View source for Lockheed L-188 Electra

{{Short description|American turboprop airliner by Lockheed, built 1957–1961}}
{{distinguish|text = the unrelated earlier [[Lockheed Model 10 Electra]]}}
{{Infobox aircraft
| name = L-188 Electra
| image = File:Varig Lockheed L-188A Electra Groves-1.jpg
| caption = The L-188 is a low-wing airliner powered by four turboprops.
| type = [[Turboprop]] [[airliner]]
| national_origin = United States
| manufacturer = [[Lockheed Corporation]]
| designer = <!--only appropriate for single designers, not project leaders-->
| first_flight = December 6, 1957
| introduction = January 12, 1959, with [[Eastern Air Lines]]
| retired = 
| status = In service<ref name="Air Spray" />
| primary_user = [[Air Spray]]<ref>https://www.airspray.com</ref> <br /> [[Buffalo Airways]]
| more_users = [[Conair Group]] (Retired) <br /> [[Eastern Air Lines]] (Retired) <br /> [[American Airlines]] (Retired) <br /> [[National Airlines (1934–1980)|National Airlines]] (Retired)
| produced = 1957–1961
| number_built = 170
| variants = 
| developed_into = [[Lockheed P-3 Orion]]
}}

The '''Lockheed L-188 Electra''' is an American [[turboprop]] airliner built by [[Lockheed Corporation|Lockheed]]. First flown in 1957, it was the first large turboprop airliner built in the United States. With its fairly high [[power-to-weight ratio]], huge propellers and very short wings resulting in the majority of the wingspan being enveloped in [[propwash]], large [[Fowler flaps]] which significantly increased effective wing area when extended, and four-engined design, the airplane had airfield performance capabilities unmatched by many jet transport aircraft even today—particularly on short runways and high altitude airfields. Initial sales were good, but after two fatal crashes that led to expensive modifications to fix a design defect, no more were ordered. Jet airliners soon supplanted [[turboprops]] for many purposes, and many Electras were modified as freighters. Some Electras are still being used in various roles into the 21st century.<ref name="Air Spray"/><ref name="Flight2011"/> The airframe was also used as the basis for the [[Lockheed P-3 Orion]] maritime patrol aircraft.

==Development==
By the mid-20th century, Lockheed had established a strong position in commercial airliner production with its [[piston-engine]]d [[Lockheed Constellation|Constellation series]]. Further development brought [[turboprop]] engines to the Constellation [[airframe]] with the [[Lockheed L-1249 Super Constellation]].

In 1951, Lockheed was approached by [[Capital Airlines (United States)|Capital Airlines]] to develop a new turboprop airliner, which was designated the YC-130, but no other carriers had any interest, so the design was dropped. Subsequently, Capital Airlines went on to order 60 British [[Vickers Viscount]]s.<ref name="Franc p396-7" /> In 1954, as a result of [[American Airlines]]' interest in developing a twin-engined aircraft, the idea resurfaced and the company offered a twin-engined design now designated the CL-303. This newer design was a high-wing type and would allow for 60 to 70 passengers. This design was also shelved for lack of interest from other carriers.<ref name="Franc p396-7" />

The following year, American Airlines revised its requirement to a four-engine design for 75 passengers with {{convert|2000|mi|km}} range.<ref name="Franc p396-7" /> Lockheed proposed a new design, the CL-310 with a low wing and four [[Rolls-Royce Dart]]s or [[Napier Eland]]s.<ref name="Franc p396-7" /> The CL-310 design met the American Airlines requirements, but failed to meet those of another interested carrier, [[Eastern Air Lines]]. Its requirements were for a longer range, a minimum cruising speed of {{convert|350|mph}}, and increased seating capacity to the 85-to-90-passenger level.<ref name="Franc p396-7" /> Lockheed redesigned the CL-310 to use the [[Allison T56|Allison 501-D13]] turboprop engine, a civilian version of the T56 developed for the [[Lockheed C-130 Hercules]] military transport.<ref name="Franc p396-7" /> The airframe was stretched to allow for more seats and handle the increased performance. This design was launched as the Model 188 with an order for 35 by American Airlines on June 8, 1955. This was followed by Eastern Air Lines with an order for 40 on September 27, 1955.<ref name="Franc p396-7" /> The first aircraft took 26 months to complete, and by that time Lockheed had orders for 129. The prototype, a Model 188A, first flew on December 6, 1957, two months ahead of schedule.<ref name="Franc p398" /><ref name="century" /> Lockheed was awarded a [[type certificate]] by the [[Civil Aeronautics Administration (United States)|Civil Aeronautics Administration]] (CAA) on 22 August 1958. The first delivery – to Eastern Air Lines – was on October 8, 1958, but it did not enter service until January 12, 1959.<ref name="Franc p396-7" /><ref>{{Cite magazine |url=http://www.aviationclassics.co.uk/news/issue-21-lockheed-martin-airliner-to-submarine-hunter |title= Lockheed Martin: Airliner to submarine hunter | magazine = Aviation Classics Magazine |issue = 21 | access-date=2016-03-17 |url-status=dead |archive-url=https://web.archive.org/web/20160323193917/http://www.aviationclassics.co.uk/news/issue-21-lockheed-martin-airliner-to-submarine-hunter |archive-date=2016-03-23}}</ref>

[[File:Lockheed L188C PH-LLK KLM MAN 23.12.63 edited-2.jpg|thumb|L188C Electra of [[KLM]] Royal Dutch Airlines operating a passenger service at [[Manchester Airport]] in 1963]]
[[File:Atlantic.airlines.electra.g-lofd.arp.jpg|thumb|An L-188CF of [[Atlantic Airlines (United Kingdom)|Atlantic Airlines]] in 2004]]
[[File:NWT Air Lockheed Electra at Vancouver Airport in August 1983.jpg|thumb|An Electra freighter of NWT Air at [[Vancouver Airport]] in August 1983]]
[[File:Lloyd Aereo Boliviano Lockheed Electra CP-853.jpg|thumb|Lockheed L-188 Electra of [[Lloyd Aéreo Boliviano]] operating at [[El Alto International Airport]], [[La Paz|La Paz, Bolivia]], in 1970]]
In 1957, the [[United States Navy]] issued a requirement for an advanced [[maritime patrol aircraft]]. Lockheed proposed a development of the Electra that was later placed into production as the P-3 Orion, which had much greater success – the Orion has been in continual front-line service for more than 50 years.

==Design==
The Model 188 Electra is a low-wing cantilever [[monoplane]] powered by four wing-mounted Allison 501-D13 turboprops. It has a retractable [[tricycle landing gear]] and a [[conventional tail]]. It has a cockpit crew of three and can carry 66 to 80 passengers in a mixed-class arrangement, although 98 could be carried in a high-density layout. The first variant was the Model 188A, followed by the longer-range 188C with room for {{convert|1000|USgal|litre}} more fuel and [[maximum take-off weight]] 15000&nbsp;kg / 33069 lbs.

==Operational history==

===Civilian operations===
[[American Airlines]] was the launch customer. [[Eastern Air Lines]], [[Braniff Airways]], and [[Northwest Airlines]] followed. The Electra suffered a troubled start. Passengers of early aircraft complained of noise in the cabin forward of the wings, caused by propeller resonance.<ref name="Allen155" /> Lockheed redesigned the [[engine nacelle]]s, tilting the engines upwards 3°.<ref name="Allen155" /><ref name="Allen159" /> The changes were incorporated on the production line by mid-1959 or as modification kits for the aircraft already built, and resulted in improved performance and a better ride for passengers.<ref name="Allen159" /><ref name="Allen161" />

Three aircraft were lost in fatal accidents between February 1959 and March 1960. After the third crash, the FAA limited the Electra's speed until the cause could be determined.<ref name="Allen155" /> After an extensive investigation, two of the crashes (in September 1959 and March 1960) were found to be caused by an engine-mount problem. The mounting of the gearbox cracked, and the reduced rigidity enabled a phenomenon called "whirl mode flutter" (analogous to the [[precession]] of a child's [[spinning top]] as it slows down, an interaction of propellers with airflow) that affected the outboard engine nacelles. When the oscillation was transmitted to the wings and the flutter frequency decreased to a point where it was [[Mechanical resonance|resonant]] with the outer wing panels (at the same frequency, or harmonically related ones), violent up-and-down oscillation increased until the wings would tear off.<ref name="Allen155" /><ref name="Lee" /><ref name="inquest" />

The company implemented an expensive modification program (the Lockheed Electra Achievement Program, LEAP) in which the engine mounts and the wing structures supporting the mounts were strengthened, and some of the wing skins were replaced with thicker material.<ref name="Allen155" /> All Electras were modified by the factory at Lockheed's expense, with the modifications taking 20 days for each aircraft. The changes were incorporated in later aircraft as they were built.<ref name="Allen155" /> However, the damage had been done, and the public lost confidence in the type. This and the smaller jets that were being introduced eventually relegated Electras to the smallest airlines. Production ended in 1961 after 170 had been built. Losses to Lockheed have been estimated as high as $57 million, not counting an additional $55 million in lawsuits.<ref name="century" /> Electras continued to carry passengers into the 1990s, but most now in use are freighters.

