View source for Brabham BT24

{{Short description|Formula One racing car}}
{{Use British English|date=May 2011}}
{{Use dmy dates|date=July 2023}}
{{refimprove|date=January 2009}}
{{Racing car
| Car_name = Brabham BT24
| Image = [[Image:Brabham BT24 1967.jpg|250px]]
| Category = [[Formula One]]
| Constructor = [[Brabham|Motor Racing Developments]]
| Designer = [[Ron Tauranac]]
| Predecessor = [[Brabham BT20|BT20]]
| Successor = [[Brabham BT26|BT26]]
| Team = [[Brabham|Brabham Racing Organisation]]
| Drivers = {{flagicon|AUS}} [[Jack Brabham]]<br>{{flagicon|NZL}} [[Denny Hulme]]<br>{{flagicon|AUT}} [[Jochen Rindt]]<br>{{flagicon|USA}} [[Dan Gurney]]
| Technical ref = <ref>[http://www.statsf1.com/es/brabham-bt24.aspx Brabham BT24 @ StatsF1]</ref><ref>[http://www.ultimatecarpage.com/car/2850/Brabham-BT24-Repco.html Brabham BT24 @ Ultimatecarpage]</ref>
| Chassis = [[Fibreglass]] body on tubular steel [[spaceframe]]
| Front suspension = [[Double wishbone suspension|Double wishbones]], coil [[Spring (device)|springs]] over [[shock absorber|dampers]], [[Sway bar|anti-roll bar]]
| Rear suspension = [[Double wishbone suspension|Double wishbones]], twin [[Radius rod|radius arms]], coil [[Spring (device)|springs]] over [[shock absorber|dampers]], [[Sway bar|anti-roll bar]]
| Engine name = [[Repco]] 740,
| Capacity = {{convert|2994|cc|cuin|1|abbr=on}},
| Configuration = 90° [[V8 engine|V8]],
| Turbo/NA = [[Naturally-aspirated engine|NA]],
| Engine position = [[mid-engine]], [[longitudinal engine|longitudinally mounted]]
| Gearbox name = [[Hewland]] DG 300,
| Gears = 5-speed
| Type = [[Manual transmission|manual]],
| Differential = [[ZF Friedrichshafen|ZF]] [[Differential (mechanics)|differential]]
| Fuel = [[Esso]]
| Tyres = [[Goodyear Tire and Rubber Company|Goodyear]]
| Debut = [[1967 Belgian Grand Prix]]
| Races = 21
| Wins = 3
| Cons_champ = 1 <small>({{F1|1967}})</small>
| Drivers_champ = 1 <small>({{F1|1967}})</small><br>[[Denny Hulme]]
| Poles = 0
| Fastest_laps = 1
| Podiums = 12
}}

The '''Brabham BT24''' was a [[Formula One]] [[racing car]] design. It was one of three cars used by the Brabham racing team during their championship-winning [[1967 Formula One season]]. Only three chassis were ever raced.

==Concept==

[[Image:2006FOS 1967BrabhamBT24.jpg|thumb|left|250px|a Brabham BT24 in action during the 2006 Goodwood Festival of Speed]]
Designed by Ron Tauranac, the BT24 was based on the [[Brabham BT23|BT23]] Formula Two car and was notably light and compact. Tauranac continued to adhere to the space frame chassis, alone of Formula One designers. The BT24 was designed to take the new [[Repco]] 740 V-8 engine, which was an all new design entirely built by Repco, unlike the previous years Oldsmobile based 620 series engines. Tauranac had requested that Repco build the engine with in vee exhausts to reduce frontal area and ease the problem of threading exhaust pipes through the rear suspension links. Like the [[Lotus 49]] the BT24 made its first appearance during practice for the [[1967 Dutch Grand Prix|Dutch Grand Prix]], and in comparison the Brabham seemed almost obsolete, but as the season progressed, its better reliability made it the tortoise to Lotus's hare. Brabham decided to run its proven 1966 cars in the Dutch race (although by this time Jack Brabham's [[Brabham BT19|BT19]] was equipped with the centre exhaust 740 engine) and the BT24 made its race debut one race later at the [[1967 Belgian Grand Prix|Belgian Grand Prix]].

With reigning champion [[Jack Brabham]] and [[Denny Hulme]] at the wheel, the BT24 took 3 wins to [[Jim Clark]]'s 4 in the Lotus, but with six 2nd places, two 3rds, a 4th and a 5th the Brabham team comfortably took the Constructors' Championship, while Hulme pipped team-owner Brabham to the Drivers' Championship by 5 points.

In addition to its three championship race wins the BT24 also won the prestigious 1967 [[Oulton Park International Gold Cup|International Gold Cup]] at Oulton Park in the hands of Jack Brabham.

