View source for SIAI-Marchetti SM.1019

{{Short description|Italian STOL liaison monoplane by SIAI-Marchetti}}
{|{{Infobox aircraft begin
 |name = SM.1019
 |image = File:Siai-marchetti SM 1019 (N394RV).jpg
 |caption =
}}{{Infobox aircraft type
 |type = STOL liaison monoplane
 |national origin= United States / Italy
 |manufacturer = [[SIAI-Marchetti]]
 |first flight = 24 May 1969
 |introduced = 1976
 |retired =
 |status =
 |primary user = [[Italian Army]]
 |more users = [[Somali Air Force]] 
 |produced =
 |number built = 86
 |developed from= [[Cessna O-1 Bird Dog]]
}}
|}

The '''SIAI-Marchetti SM.1019''' is an Italian STOL liaison monoplane built by [[SIAI-Marchetti]] for the [[Italian Army]]. It is a turboprop-powered derivative of the [[Cessna O-1 Bird Dog]].

==Development==
[[File:SIAI-Marchetti SM-1019A E.I. 1.jpg|thumb|The SM.1019A in the colours of the Italian Army]]
[[File:SIAI-MarchettiSM1019.jpg|thumb|SIAI-Marchetti SM.1019]]

To meet an Italian Army requirement for a short take-off liaison aircraft, SIAI-Marchetti modified the design of the Cessna 305A/O-1 Bird Dog with a new turboprop engine and a revised tail unit. The prototype first flew on 24 May 1969 powered by a 317&nbsp;hp (236&nbsp;kW) [[Allison 250]]-B15C turboprop engine. It was evaluated against the [[Aermacchi AM.3]] and was successful and won a production order for 80 aircraft.

<!-- ==Operational history== -->

==Variants==
;SM.1019
:Prototype with 317hp (236kW) [[Allison 250]]-B15C turboprop engine, one built
;SM.1019A 
:Production with 317hp (236kW) Allison 250-B15G 400hp turboprop engine derated to 317hp, 81 built
;SM.1019B 
:Production variant with 400hp (298kW) Allison 250-B17B turboprop engine, designated '''SM.1019E.I''' by the Italian Army, four built

==Operators==
;{{ITA}}
* [[Italian Army]]
;{{Flag|Somalia}} 
* [[Somali Air Force]] – 6 in 1981, all retired.

==Accidents and incidents==
On 24 July 2021, former [[US Navy]] [[Grumman F-14 Tomcat|F-14]] pilot [[Dale Snodgrass|Dale "Snort" Snodgrass]] fatally crashed in an SM.1019B with the registration N28U at [[Lewiston–Nez Perce County Airport]] in [[Lewiston, Idaho]].<ref>{{Cite web|last=Leone|first=Dario|date=2021-07-25|title=Dale "Snort" Snodgrass, legendary US Navy F-14 Tomcat pilot, killed in the crash of a SIAI-Marchetti SM.1019|url=https://theaviationgeekclub.com/dale-snort-snodgrass-legendary-us-navy-f-14-tomcat-pilot-killed-in-in-the-crash-of-a-siai-marchetti-sm-1019/|access-date=2021-07-26|website=The Aviation Geek Club|language=en-GB}}</ref><ref>{{Cite web|date=2021-07-25|title=Legendary F-14 Pilot Dale 'Snort' Snodgrass Dies In A Tragic Plane Crash|url=https://theaviationist.com/2021/07/25/dale-snort-snodgrass/|access-date=2021-07-26|website=The Aviationist|language=en-US}}</ref> The probable cause of the accident was, according to the NTSB report,  failure to remove the flight control lock, which immobilized flight control surfaces.<ref>{{Cite web|date=2022-07-06|title=Snodgrass SIAI-Marchetti SM-1019B NTSB Final Report|url=https://s30121.pcdn.co/wp-content/uploads/2022/07/Snodgrass-SIAI-Marchetti-SM-1019B-NTSB-Final-Report.pdf|access-date=2023-08-17|website=AvWeb|language=en-us}}</ref>