Several airlines in the US flew Electras, but the only European airline to order the type from Lockheed was [[KLM]], which used 12 between September 1959 and January 1969 in Europe and east to Saigon and Kuala Lumpur.

[[File:Lockheed L-188C ZK-TEA ANZ.QF SYD 21.09.70 edited-3.jpg|thumb|[[Air New Zealand]] L-188C Electra departing Sydney for Wellington in 1970 on the joint schedule with [[Qantas]]]]
[[File:Lockheed L-188C(F) Electra, TPI International Airways AN0188507.jpg|thumb|A TPI International Airways (N860U)  L-188 at [[Miami International Airport]], July 10, 1989]]

In the South Pacific, [[Tasman Empire Airways Limited]] (TEAL) and its successor [[Air New Zealand]] flew the Electra on trans-Tasman flights.<ref name="Allen162" /> In Australia [[Trans Australia Airlines]] (TAA) and [[Ansett Australia|Ansett]] each operated three Electras on trunk routes between the Australian mainland state capital cities, and later to [[Port Moresby]], from 1959 until 1971.<ref name="Allen161" /> Ansett had its three Electras converted to freighters in 1970–71 and continued to fly them until 1984.<ref name="Allen1612" /> [[Qantas]] also operated four Electras on its routes to Hong Kong and Japan, to [[New Caledonia]], and to [[New Guinea]] (until the New Guinea route was handed to Ansett and TAA); then later across the Indian Ocean to South Africa, and across the Tasman in competition with TEAL after that airline became 100% New Zealand-owned.<ref name="Allen162" /><ref name="Brimson19093" /> The divestiture of TEAL's 50%-Australian shareholding was itself prompted by the Electra order, as TEAL wanted jet aircraft, but was forced by the Australian government to order Electras in order to standardise with Qantas.<ref name="Brimson19093" /><ref name="Allen158" /><ref name="Brimson16065" /> Three Qantas Electras were retired in the mid-1960s and the fourth in 1971.<ref name="Allen162" />

Some Electras were sold to South American airlines, where the Electra had highly successful operations, such as those of [[Lloyd Aéreo Boliviano]] and [[Líneas Aéreas Paraguayas]];<ref name="ilovevarig">{{cite web |url=http://www.flogao.com.br/ilovevarig/131690382 |title=LAP – Líneas Aéreas Paraguayas |work=Flogao |language=pt |date=2009-09-15 |access-date=2014-12-22 |url-status=live |archive-url=https://web.archive.org/web/20141222104506/http://www.flogao.com.br/ilovevarig/131690382 |archive-date=2014-12-22}}</ref> in both cases, the Electra ensured the airlines' international operations before they started using jets. Most notably, Brazilian flag carrier airline [[Varig]] operated flawlessly a fleet of 14 Electras on the extremely busy [[Santos Dumont Airport|Rio de Janeiro]]-[[São Paulo–Congonhas Airport|São Paulo]] shuttle service (the so-called ''Ponte Aérea'' – or "Air Bridge" in Portuguese) for 30 years, completing over half a million flights on the route before the type was replaced by [[Boeing 737 Classic|Boeing 737-300]] and [[Fokker 100]] jets in 1992.<ref name="avioesemusicas">{{cite web |url=http://www.avioesemusicas.com/as-aventuras-com-o-electra-na-africa-causos-parte-2.html |title=As aventuras com o Electra na África – "Causos" Parte 2 |language=pt |trans-title=Adventures with the Electra in Africa – Stories, Part 2 |last=Sousa |first=Joselito |date=2010-02-26 |access-date=2014-12-22 |url-status=live |archive-url=https://web.archive.org/web/20141222103625/http://www.avioesemusicas.com/as-aventuras-com-o-electra-na-africa-causos-parte-2.html |archive-date=2014-12-22}}</ref> The Electra became so iconic on that route that its retirement caused a commotion in Brazil, with extensive press coverage and many special tributes.<ref name="arquivo-jetsite">{{cite web |url=http://www.aviacaocomercial.net/jetsite/nostalgia_electra.htm |title=Electra II |language=pt |last=Beting |first=Gianfranco |work=Arquivo Jetsite |access-date=2014-12-22 |url-status=live |archive-url=https://web.archive.org/web/20141222104444/http://www.aviacaocomercial.net/jetsite/nostalgia_electra.htm |archive-date=2014-12-22}}</ref>

During the mid-1970s, several secondhand Electras were bought by [[air travel club]]s, including Nomads, Adventurers and Shillelaghs. Others were retired from passenger service into air-cargo use, 40 being modified by a subsidiary of Lockheed from 1968 with one or two large doors in the left side of the fuselage and a reinforced cabin floor.<ref name="Allen155" /> A major user of cargo Electras in 1970s and 1980s were civilian contractors for the [[Logair]] ([[United States Air Force]]) and [[Quicktrans]] ([[United States Navy]]) domestic military cargo networks. Such contractors included [[Universal Airlines (United States)|Universal Airlines]], [[Overseas National Airways]], [[Saturn Airways]], [[Trans International Airlines]] and [[Zantop International Airlines]]. A perhaps less expected contractor was [[Hawaiian Airlines]], which operated cargo Electras for Logair in the late 1970s. {{further|Logair|Quicktrans|Universal Airlines (United States)|Overseas National Airways|Saturn Airways|Trans International Airlines| Zantop International Airlines|Hawaiian Airlines#Hawaiian Air Cargo}}

In California, [[Holiday Airlines (US airline)|Holiday Airlines]] operated Electras from the late 1960s through the early 1970s into [[Lake Tahoe Airport]], which did not permit the use of jets at the time. On the collapse of Holiday in 1974, its service was backfilled by [[Air California]] and [[Pacific Southwest Airlines]], both of which re-acquired Electras to serve Lake Tahoe.{{further|Holiday Airlines (US airline)}}

===Military use===
In 1973, the [[Argentine Navy]] bought three Electras equipped with cargo doors. These were used during the "[[Dirty War]]" to toss political prisoners into the [[Rio de La Plata]] in the infamous [[death flights]].<ref name="Diego" /> The Electras were also used for transport duties during the [[Argentine air forces in the Falklands War#Argentine Navy|Falklands War]] in 1982.

In 1983, after the retirement of its last [[Lockheed P-2 Neptune|SP-2H Neptune]], the Argentine Navy bought further civilian Electra airframes, modified several for [[maritime patrol]],<ref name="ara" /> and widely used them until their replacement by P-3s in 1994.<ref name="gaggero" /> One of the Argentine Navy's Electras, known locally as L-188E ''Electron'', is preserved at the Argentine Naval Aviation Museum ({{interlanguage link|Museo de la Aviación Naval|es}}) at [[Bahía Blanca]].<ref name="Argentina"/>

==Variants==
;{{visible anchor|L-188A}}
:Initial production version
;L-188AF (All Freight version)
:Unofficial designation for freighter conversions of L-188A carried out under a supplementary type certificate.
;L-188PF (Passenger-Freight version)
:Unofficial designation for freighter conversions of L-188A carried out under a supplementary type certificate.
;{{visible anchor|L-188C}}
:Long-range version with increased fuel capacity ({{convert|6,940|USgal|L}} fuel capacity from {{convert|5,450|USgal|L}} on L-188A) and a higher operating gross weight (Maximum takeoff weight is {{cvt|116,000|lb|kg}} compared to {{cvt|113,000|lb|kg}} of the "A" version).
;L-188CF
:Unofficial designation for freighter conversion of L-188C carried out under a supplementary type certificate.
;[[lockheed P-3 Orion|YP-3A Orion]]
:One Orion aerodynamic test bed, fuselage shortened by {{convert|7|ft|m|0}}.