==Later years==
The original two chassis were raced by Brabham and Rindt in the season opening [[1968 South African Grand Prix]], but with the [[Brabham BT26|BT26]] ready in time for the next race, these two chassis were sold to local teams and left in South Africa, with [[Sam Tingle]] and [[Basil van Rooyen]] finishing third and fourth in that year's [[South African Formula One Championship]]. Sam Tingle later took part in the [[1969 South African Grand Prix]], the last World Championship Formula One event for a standard BT24, and continued to race his chassis with some success in local events as late as January 1970, while van Rooyen's car was also raced at various times by Gordon Henderson and Ivor Robertson.

A third BT24 chassis had been built at the end of 1967 but was only used in three races by the Brabham team, twice for Rindt and once for a one-off appearance by [[Dan Gurney]]. [[Kurt Ahrens Jr.]] hired the car from Brabham and entered the [[1968 German Grand Prix]], before it was acquired by [[Frank Williams (Formula One)|Frank Williams]] and modified to take BT26-style wings and a 2.5 litre Cosworth DVW V8 for the 1969 [[Tasman Series]]. [[Piers Courage]] drove in all seven races, winning at Teretonga Park in New Zealand and finishing second, third and fourth with three retirements in the other races to finish third in the final points standings. 

Self-entrant [[Silvio Moser]] then acquired the car, having arranged for Williams to switch the engine for a 1968-spec 3.0 litre [[Cosworth DFV|DFV]], as well adding extra fuel tanks on account of the thirstier engine. Silvio raced this unique car in 7 of the 11 rounds of the [[1969 Formula One season]], his best result coming at Watkins Glen where he finished 6th, and he also used the car in the International Gold Cup and two rounds of the European Hillclimb Championship.

==Aftermath and legacy==
In 1969, [[Hot Wheels]] released a 1/64 die-cast model of the car under the name "Brabham Repco F1" in the Grand Prix series. It loosely resembles this car.

The Brabham BT24 was featured as a playable vehicle in ''[[Forza Motorsport]]''.