==Specifications (SM.1019A)==
{{Aircraft specs
|ref=Jane's All The World's Aircraft 1976–77<ref name="Janes 76 p117-8">Taylor 1976, pp. 117–118.</ref>
|prime units?=met
<!--
        General characteristics
-->
|crew=2
|length m=8.52
|span m=10.972
|height m=2.86
|wing area sqm=16.16
|aspect ratio=7.44:1
|airfoil=[[NACA airfoil|NACA 2412]]
|empty weight kg=690
|gross weight kg=1300
|max takeoff weight kg=1450
|fuel capacity={{cvt|320|L|USgal impgal}} in four wing tanks; Oil capacity {{cvt|8|L|USgal impgal}}
|more general=
<!--
        Powerplant
-->
|eng1 number=1
|eng1 name=[[Allison Model 250-B17B]]
|eng1 type= [[turboprop]] engine
|eng1 kw=298

|prop blade number=3
|prop name=[[Hartzell Propeller|Hartzell]] HC-B3TF-7/T10173-11R constant-speed reversible pitch metal propeller
|prop dia m=<!-- propeller aircraft -->
|prop dia ft=<!-- propeller aircraft -->
|prop dia in=<!-- propeller aircraft -->
|prop dia note=
<!--
        Performance
-->
|max speed kmh=
|max speed mach=<!-- supersonic aircraft -->
|cruise speed kmh=296
|cruise speed note= max at sea level<br/>
:::{{cvt|300|km/h|mph kn}} max cruise speed at {{cvt|2500|m}}
:::{{cvt|281|km/h|mph kn}} 75% power cruise speed at {{cvt|2500|m}}
|stall speed kmh=98
|stall speed note= flaps up<br/>
:::{{cvt|70|km/h|mph kn}} flaps extended
|never exceed speed kmh=313
|minimum control speed kmh=
|range km=925
|range note= at sea level
:::{{cvt|1090|km|mi nmi}}
|combat range km=
|ferry range km=
|endurance=5 hours 45 minutes at sea level; 6 hours 40 minutes at {{cvt|3000|m}}
|ceiling m=7620
|g limits=<!-- aerobatic -->
|roll rate=<!-- aerobatic -->
|climb rate ms=9.1833
|time to altitude=
|wing loading kg/m2=80.4
|wing loading note= at {{cvt|1300|kg}} AUW; {{cvt|89.7|kg/m2}} maximum
|fuel consumption kg/km=
|power/mass={{cvt|4.36|kg/kW}} at {{cvt|1300|kg}} AUW; {{cvt|4.87|kg/kW}}
|thrust/weight=

|more performance=<br/>
*'''Take-off run:''' {{cvt|112|m}}
*'''Landing run:''' {{cvt|91.5|m}}
*'''Take-off run to {{cvt|15|m}}:''' {{cvt|220|m}}
*'''Landing run from {{cvt|15|m}}:''' {{cvt|220|m}}
<!--
        Armament
-->
|guns= 
|bombs= 
|rockets= 
|missiles= 
|hardpoints=
|hardpoint capacity=
|hardpoint rockets=
|hardpoint missiles=
|hardpoint bombs=
|hardpoint other=

|avionics=
}}

==See also==
{{Portal|Italy|Aviation}}
{{Aircontent
|see also=
|related=
* [[Cessna O-1 Bird Dog]]
|similar aircraft=
* [[Aermacchi AM.3]]
* [[UTVA-66]]
|lists=
}}

==References==
{{reflist}}

* {{cite book|title=The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985)|publisher=Orbis Publishing|pages=2856}}
* {{cite book|last=Taylor|first=John W.R.|title=Jane's All the World's Aircraft 1976–77|year=1976|publisher=Jane's Yearbooks|location=London|isbn=0-354-00538-3}} 
* {{cite book|last=Taylor|first=Michael J. H.|title=Jane's Encyclopedia of Aviation|year=1989|publisher=Studio Editions|location=London}}

==External links==
{{Commons category-inline|SIAI-Marchetti SM.1019}}

{{Savoia-Marchetti aircraft}}
{{Cessna 140 family}}
{{Italian Army liaison aircraft designations}}

[[Category:1960s Italian military utility aircraft]]
[[Category:SIAI Marchetti aircraft|SM.1019]]
[[Category:Single-engined tractor aircraft]]
[[Category:Aircraft first flown in 1969]]
[[Category:STOL aircraft]]
[[Category:Single-engined turboprop aircraft]]