==Operators==

===Current operators===
By July 2018, only two Electras in the world were transporting cargo, both with [[Buffalo Airways]].<ref>{{Cite web |url=https://www.flightglobal.com/reports/world-airliner-census-2018/136423.article |title=World Airline Census 2018 |website=Flightglobal.com |language=en-GB |access-date=2018-08-26}}</ref> Thirteen other aircraft remained in service as air tankers, nine with [[Air Spray]] ([[aerial firefighting]]) and four with Buffalo Airways (cargo/bulk fuel and aerial firefighting).<ref>{{Cite web |url=http://fireaviation.com/tag/l-188/ |title=Two air tankers recently certified |work=Fire Aviation |access-date=2016-08-24 |url-status=live |archive-url=https://web.archive.org/web/20161012132556/http://fireaviation.com/tag/l-188/ |archive-date=2016-10-12}}</ref><ref name="Air Spray" /> As of 2024, no passenger flights are taken on Electras, with Air Spray and Buffalo Airways still operating 13 cargo and firefighting planes.{{Citation needed|date=October 2024}}

===Former civilian operators===
{{div col|colwidth=20em}}
;Australia
*[[Ansett Australia|Ansett Airlines]]{{sfn|Sherlock|1977|p=15}}
*[[Qantas]]{{sfn|Sherlock|1977|p=22}}
*[[Trans Australia Airlines]]{{sfn|Sherlock|1977|p=23}}
;Austria
*[[Amerer Air]]
;Bolivia
*[[Lloyd Aéreo Boliviano]]{{sfn|Sherlock|1977|p=19}}
;Brazil
*[[Varig]]{{sfn|Endres |1979| pp= 333–334}}
;Canada
*[[Conair Group]]<ref>{{cite web |url=https://aerialfiremag.com/2023/01/03/the-last-mission/ |title=The Last Mission &#124; AerialFire Magazine |date=3 January 2023}}</ref>
*International Jetair{{sfn|Sherlock|1977|pp=17, 19}}
*[[First Air|Northwest Territorial Airways]]{{sfn|Endres |1979| pp= 40-41}}
*[[Nordair]]{{sfn|Endres |1979| p= 38}} 1972–1987 ([[Canadian Airlines]] 1987–1989<ref>CF-NAY and C-http://www.airliners.net/search?airline=21089&display=detail</ref>) - 4 operated for [[Transport Canada]] Ice Reconnaissance service 1970s–1989
;Colombia
*[[SAM Colombia]]{{sfn|Sherlock|1977|p=23}}
*[[Aerocondor Colombia]]{{sfn|Endres |1979| p=154}}
*[[Aerocosta]]{{sfn|Sherlock|1977|p=14}}
;Republic of the Congo
*[[Trans Service Airlift]]
;Costa Rica
*[[Aero Servicios Puntarenas SA]] (APSA){{sfn|Sherlock|1977|p=14}}
*[[Lacsa]]{{sfn|Sherlock|1977|p=19}}
;Ecuador
*[[Ecuatoriana de Aviación]]{{sfn|Sherlock|1977|p=16}}
*[[Ecuadorian Air Force|Transportes Aereos Nacionales Ecuatorianos]] (TAME){{sfn|Endres |1979| p=152}}
;El Salvador
*[[TACA International Airlines]]{{sfn|Sherlock|1977|p=23}}
;Guyana
*[[Guyana Airways]]{{sfn|Sherlock|1977|p=17}}
;Honduras
*[[SAHSA]]{{sfn|Endres |1979| p=163}}
*Transportes Aereos Nacionales (TAN Airlines){{sfn|Endres |1979| p=164}}
;Hong Kong
*[[Cathay Pacific|Cathay Pacific Airways]]{{sfn|Sherlock|1977|p=16}}
;Indonesia
*[[Garuda Indonesia|Garuda Indonesia Airlines]]{{sfn|Sherlock|1977|p=17}}
*[[Mandala Airlines]]
;Ireland
*[[Air Contractors|Hunting Cargo Airlines]]
;Laos
*[[Royal Air Lao]]{{sfn|Sherlock|1977|p=22}}
;Mexico
*[[Bank of Mexico|Banco de México]] (corporate aircraft){{sfn|Sherlock|1977|p=16}}
*Mex-Jet Cargo (all cargo freighter version)
;Netherlands
*[[KLM]]{{sfn|Sherlock|1977|p=19}}
*[[Martinair]]{{sfn|Sherlock|1977|p=20}}
;Netherlands Antilles
*[[Air ALM]] (all cargo freighter version<ref>http://www.timetableimages.com {{webarchive|url=https://web.archive.org/web/20170912213455/http://timetableimages.com/ |date=2017-09-12 }}, April 1, 1991 ALM system timetable</ref>)
;Norway
*[[Fred. Olsen Airtransport]]<ref name=nor>Hagby 1998, p. 55.</ref>
*[[Nordic Air]]<ref name=nor />
;New Zealand
*[[Air New Zealand]]{{sfn|Sherlock|1977|p=15}}
*[[Tasman Empire Airways Limited|TEAL]]{{sfn|Sherlock|1977|p=15}}
;Panama
*[[Copa Airlines]]{{sfn|Endres|1979|p=162}} 
;Paraguay
* [[Líneas Aéreas Paraguayas]]{{sfn|Endres|1979|p=416}}
;Peru
* [[Líneas Aéreas Nacionales S. A. (Peru)|Líneas Aéreas Nacionales SA]]{{sfn|Sherlock|1977|p=19}}
;Philippines
* [[Air Manila International]]{{sfn|Sherlock|1977|p=15}}
;Sweden
*[[Falcon Air]]{{sfn|Sherlock|1977|p=17}}
*[[West Air Sweden]]
;Taiwan
* Winner Airways (one L-188A leased from [[Eastern Air Lines]] for two months in 1970)
;United Kingdom
*[[Air Contractors|Air Bridge Carriers]]
*[[Atlantic Airlines (United Kingdom)|Atlantic Airlines]]
*[[Channel Express]]
;United States
*[[Air California]]{{sfn|Endres|1979|p=192}}
*[[Air Florida]]{{sfn|Sherlock|1977|p=14}}
<!-- *Air Southwest<ref>Flight International, 10 April 1969, p.557</ref> Comment: Air Southwest was the working name under which Southwest Airlines was developed, and the original plan was, in fact, to use Electras. But, when the airline was finally permitted to fly, they changed their name and their fleet type - the name to Southwest Airlines, the fleet type to Boeing 737s. They never flew under the name Air Southwest, and never flew an Electra. Never owned or leased one. So "Air Southwest" does not belong on this list. -->
*[[American Airlines]]{{sfn|Sherlock|1977|p=15}}
*[[American Flyers Airline]]{{sfn|Sherlock|1977|p=15}}
*[[Braniff International Airways]]{{sfn|Sherlock|1977|p=16}}
*[[Cam Air International]]
*[[Denver Ports of Call]]
*[[Eastern Air Lines]]{{sfn|Sherlock|1977|p=17}}
*[[Evergreen International Airlines]]{{sfn|Endres|1979|p=230}}
*[[Federal Aviation Administration]]{{sfn|Sherlock|1977|p=17}}
*[[Fleming International Airways]]{{sfn|Endres|1979|p=233}}
*[[Fairbanks Air Service]]{{sfn|Sherlock|1977|p=17}}
*[[Great Northern Airlines]]{{sfn|Endres|1979|p=238}}
*[[Gulf Air Transport]]  
*[[Hawaiian Airlines#Hawaiian Air Cargo|Hawaiian Airlines]]{{sfn|Endres|1979|p=239}} (in cargo service)
*[[Holiday Airlines (US airline)|Holiday Airlines]]{{sfn|Sherlock|1977|p=17}}
*[[Intermountain Airlines]]{{sfn|Sherlock|1977|p=17}}
*[[Johnson Flying Service|Johnson International Airlines]]{{sfn|Sherlock|1977|p=19}}
*[[McCulloch International Airlines]]{{sfn|Sherlock|1977|p=20}}
*[[McCulloch International Airlines#McCulloch Properties|McCulloch Properties]]
*[[NASA]]{{sfn|Sherlock|1977|p=20}}
*[[National Airlines (NA)|National Airlines]]{{sfn|Sherlock|1977|pp=20–21}}
*[[National Center for Atmospheric Research]]{{sfn|Sherlock|1977|p=21}}<ref>[https://archive.today/20121212231743/http://www.eol.ucar.edu/projects/vortex95/electra.html NCAR Electra specs] Retrieved 20 October 2012</ref>
*[[Northwest Airlines]]{{sfn|Sherlock|1977|p=21}}
*[[Overseas National Airways]]<ref name=hearings1972/>
*[[Pacific Southwest Airlines]]{{sfn|Endres|1979|p=256}}
*[[Reeve Aleutian Airways]]{{sfn|Endres|1979|p=264}} (passenger/cargo "[[Combi aircraft|Combi]]" versions) 
*[[Renown Aviation]]<ref>{{cite web |url=https://asn.flightsafety.org/database/operators/10234 |title=Renown Aviation |website=Aviation Safety Network |access-date=May 6, 2019}}</ref>
*[[Saturn Airways]]{{sfn|Sherlock|1977|pp=22–23}}
*Shillelagh Travel Club<ref name="N125US"/>
*[[Southeast Airlines]]
*[[Spirit of America Airlines]]
*[[Trans International Airlines]],{{sfn|Endres|1979|pp=280-281}} later became [[Transamerica Airlines]]
*[[Trans International Airlines (1985–1989)]]
*[[TPI International Airways]]
*[[Universal Airlines (United States)]]<ref name=hearings1972>{{cite report |url=https://hdl.handle.net/2027/uiug.30112002853734?urlappend=%3Bseq=259%3Bownerid=106788185-263 |hdl=2027/uiug.30112002853734 |hdl-access=free |page=251 |publisher=U.S. Government Printing Office |location=Washington, DC |year=1972 |title=Regulation of Rates and Practices of Air Carriers and Foreign Air Carriers. Hearings Before the Subcommittee on Aviation of the Committee on Commerce, United States Senate, Ninety-Second Congress, First Session, on S. 2423}}</ref>
*[[Western Airlines]]{{sfn|Sherlock|1977|p=23}}
*[[Zantop International Airlines]]{{sfn|Endres|1979|p=298}}
;Zaire
*[[Karibu Airways]]
*[[Trans Service Airlift]]
{{div col end}}