==Complete Formula One World Championship results==

([[:Template:F1 driver results legend 2|key]]) (results in bold indicate pole position; results in italics indicate fastest lap)
{| class="wikitable" style="text-align:center; font-size:95%"
! Year
! Entrant
! Engine
! Tyres
! Driver
! 1
! 2
! 3
! 4
! 5
! 6
! 7
! 8
! 9
! 10
! 11
! 12
! Points{{smallsup|†}}
! WCC{{smallsup|†}}
|-
!rowspan=3| {{F1|1967}}
|rowspan=3| [[Brabham|Brabham Racing Organisation]]
|rowspan=3| [[Repco]] [[Repco#Four world titles for the single-camshaft 16-valve|740 3.0 V8]]
|rowspan=3| {{Goodyear}}
|
| [[1967 South African Grand Prix|RSA]]
| [[1967 Monaco Grand Prix|MON]]
| [[1967 Dutch Grand Prix|NED]]
| [[1967 Belgian Grand Prix|BEL]]
| [[1967 French Grand Prix|FRA]]
| [[1967 British Grand Prix|GBR]]
| [[1967 German Grand Prix|GER]]
| [[1967 Canadian Grand Prix|CAN]]
| [[1967 Italian Grand Prix|ITA]]
| [[1967 United States Grand Prix|USA]]
| [[1967 Mexican Grand Prix|MEX]]
|
|rowspan=3 style="background:#ffffbf;"| {{nowrap|'''63 (67)*'''}}
|rowspan=3 style="background:#ffffbf;"| '''1st'''
|-
| [[Jack Brabham]]
|
|
|
|style="background:#EFCFFF;"| Ret
|style="background:#ffffbf;"| 1
|style="background:#dfffdf;"| 4
|style="background:#dfdfdf;"| 2
|style="background:#ffffbf;"| 1
|style="background:#dfdfdf;"| 2
|style="background:#dfffdf;"| 5
|style="background:#dfdfdf;"| 2
|
|-
| [[Denny Hulme]]
|
|
|
|
|style="background:#dfdfdf;"| 2
|style="background:#dfdfdf;"| ''2''
|style="background:#ffffbf;"| 1
|style="background:#dfdfdf;"| 2
|style="background:#EFCFFF;"| Ret
|style="background:#ffdf9f;"| 3
|style="background:#ffdf9f;"| 3
|
|-
!rowspan=5| {{F1|1968}}
|rowspan=4| [[Brabham|Brabham Racing Organisation]]
|rowspan=4| [[Repco]] [[Repco#Four world titles for the single-camshaft 16-valve|740 3.0 V8]]
|rowspan=4| {{Goodyear}}
|
| [[1968 South African Grand Prix|RSA]]
| [[1968 Spanish Grand Prix|ESP]]
| [[1968 Monaco Grand Prix|MON]]
| [[1968 Belgian Grand Prix|BEL]]
| [[1968 Dutch Grand Prix|NED]]
| [[1968 French Grand Prix|FRA]]
| [[1968 British Grand Prix|GBR]]
| [[1968 German Grand Prix|GER]]
| [[1968 Italian Grand Prix|ITA]]
| [[1968 Canadian Grand Prix|CAN]]
| [[1968 United States Grand Prix|USA]]
| [[1968 Mexican Grand Prix|MEX]]
!rowspan=5| 10**
!rowspan=5| 8th
|-
| [[Jack Brabham]]
| style="background:#efcfff;"| Ret
|
|
|
|
|
|
|
|
|
|
|
|-
| [[Jochen Rindt]]
|style="background:#ffdf9f;"| 3
|style="background:#EFCFFF;"| Ret
|style="background:#EFCFFF;"| Ret
|
|
|
|
|
|
|
|
|
|-
| [[Dan Gurney]]
|
|
|
|
|style="background:#EFCFFF;"| Ret
|
|
|
|
|
|
|
|-
| [[Kurt Ahrens Jr.|Caltex Racing Team]]
| [[Repco]] [[Repco#Four world titles for the single-camshaft 16-valve|740 3.0 V8]]
| {{Dunlop}}
| [[Kurt Ahrens Jr.]]
|
|
|
|
|
|
|
|style="background:#cfcfff"| 12
|
|
|
|
|-
!rowspan=3| {{F1|1969}}
|rowspan=2| [[Team Gunston]]
|rowspan=2| [[Repco#Repco V8 engine|Repco 620 3.0 V8]]
|rowspan=2| {{Firestone}}
|
| [[1969 South African Grand Prix|RSA]]
| [[1969 Spanish Grand Prix|ESP]]
| [[1969 Monaco Grand Prix|MON]]
| [[1969 Dutch Grand Prix|NED]]
| [[1969 French Grand Prix|FRA]]
| [[1969 British Grand Prix|GBR]]
| [[1969 German Grand Prix|GER]]
| [[1969 Italian Grand Prix|ITA]]
| [[1969 Canadian Grand Prix|CAN]]
| [[1969 United States Grand Prix|USA]]
| [[1969 Mexican Grand Prix|MEX]]
|
!rowspan=2| 0
!rowspan=2| NC
|-
| [[Sam Tingle]]
|style="background:#CFCFFF;"| 8
|
|
|
|
|
|
|
|
|
|
|
|-
| [[Silvio Moser|Silvio Moser Racing Team]]
| [[Cosworth DFV|Ford Cosworth DFV]] 3.0 [[V8 engine|V8]]
| {{Goodyear}}
| [[Silvio Moser]]
|
|
|style="background:#EFCFFF;"| Ret
|style="background:#EFCFFF;"| Ret
|style="background:#cfcfff;"| 7
|
|
|style="background:#EFCFFF;"| Ret
|style="background:#EFCFFF;"| Ret
|style="background:#dfffdf;"| 6
|style="background:#cfcfff;"| 11
|
|style="background:#dfdfdf;"| {{nowrap|'''49 (51)'''{{sup|^}}}}
|style="background:#dfdfdf;"| '''2nd'''
|-
!colspan="19"|{{center|{{small|Source:<ref>{{cite book|last=Small|first=Steve|title=The Guinness Complete Grand Prix Who's Who|date=1994|publisher=Guinness|pages=14, 77, 171, 192, 260, 319 and 382|isbn=0851127029}}</ref>}}}}
|}

{{sup|†}} Points were awarded on a 9-6-4-3-2-1 basis to the first six finishers at each round, but only the best placed car for each make was eligible to score points. The best five results from the first six rounds and the best four results from the last five rounds were retained in 1967 and 1969, and five from the first six and five from the last six in 1968.<br>
<nowiki>*</nowiki> 18 points in 1967 were scored using the [[Brabham BT19|BT19]] and [[Brabham BT20|BT20]] models.<br>
<nowiki>**</nowiki> Only 4 points were scored in 1968 using the BT24.<br>
{{sup|^}} All Brabham-Ford WCC points in 1969 were scored by [[Brabham BT26]] variants.

==References==
{{reflist}}

{{Brabham|BT24}}
{{F1 cars 1967}}
{{F1 cars 1968}}
{{F1 cars 1969}}

[[Category:Brabham Formula One cars]]
[[Category:Tasman Series cars]]
[[Category:Formula One championship–winning cars]]