===Military operators===
;Argentina
*[[Argentine Naval Aviation]]{{sfn|Sherlock|1977|p=16}}
;Bolivia
*[[Bolivian Air Force]] – 1 from 1973, still in use in 1987.<ref>Siegrist 1987, pp. 174–175.</ref>
;Ecuador
*[[TAME]]{{sfn|Sherlock|1977|p=24}}
;Honduras
*[[Honduran Air Force]] – one 188A from 1979
;Mexico
*[[Mexican Air Force]] – one 188A from 1978 to 1987.
;Panama
*[[Panamanian Air Force]] – One 188C from 1973 to 1984.

===Orders===
;Model 188A
* [[Eastern Air Lines]] ordered 40 188As which were delivered between November 1958 and August 1959, the last five as 188Cs.<ref name="prop" />
* [[American Airlines]] ordered 35 188As which were delivered between November 1958 and March 1960.<ref name="prop" />
* [[National Airlines (NA)|National Airlines]] ordered 14 188As which were delivered between April 1959 and January 1961.<ref name="prop" />
* [[Ansett Australia|Ansett-ANA]] ordered three 188As which were delivered to Australia in February 1959, April 1959 and February 1960.<ref name="Allen162"/><ref name="prop" />
* [[Braniff]] ordered nine 188As which were delivered between April 1959 and January 1960.<ref name="prop" />
* [[Western Airlines]] ordered 12 188As which were delivered between May 1959 and February 1961.<ref name="prop" />
* [[Cathay Pacific]] ordered two 188As which were delivered in 1959.{{sfn|Sherlock|1977|p=16}}
* [[Trans Australia Airlines]] ordered three 188As which were delivered to Australia between June 1959 and August 1960.<ref name="prop" />
* [[General Motors]] ordered one 188A which was delivered in July 1958.<ref name="prop" />

;Model 188C
* [[Northwest Orient Airlines]] ordered 18 188Cs which were delivered between July 1959 and June 1961.<ref name="prop" />
* [[Pacific Southwest Airlines]] ordered three 188Cs which were delivered in November and December 1959.<ref name="prop" />
* [[Capital Airlines (United States)|Capital Airlines]] ordered five 188Cs but later cancelled the order. The five aircraft were sold to other operators.<ref name="prop" />
* [[Qantas]]  ordered four 188Cs which were delivered between October and December 1959.<ref name="prop" />
* [[KLM]] ordered 12 188Cs which were delivered between September 1959 and December 1960.<ref name="prop" />
* [[Tasman Empire Airways Limited|Tasman Empire Airways]] ordered three 188Cs which were delivered in October and December 1959.<ref name="prop" />
* [[Garuda Indonesia|Garuda]] ordered three 188Cs which were delivered in January 1961.<ref name="prop" />

==Aircraft on display==
*s/no. 1003 ex [[NASA]] ''N428NA''. This was the first P-3 [[Lockheed P-3 Orion|Orion]] prototype. It was converted from an existing L188 Electra airframe into the YP3V-1/YP-3A Orion. It was later converted into the [[List of Lockheed P-3 Orion variants|NP-3A]] by [[United States Naval Research Laboratory]], then used by NASA for the Earth Resources Observation Program.<ref>{{cite web |url=https://www.hq.nasa.gov/alsj/apollo.photechnqs2.pdf |title=Apollo Lunar Surface Journal |access-date=2016-02-24 |url-status=live |archive-url=https://web.archive.org/web/20160303090359/https://www.hq.nasa.gov/alsj/apollo.photechnqs2.pdf |archive-date=2016-03-03}} retrieved 24 February 2016</ref>{{Failed verification|reason=The source does not state any information that is included here, other than that a converted Electra designated as NP-3A was used by NASA|date=July 2016}} Preserved at the [[National Naval Aviation Museum]], Forrest Sherman Field, [[Pensacola, Florida]].{{Citation needed|reason=Reliable source needed for the history of this aircraft; and its preservation at the NAM|date=July 2016}}
*s/no. 1025 ex [[Varig]] ''PP-VJM''; preserved at the [[Museu Aeroespacial]] in Rio de Janeiro, Brazil<ref>{{Cite web |title=LOCKHEED L188A - Electra II |url=http://www2.fab.mil.br/musal/index.php/anvs/332-electra |website=fab.mil.br/musal/ |publisher=Brazilian Air Force |language=pt |access-date=13 July 2016 |url-status=live |archive-url=https://web.archive.org/web/20161003181954/http://www2.fab.mil.br/musal/index.php/anvs/332-electra |archive-date=3 October 2016}}</ref>
*s/no. 1125 TAM69, in [[TAM – Transporte Aéreo Militar]] colors at the Bolivia Aeronautical Museum, El Alto, La Paz, Bolivia.<ref>{{Cite web |url=http://aviacionboliviana.net/art_historia-del-museo-aeroespacial/ |title=Historia del Museo Aeroespacial de la Fuerza Aérea Boliviana – AviaciónBoliviana.Net |website=aviacionboliviana.net |access-date=2016-11-15 |url-status=dead |archive-url=https://web.archive.org/web/20161115134244/http://aviacionboliviana.net/art_historia-del-museo-aeroespacial/ |archive-date=2016-11-15}}</ref>{{failed verification|reason=Although an Electra is visible in an image on the source webpage, there is no actual mention of it at all, thus the details are not confirmed |date=November 2016}}<ref>{{Cite news |url=http://www.jetphotos.net/photo/8132189 |title=Photo: TAM-69 (CN: 1125) TAM - Transporte Aéreo Militar Lockheed L-188A Electra by Zenon Sanchez Z. |access-date=2016-11-15 |url-status=live |archive-url=https://web.archive.org/web/20161115134004/http://www.jetphotos.net/photo/8132189 |archive-date=2016-11-15}}</ref>{{better source needed|reason=An image is not a reliable source; in this case the photographer may have misidentified the subject's details, such as its serial number|date=November 2016}}
* ex Argentine Navy ''6-P-104'', converted to L-188EW WAVE, retired in 1996; on display at the Museo de la Aviación Naval, [[Bahia Blanca]], Argentina.<ref name="Argentina"/>
* ex Argentine Navy ''6-P-106'', converted to L-188E Electron, retired in 1996; on display at the Museo de la Aviación Naval, [[Comandante Espora Airport|Comandante Espora Air Naval Base]], Bahia Blanca.<ref name="Argentina">{{cite web |url=http://www.ara.mil.ar/pag.asp?idItem=114 |title=Museo de la Aviación Naval |language=es |website=ara.mil.ar |publisher=Estado Mayor General de la Armada |access-date=13 July 2016 |url-status=live |archive-url=https://web.archive.org/web/20160817064155/http://www.ara.mil.ar/pag.asp?idItem=114 |archive-date=17 August 2016}}</ref>

==Accidents and incidents==
Of the total of 170 Electras built, as of June 2011, 58 have been written off because of crashes and other accidents.<ref name="ASN" />

* February 3, 1959: [[American Airlines Flight 320]] en route from Chicago to New York City's LaGuardia Airport crashed on approach, 65 of 73 on board died.<ref name="flight1959" /><ref name="asn19590203-1" />
* September 29, 1959: [[Braniff International Airways Flight 542]] crashed near [[Buffalo, Texas]], en route to [[Dallas, Texas]] from [[Houston, Texas]]. All 29 passengers and five crew members died in the crash. The Civil Aeronautics Board blamed the crash on the "whirl-mode" prop theory and in-flight separation of a wing from the aircraft.<ref name="airdisaster" /><ref name="asn19590929-0" />
* March 17, 1960: [[Northwest Airlines Flight 710|Northwest Orient Flight 710]], en route from [[Chicago, Illinois|Chicago]] to [[Miami, Florida]], broke apart in flight over [[Perry County, Indiana]], in the second "whirl-mode" crash. All 63 people on board died (57 passengers and six crew members).<ref name="Allen155"/><ref name="asn19600317-0" />
* September 14, 1960: An Electra operated as [[American Airlines Flight 361]] caught its landing gear on a dike while landing at [[LaGuardia Airport]]. The aircraft came to rest upside down. There were no fatalities among the 76 occupants (70 passengers, six crew).<ref>{{cite news |author=<!--Staff writer(s); no by-line.--> |title=Electra Airliner Flips at LaGuardia, Burns; 76 Aboard Walk Out |url=https://news.google.com/newspapers?id=OmgtAAAAIBAJ&sjid=44kFAAAAIBAJ&pg=3957%2C1956478 |publisher=[[Schenectady Gazette]] |agency=[[The Associated Press]] |location=Schenectady, New York |date=September 15, 1960 |access-date=October 9, 2014}}</ref><ref>{{cite web |url=https://asn.flightsafety.org/asndb/333719 |title=ASN Aircraft accident Lockheed L-188 Electra N6127A New York-LaGuardia Airport, NY (LGA) |author=<!--Staff writer(s); no by-line.--> |website=aviation-safety.net |publisher=Aviation Safety Network / Flight Safety Foundation |access-date=October 9, 2014 |url-status=live |archive-url=http://archive.wikiwix.com/cache/20141010173635/http://aviation-safety.net/database/record.php?id=19600914-1 |archive-date=2014-10-10}}</ref>
* October 4, 1960: [[Eastern Air Lines Flight 375]] crashed on takeoff from [[Boston, Massachusetts]]'s [[Logan International Airport]]; 62 of 72 on board died. The crash was eventually determined to be the result of bird ingestion into three of the four engines.<ref name="asn19601004-0" />
* June 12, 1961: [[KLM Flight 823]] crashed short of the runway on approach to [[Cairo]]; 20 of the 36 on board died.<ref name="asn19610612-1" />
* September 17, 1961: [[Northwest Orient Airlines Flight 706]] crashed on takeoff from Chicago-[[O'Hare International Airport]]; all 37 on board died. The crash was eventually determined to be the result of mechanical failure in the aileron primary control system due to the improper replacement of the aileron boost assembly.<ref name="asn19610917-3" />
* March 27, 1965: While on a training flight, a [[Tasman Empire Airways Limited|Tasman Empire Airways]] L-188 crashed while landing at [[Whenuapai]] airport in [[Auckland]], [[New Zealand]]. Although the aircraft was completely destroyed, all occupants escaped with only one minor injury.<ref>[http://www.teal.co.nz/teal/TEAL%203.htm "Lockheed Electra L-188 crash."] {{webarchive|url=https://web.archive.org/web/20130813040331/http://www.teal.co.nz/teal/TEAL%203.htm |date=2013-08-13 }} ''Tasman Empire Airways Limited'', 2001. Retrieved: September 17, 2013.</ref>
* April 22, 1966: [[American Flyers Airline Flight 280/D]] crashed into a hill on approach to [[Ardmore Municipal Airport]] in [[Oklahoma]]; all five crew and 78 of the 93 passengers on board died.
* February 16, 1967: [[Garuda Indonesian Airways Flight 708]] crashed while attempting to land at [[Sam Ratulangi International Airport|Manado-Sam Ratulangi Airport]]. A total of 22 of 92 passengers and crew on board died. The crash was eventually determined to be the result of an awkward landing technique resulting in an excessive rate of sink on touchdown. Marginal weather at the time of landing was a contributing factor.<ref name="asn19670216-1" />
* May 3, 1968: [[Braniff International Airways Flight 352]], en route from [[Houston]] to [[Dallas]], disintegrated over [[Dawson, Texas]]. All 80 passengers and five crew members died. This was the deadliest aviation disaster in [[Texas]] at the time. The [[National Transportation Safety Board]] found the [[probable cause]] to be overstressing of the structure beyond its ultimate strength during attempted recovery from unusual aircraft attitude produced by [[turbulence]] of a [[thunderstorm]].<ref name="asn19680503-0" />
* August 9, 1970: [[LANSA Flight 502]] crashed shortly after takeoff from Quispiquilla Airport near [[Cusco]], Peru; 99 of the 100 people on board, plus two people on the ground, died. The co-pilot was the only survivor.<ref name="asn19700809-0" />
* August 24, 1970 [[Universal Airlines (United States)|Universal Airlines]] L-188C N855U departed [[Hill Air Force Base]] in [[Ogden, Utah]] on an Air Force [[Logair]] flight to [[Mountain Home Air Force Base]] in Idaho. The aircraft departed without all its hydraulic systems in operation, leaving insufficient elevator authority, resulting in the aircraft nosing over into the ground. The aircraft was destroyed but the crew escaped with injuries. The investigation found fault with the captain and flight engineer for not following approved procedures and directives.<ref>{{cite web |url=https://asn.flightsafety.org/asndb/331028 |publisher=Aviation Safety Network |website=asn.flightsafety.org |title=Accident Lockheed L-188CF Electra N855U, Monday 24 August 1970 |access-date=28 November 2024}}</ref><ref>{{cite news |title=Cargo Ship Crashes on Hill Runway |url=https://www.newspapers.com/article/the-salt-lake-tribune-cargo-ship-crashes/168801396/ |work=[[The Salt Lake Tribune]] |date=25 August 1970 |page=21 |via=[[Newspapers.com]]}}</ref>
* December 24, 1971: [[LANSA Flight 508]], en route from [[Lima, Peru|Lima]] to [[Pucallpa, Peru]], entered an area of strong turbulence and lightning and disintegrated in midair due to structural failure following a lightning strike and fire. Of the 92 people on board, 91 died.<ref name="asn19711224-0" /> One passenger, [[Juliane Koepcke]], survived when trees cushioned her fall into the rainforest.
* March 19, 1972 [[Universal Airlines (United States)|Universal Airlines]] L-188C N851U was on a ferry flight from [[Tucson International Airport|Tucson, Arizona]] to [[Hill Air Force Base]] in [[Ogden, Utah]] when it developed an engine overspeed issue, complicated by an inability to feather. The aircraft landed at Hill just after midnight, whereupon the engine exploded, destroying a large portion of the left wing and causing a substantial fire. The crew had minor injuries but the aircraft was a writeoff. The crew was cited in the investigation for improper procedures.<ref>{{cite web |url=https://asn.flightsafety.org/asndb/330566 |publisher=Aviation Safety Network |website=asn.flightsafety.org |title=Accident Lockheed L-188CF Electra N851U, Sunday 19 March 1972 |access-date=28 November 2024}}</ref><ref>[https://www.newspapers.com/image/597396079 ''Crewmen Escape Injury As Plane Engine Explodes'', Ogden (UT) Standard-Examiner, 20 March 1972]</ref>
* August 27, 1973: A Lockheed L-188A Electra passenger plane (HK-777) operated by [[1973 Aerocóndor Lockheed L-188 Electra crash|Aerocondor was destroyed]] when it flew into the side of the Cerro el Cable mountain shortly after takeoff from Bogotá-Eldorado Airport (BOG), Colombia. All 36 passengers and six crew members died.<ref>{{cite web |title=ASN Aircraft accident Lockheed L-188A Electra HK-777 Bogotá-Eldorado Airport (BOG) |url=https://asn.flightsafety.org/asndb/330108 |website=Aviation Safety Network |access-date=22 May 2017 |url-status=live |archive-url=https://web.archive.org/web/20171014211354/https://aviation-safety.net/database/record.php?id=19730827-1 |archive-date=14 October 2017}}</ref>
* October 30, 1974: On approach to Rea Point Airfield on [[Melville Island (Northwest Territories and Nunavut)|Melville Island]], Northwest Territories (now Nunavut), Canada, [[Panarctic Oils Flight 416]] crashed into the ice-covered sea some 3&nbsp;km south of its destination after the pilot-in-command abruptly increased the rate of descent in apparent disorientation. All 30 passengers and two of the four crew members, including the pilot-in-command, died.<ref>{{ASN accident|19741030-0|title=Panarctic Oils Flight 416|}}</ref><ref>{{cite web |title=Inquiry Into the Matter of a Crash of a Panarctic Electra Aircraft at Rea Point, Northwest Territories, October 30, 1974, before His Honour Judge W.A. Stevenson : report. |url=http://publications.gc.ca/collections/collection_2016/bcp-pco/Z1-1975-2-eng.pdf |access-date=16 August 2019}}</ref>
* June 4, 1976: [[Air Manila Flight 702]], an L-188A (RP-C1061), crashed just after takeoff from the Guam Naval Air Station; the 45 occupants and one person on the ground died.<ref name="aar77-06" /><ref name="asn19760604-0" /> 
* On November 18, 1979, {{Interlanguage link|Transamerica Airlines Flight 18|lt=Transamerica Airlines Flight 18|de|Transamerica-Airlines-Flug 18}} L-188 (N859U), operating a flight for the US military ([[Logair]] 3N18) from Hill Air Force Base, crashed near Salt Lake City airport, Utah.  While climbing between 12,000 and 13,000&nbsp;ft, all electrical power was lost; the crew requested an immediate descent. The aircraft attained a high airspeed and a high rate of descent and the aircraft disintegrated in flight; all three crew members died. The NTSB investigation stated the probable cause was a progressive failure of the aircraft electrical system leading to the disabling or erratic performance of flight critical flight instruments and lighting. As a result, the crew became disoriented and lost control of the aircraft. The crew's efforts to regain control of the aircraft imposed loads which exceeded the design limits and caused it to break up in flight. This was the third [[Universal Airlines (United States)|Universal Airlines]] Electra to be destroyed in connection with [[Hill Air Force Base]] (inherited by Trans International from [[Saturn Airways]]). See August 24, 1970 and March 19, 1972.
* January 8, 1981, a [[SAHSA]] L-188A {{Interlanguage link|1981 SAHSA Electra crash|lt=crashed|de|Flugunfall einer Lockheed L-188 Electra der SAHSA}} in Guatemala City, killing all six crew members on board.<ref>{{Cite web |title=ASN Aircraft accident Lockheed L-188A Electra HR-SAW Guatemala City-La Aurora Airport (GUA) |url=https://asn.flightsafety.org/asndb/328169}}</ref>  
*On 8 June 1983, [[Reeve Aleutian Airways Flight 8]]'s [[Aircraft engine position number|number-four]] propeller separated from the aircraft and tore a hole in the fuselage over the [[Pacific Ocean]] causing a rapid decompression and loss of control. The pilots managed to land the aircraft safely at Anchorage, Alaska and all 15 passengers and crew survived. Since the propeller fell into the sea and was never recovered, the cause of the separation is unknown.
* May 30, 1984, [[Zantop International Airlines]] Flight 931, a Lockheed L-188AF Electra (N5523) flying regularly scheduled cargo service from Baltimore/Washington International Airport (BWI) to Detroit-Willow Run Airport (YIP), crashed at Chalkhill, Pennsylvania; all three crew members and the sole passenger died. While cruising at FL220, at approximately 01:44 AM, the aircraft entered an unusual attitude shortly after a course change. During efforts to recover the aircraft the pilots imposed loads on the airframe that exceeded the aircraft's design limits and it broke apart at altitude. NTSB reported that in-flight problems with the aircraft's gyros likely provided conflicting attitude data to the flight crew at the time of the upset and this, combined with a lack of visual cues, were contributing causes of the accident.<ref>{{cite report |url=https://libraryonline.erau.edu/online-full-text/ntsb/aircraft-accident-reports/AAR85-04.pdf |title=Aircraft Accident Report, Zantop International Airlines, Inc., Lockheed L-188A Electra, Chalkhill, Pennsylvania, May 31, 1984 |date=19 March 1985 |publisher=[[National Transportation Safety Board]]}}</ref> 
* January 21, 1985: Chartered [[Galaxy Airlines Flight 203]] crashed after takeoff from Reno-Cannon International Airport en route to [[Minneapolis–Saint Paul|Minneapolis–St Paul]] Minnesota; 70 of the 71 people on board died.<ref name="asn19850121-0" />
* September 12, 1988: A Tame Ecuador L-188A Electra, registration HC-AZY, crashed near Lago Agrio Airport shortly after takeoff; six crew and one passenger died.<ref>{{ASN accident|19880912-1|title=ICAO Adrep Summary (#26)}}</ref>
* September 4, 1989: A Tame Ecuador L-188C Electra, registration HC-AZJ, crash-landed at Taura AFB with no fatalities.<ref>{{ASN accident|19890904-0|title=ICAO Adrep Summary 5/89 (#41)}}</ref>
* December 18, 1995: An overloaded 188C of Trans Service Airlift [[1995 Trans Service Airlift Electra crash|crashed near Cahungula, Angola]], with the loss of 141 of the 144 occupants. This is the deadliest aviation disaster involving the Lockheed L-188 Electra.<ref name="asn19951218-0" />
* February 8, 1999: An Air Karibu L-188 (9Q-CDI) {{Interlanguage link|1999 Air Karibu Electra crash|lt=crashed|de|Flugunfall einer Lockheed L-188 Electra der Air Karibu}} after takeoff from [[N'djili Airport]] killing all seven crew members. The aircraft had been overloaded, and the flight engineer was serving as a co-pilot because no other co-pilots were present. A ground mechanic took the flight engineer's place.<ref>{{Cite web |title=ASN Aircraft accident Lockheed L-188A Electra 9Q-CDI Kinshasa |url=https://asn.flightsafety.org/asndb/323802 |access-date=2023-09-18 |website=aviation-safety.net}}</ref>
* October 16, 2000: An Air Spray Lockheed L-188 Electra (Tanker #88 C-FQYB) was destroyed in a fire at Air Spray's maintenance facility in Red Deer, Alberta. Many other WW2 era planes were also consumed amidst the blaze.<ref>{{Cite web |title=ASN Aircraft accident Lockheed L-188 Electra C-FQYB Tanker 88 |url=https://asn.flightsafety.org/wikibase/323409}}</ref>
* July 16, 2003: An Air Spray Lockheed L-188 Electra (Tanker #86 C-GFQA) crashed and was destroyed near Cranbrook, British Columbia shortly after delivering the retardant load. Tanker 86 was seen to turn right initially, then entered a turn to the left. At 1221 MST, the Electra struck the terrain on the side of a steep ridge at about 3900 feet above sea level. The aircraft exploded on impact and the two pilots died. An intense post-crash fire consumed much of the wreckage and started a forest fire at the crash site and the surrounding area.<ref>{{Cadors-accident|2003P0829|Air Spray (Tanker #86 C-GFQA)}}</ref>

==Specifications (Model 188A)==
{{Aircraft specs
|ref=Lockheed Aircraft since 1913<ref name="Franc p398,3">Francillon 1982, pp. 398, 403.</ref>
|prime units?=kts
<!--
        General characteristics
-->
|genhide=

|crew=Three
|capacity=<br />
**98 passengers ''or''
**{{convert|33800|lb|kg|abbr=on}} payload
|length m=
|length ft=104
|length in=6
|span m=
|span ft=99
|span in=0
|height m=
|height ft=32
|height in=10
|wing area sqm=
|wing area sqft=1300
|airfoil=NACA 0014-1.10 root, NACA 0012-1.10 tip<ref name="jawa61p276">Taylor 1961, p. 276.</ref>
|aspect ratio=7.5:1<ref name="jawa61p276"/>
|empty weight kg=
|empty weight lb=57400
|gross weight kg=
|max takeoff weight lb=113000
|fuel capacity={{convert|5520|USgal|impgal L|abbr=on}} normal capacity<ref name="jawa61p276"/>
<!--
        Powerplant
-->
|eng1 number=4
|eng1 name=[[Allison T56|Allison 501-D13]]
|eng1 type=[[turboprop]] engines 
|eng1 kw=<!-- prop engines -->
|eng1 hp=<!-- prop engines -->
|eng1 shp=3750<!-- prop engines -->

|prop blade number=4<!-- propeller aircraft -->
|prop name=Aeroproducts or Hamilton Standard 
|prop dia m=<!-- propeller aircraft -->
|prop dia ft=13<!-- propeller aircraft -->
|prop dia in=6<!-- propeller aircraft -->
|prop dia note=<ref name="jawa61p276"/>

<!--
        Performance
-->
|perfhide=

|max speed kmh=
|max speed mph=448
|max speed kts=
|max speed note=at {{convert|12000|ft|m|abbr=on}}<!-- supersonic aircraft -->
|cruise speed kmh=<!-- if max speed unknown -->
|cruise speed mph=373<!-- if max speed unknown -->
|cruise speed kts=
|range km=
|range miles=2200
|range note=with maximum payload, {{convert|2770|mi|nmi mi km|abbr=on|order=out}}
|ceiling m=
|ceiling ft=28400
|climb rate ms=
|climb rate ftmin=1970
|more performance=

|avionics=
}}

==See also==
{{aircontent
|related =
* [[Lockheed P-3 Orion]]
* [[Lockheed CP-140 Aurora]]
* [[Lockheed P-7]]
|similar aircraft=
* [[Antonov An-10]]
* [[Antonov An-12]]
* [[Bristol Britannia]]
* [[Canadair CL-44]]
* [[Ilyushin Il-18]]
* [[Vickers Vanguard]]
* [[Vickers Viscount]] 
|lists=
|see also=
*[[Lockheed Model 10 Electra]], an unrelated piston-engine airliner sharing the same name
}}

==References==

===Notes===
{{Reflist|2|refs=
<ref name="Flight2011">''Flight International'' 2011, p. 22.</ref>
<ref name="Air Spray">{{cite web |url=http://www.airspray.com/flight-operations/ |archive-url=https://web.archive.org/web/20120309062745/http://www.airspray.com/flight-operations/ |title=The Air Spray fleet |website=Air Spray |date=January 2006 |archive-date=2012-03-09 |access-date=July 2, 2014}}</ref>
<ref name="Franc p396-7">Francillon 1982, pp. 396–397.</ref>
<ref name="Franc p398">Francillon 1982, p. 398.</ref>
<ref name="Allen155">Allen 1995, p. 155.</ref>
<ref name="Allen158">Allen 1995, p. 158.</ref>
<ref name="Allen159">Allen 1995, p. 159.</ref>
<ref name="Allen161">Allen 1995, p. 161.</ref>
<ref name="Lee">Lee, Stuart. [http://www.cs.clemson.edu/~steve/Spiro/electra2.html "Lockheed Electra: Killer Airliner (Part 2)."] {{webarchive|url=https://web.archive.org/web/20110926235203/http://www.cs.clemson.edu/~steve/Spiro/electra2.html |date=2011-09-26 }} ''cs.clemson.edu.'' Retrieved: 17 July 2010.</ref>
<ref name="inquest">[http://www.flightglobal.com/pdfarchive/view/1961/1961%20-%200225.html "Lessons of a turboprop inquest."] {{webarchive|url=https://web.archive.org/web/20121104081345/http://www.flightglobal.com/pdfarchive/view/1961/1961%20-%200225.html |date=2012-11-04 }} ''Flight'' 17 February 1961, p. 225.</ref>
<ref name="Allen1612">Allen 1995, pp. 161–162.</ref>
<ref name="Allen162">Allen 1995, p. 162.</ref>
<ref name="Brimson19093">Brimson 1984, pp. 190–193.</ref>
<ref name="Brimson16065">Brimson 1984, pp. 160–165.</ref>
<ref name="century">Rumerman, Judy. [http://www.centennialofflight.net/essay/Aerospace/Lockheed_in_Mid-Century/Aero15.htm "Lockheed in Mid-Century."] {{webarchive|url=https://web.archive.org/web/20140204043006/http://www.centennialofflight.net/essay/Aerospace/Lockheed_in_Mid-Century/Aero15.htm |date=2014-02-04 }} ''centennialofflight.net'', 2003. Retrieved: July 17, 2010.</ref>
<ref name="ASN">[https://asn.flightsafety.org/database/types/Lockheed-L-188-Electra/index "Lockheed Model 188 page."]  ''Aviation Safety Network.'' Retrieved: June 29, 2011.</ref>
<ref name="Diego">Martinez, Diego.  "[http://www.pagina12.com.ar/diario/elpais/1-131277-2009-09-06.html Aviones de la muerte (In Spanish)".] {{webarchive|url=https://web.archive.org/web/20100114133332/http://www.pagina12.com.ar/diario/elpais/1-131277-2009-09-06.html |date=2010-01-14 }} ''[[Pagina 12]]'', September 6, 2009. Retrieved on 6 March 2010.</ref>
<ref name="ara">[http://www.ara.mil.ar/archivos/imgs/AVION%20L-188%20ELECTRA%201_.jpg "Official site picture (Notice all the windows compared to the P-3 Orion).] {{webarchive|url=https://web.archive.org/web/20101206214001/http://www.ara.mil.ar/archivos/imgs/AVION%20L-188%20ELECTRA%201_.jpg |date=2010-12-06 }} ''Aviones de Exploración'', ''Amarda Argentina''. Retrieved: March 6, 2010.</ref>
<ref name="gaggero">Gaggero, Pablo J. "[http://www.lanacion.com.ar/nota.asp?nota_id=125769 La Armada renueva su flota aérea para el control del mar (In Spanish)."] {{webarchive|url=https://web.archive.org/web/20110605215313/http://www.lanacion.com.ar/nota.asp?nota_id=125769 |date=2011-06-05 }} ''[[La Nación]]'', January 25, 1999. Retrieved: March 6, 2010.</ref>
<ref name="flight1959">''Flight'', February 13, 1959, p. 231.</ref>
<!--ref name="TC reg">[http://wwwapps2.tc.gc.ca/Saf-Sec-Sur/2/ccarcs/aspscripts/en/quicksearch.asp "Transport Canada civil aircraft register."] ''tc.gc.ca.'' Retrieved: May 2, 2013.</ref-->

<!-- <ref name="Conair">[http://www.conair.ca/aircraft "Aircraft"] {{webarchive|url=https://web.archive.org/web/20130528095707/http://www.conair.ca/aircraft |date=2013-05-28 }} ''Conair Group''. Retrieved: January 4, 2014</ref> -->

<ref name="N125US">[http://www.airliners.net/search/photo.search?airlinesearch=Shillelaghs&distinct_entry=true "Shillelagh Travel Club: L188C N125US."] ''Airliners.net.'' Retrieved: July 17, 2010.</ref>
<ref name="airdisaster">{{usurped|1=[https://web.archive.org/web/20141222014412/http://www.airdisaster.com/cgi-bin/view_details.cgi?date=09291959 "Accident Synopsis: 09291959."]}} ''AirDisaster.Com.'' Retrieved: July 17, 2010.</ref>
<ref name="aar77-06">NTSB report # AAR-77-06.</ref>
<ref name="asn19590203-1">{{ASN accident|id=19590203-1|title="The February 3, 1959 accident of Lockheed L-188A Electra N6101A at New York-La Guardia Airport, NY (LGA)."|accessdate=July 17, 2010}}</ref>
<ref name="asn19590929-0">{{ASN accident|id=19590929-0|title="The September 29, 1959 accident of Lockheed L-188A Electra N9705C at Buffalo, TX."|accessdate=July 17, 2010}}</ref>
<ref name="asn19600317-0">{{ASN accident|id=19600317-0|title="The March 17, 1960 accident of Lockheed L-188C Electra N121US at Cannelton, IN."|accessdate=July 17, 2010}}</ref>
<ref name="asn19601004-0">{{ASN accident|id=19601004-0|title="The October 4, 1960 accident of Lockheed L-188A Electra N5533 at Boston-Logan International Airport, MA (BOS)."|accessdate=July 17, 2010}}</ref>
<ref name="asn19610612-1">{{ASN accident|id=19610612-1|title="The June 12, 1961 accident of Lockheed L-188C Electra PH-LLM at Cairo International Airport (CAI)."|accessdate=July 17, 2010}}</ref>
<ref name="asn19610917-3">{{ASN accident|id=19610917-3|title="The September 17, 1961 accident of Lockheed L-188C Electra N137US at Chicago-O'Hare International Airport, IL (ORD)."|accessdate=July 17, 2010}}</ref>
<ref name="asn19670216-1">{{ASN accident|id=19670216-1|title="The February 16, 1967 accident of Lockheed L-188C Electra PK-GLB at Manado-Sam Ratulangi Airport (MDC)."|accessdate=July 17, 2010}}</ref>
<ref name="asn19680503-0">{{ASN accident|id=19680503-0|title="The May 3, 1968 accident of Lockheed L-188A Electra N9707C at Dawson, TX."|accessdate=July 16, 2010}}</ref>
<ref name="asn19700809-0">{{ASN accident|id=19700809-0|title="The August 9, 1970 accident of Lockheed L-188A Electra OB-R-939 at Cuzco Airport (CUZ)."|accessdate=July 17, 2010}}</ref>
<ref name="asn19711224-0">{{ASN accident|id=19711224-0|title="The December 24, 1971 accident of Lockheed L-188A Electra OB-R-941 at Puerto Inca."|accessdate=July 17, 2010}}</ref>
<ref name="asn19760604-0">{{ASN accident|id=19760604-0|title="The June 4, 1976 accident of Lockheed L-188A Electra RP-C1061 at Guam-Agana NAS (NGM)."|accessdate=June 29, 2011}}</ref>
<ref name="asn19850121-0">{{ASN accident|id=19850121-0|title="The January 21, 1985 accident of Lockheed L-188A Electra N5532 at Reno/Tahoe International Airport, NV (RNO)."|accessdate=July 16, 2010}}</ref>
<ref name="asn19951218-0">{{ASN accident|id=19951218-0|title="The December 18, 1995 accident of Lockheed L-188C Electra 9Q-CRR at Cahungula."|accessdate=July 17, 2010}}</ref>
<ref name="prop">Eastwood 1990, pp. 313–324.</ref>
}}

===Bibliography===
{{Refbegin}}
* "2010 World Airliner Census". ''Flight International'', August 24–30, 2010, pp.&nbsp;29–49.
* [http://www.flightglobal.com/airspace/media/reports_pdf/emptys/87145/world-airliner-census-2011.pdf "2011 World Airliner Census". ''Flight International'']
* [http://www.flightglobal.com/pdfarchive/view/1959/1959%20-%200460.html "Air Commerce: The New York Tragedy".] ''[[Flight International|Flight]]'', February 13, 1959, p.&nbsp;231.
* Allen, Eric. ''Airliners in Australian Service, Volume 1.'' Weston Creek ACT: Aerospace Publications, 1995. {{ISBN|1-875671-14-5}}.
* Brimson, Samuel. ''Flying the Royal Mail: The History of Australia's Airlines''. Sydney, Australia: Dreamweaver Books, 1984. {{ISBN|0-949825-05-0}}.
* Eastwood, Tony; Roach, John. ''Turbo Prop Airliner Production List.'' West Drayton, Middlesex, UK: The Aviation Hobby Shop, 1990. {{ISBN|0-907178-32-4}}.
* {{cite book |last=Endres |first=Günter G. |title=World Airline Fleets 1979 |location=Hounslow, UK |publisher=Airline Publications and Sales Ltd. |year=1979 |isbn=0-905117-53-0}}.
* Francillon, René J. ''Lockheed Aircraft since 1913''. London: Putnam, 1982. {{ISBN|0-370-30329-6}}.
* Hagby, Kay. [http://www.nb.no/nbsok/nb/e38c175e6746f06628c09886091e4707 ''Fra Nielsen & Winther til Boeing 747''  (in Norwegian).]  Drammen, Norway. Hagby, 1998.  {{ISBN|82-994752-0-1}}.
* {{cite book |last1=Mak |first1=Ron |title=Lockheed L-188 Electra |series=Historic Commercial Aircraft Series, Vol 14 |date=2023 |publisher=Key Publishing |location=Stamford, Lincs, UK |isbn=9781802824865 |url={{GBurl|449czwEACAAJ}}}}
* Siegrist, Martin. "Bolivian Air Power — Seventy Years On". ''[[Air International]]'', Vol. 33, No. 4, October 1987. pp.&nbsp;170–176, 194. {{ISSN|0306-5634}}.
* {{cite book |last=Sherlock |first=Jay L. |title=Lockheed L-188 Electra and Orion |year=1977 |location=Tonbridge, Kent, UK |publisher=Air Britain (Historians) Ltd. |isbn=0-85130-058-8}}
*{{cite magazine |magazine=[[Aviation Week]] |last=Sweeney |first=Richard |date= |title=Aviation Week Pilot Report (Part I): Electra Shows High Degree of Flyability |url=https://archive.org/details/Aviation_Week_1958-12-22/page/n28 |publication-date=December 22, 1958 |pages=56, 59, 62, 63}}
* {{cite magazine |magazine=[[Aviation Week]] |last=Sweeney |first=Richard |date= |title=Aviation Week Pilot Report (Part II): Electra's Turboprops Aid Short Landings |url=https://archive.org/details/Aviation_Week_1958-12-29/page/n26 |publication-date=December 29, 1958 |pages=53–57}}
* [[John W. R. Taylor|Taylor, John W. R.]] ''Jane's All the World's Aircraft 1961–62''. London: Sampson Low, Marston & Company, Ltd., 1961.
{{Refend}}

== Further reading ==
* {{cite book |last=Nuñez Padin |first=Jorge |date=2006 |title=Lockheed L-188 Electra |series=Serie Aeronaval |volume=Nº20 |language=es, en |url=http://www.fuerzasaeronavales.com/?product=libro-lockheed-l-188-electra-serie-aeronaval-no20 |access-date=May 6, 2014 |url-status=dead |archive-url=https://web.archive.org/web/20140506170129/http://www.fuerzasaeronavales.com/?product=libro-lockheed-l-188-electra-serie-aeronaval-no20 |archive-date=May 6, 2014}}

==External links==
{{Commons category|Lockheed L-188 Electra}}
* [https://web.archive.org/web/20050322072631/http://home.arcor.de/ulrichhoppe/ELECTRA.HTM Information, Pictures and Production List]
* [https://web.archive.org/web/20040922020534/http://www.adastron.com/lockheed/electra/leap.htm Engineering Summary of Propeller Whirl on the Electra]
* [http://www.waymarking.com/waymarks/WM63FJ_ELECTRA_AIR_CRASH_SITE_MEMORIAL_MILLSTONE_INDIANA Kiwanis Electra Memorial website]
* [https://web.archive.org/web/20070704134033/http://amelia.db.erau.edu/reports/ntsb/aar/AAR69-03.pdf NTSB Report on 1968 Braniff N9707C Crash]
* [http://www.flightglobal.com/pdfarchive/view/1955/1955%20-%201595.html "Lockheed Electra"] a 1955 ''Flight'' article

{{Lockheed}}
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