Brabham BT52
 A Brabham BT52 at the2013 Goodwood Festival of Speed. | |||||||||
| Category | Formula One | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Constructor | Brabham | ||||||||
| Designer(s) | Gordon Murray(Technical Director) David North (Chief Designer) Paul Rosche(Chief Engine Designer (BMW)) | ||||||||
| Predecessor | BT50 | ||||||||
| Successor | BT53 | ||||||||
| Technical specifications[1][2] [3] | |||||||||
| Chassis | Carbon fibremonocoquewith rear subframe | ||||||||
| Suspension (front) | Double wishbones, push-rod operated coil springs over dampers | ||||||||
| Suspension (rear) | Double wishbones, push-rod operated coil springs over dampers | ||||||||
| Axle track | BT52: Front: 1,778 mm (70.0 in) Rear: 1,657 mm (65.2 in) BT52B: Front: 1,753 mm (69.0 in) Rear: 1,651 mm (65.0 in) | ||||||||
| Wheelbase | BT52: 2,860 mm (113 in) BT52B: 2,845 mm (112.0 in) | ||||||||
| Engine | BMW M12/13,1,499 cc (91.5 cu in),Straight 4,turbo,mid-engine,longitudinally mounted | ||||||||
| Transmission | Brabham/Hewland5/6-speedmanualWeismann Differential | ||||||||
| Weight | 540 kg (1,190 lb) | ||||||||
| Fuel | Castrol | ||||||||
| Tyres | Michelin | ||||||||
| Competition history | |||||||||
| Notable entrants | Fila SportBrabhamBMW | ||||||||
| Notable drivers | 5. Nelson Piquet6.  Riccardo Patrese | ||||||||
| Debut | 1983 Brazilian Grand Prix | ||||||||
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| Constructors' Championships | 0 | ||||||||
| Drivers' Championships | 1 (1983,Nelson Piquet) | ||||||||
TheBrabham BT52was aFormula Onecar designed for theBrabhamteam by longtime Brabham designerGordon Murrayfor the1983season. The car ran onMichelintyres and was powered by theBMW M12/13 four-cylinderturbochargedengine, which in 1983 produced a maximum power of approximately 1,280 bhp (950 kW) in qualifying trim, detuned to around 850 bhp (630 kW) for the proper races. Its drivers were1981World ChampionNelson PiquetandRiccardo Patrese.[4]
History
[edit]After theground effectcars were banned at the end of the previous season, the FIA mandated that all F1 cars be designed with flat undersides for safety reasons. With just six weeks until the opening race inBrazil,this left Brabham with three fully built BT51s ready to go that were now useless, so Murray started from scratch and he designed the BT52. The previously crucial sidepods were now generating lift rather than suction and so the BT52 had short, angular sidepods to keep lift at a minimum. Murray also took a gamble and moved approximately 70% of the car's weight to the rear in an effort to obtain more traction. The car featured a distinctive dart-shaped profile and oversized rear wing in an effort to claw back as much downforce as possible, while the monocoque was built from aluminium and carbon fibre composite to keep weight as low as possible. The 1983 season saw refuelling stops reintroduced after successful experiments in1982so the BT52's fuel system was designed with this in mind and had a small fuel tank positioned high up behind the driver.[5]
The car was easy to drive and Piquet used it to good effect that season. Fighting withAlain Prostin theRenaultandRené ArnouxofFerrari,it seemed he would lose out on the title after a run of mid season bad luck. After German companyWintershalldeveloped a special batch of fuel and further development to the car was done, he became the first driver to win the world championship with a turbo engine after winning three races, Brazil (Round 1),Italy(Round 13) andEuropean(Round 14), and scoring consistently with three 2nd and two 3rd places. Patrese on the other hand seemed to corner the market on Brabham's bad luck and while often as quick or quicker than Piquet (including leading theSan Marino Grand Prixbefore crashing out with only six laps remaining, and grabbing pole atMonza) he didn't score a point until his third place finish in Round 10 at theGerman Grand Prix.His only other points finish being his win at the season endingSouth African Grand PrixatKyalami.[6]
With Piquet winning his second World Drivers' Championship with 59 points, and Patrese finishing ninth on 13 points, Brabham finished third in the Constructors' Championship with 72 points, 7 behind second placed Renault and 17 behind winners Ferrari. The BT52 was updated after theCanadian Grand Prixto theBT52Band proceeded to win three of the remaining seven races of the season. The two variants of the chassis can easily be distinguished as the colour scheme was also reversed at the same time. A further update came later in the season when Brabham adopted the Ferrari style winglets on the rear wing in order to generate more downforce. The BT52 was replaced for the1984Formula One season by theBrabham BT53.[7]
Gallery
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Complete Formula One World Championship results
[edit](key) (Races inboldindicate pole position; races initalicsindicate fastest lap)
| Year | Entrant | Chassis | Engine | Drivers | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Pts | WCC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1983 | Fila SportBrabhamBMW | BMW M12/13 S4tc |
BRA | USW | FRA | SMR | MON | BEL | DET | CAN | GBR | GER | AUT | NED | ITA | EUR | RSA | 72 | 3rd | ||
| BT52 | Nelson Piquet | 1 | Ret | 2 | Ret | 2 | 4 | 4 | Ret | ||||||||||||
| BT52B | 2 | 13 | 3 | Ret | 1 | 1 | 3 | ||||||||||||||
| BT52 | Riccardo Patrese | Ret | 10 | Ret | Ret | Ret | Ret | Ret | Ret | ||||||||||||
| BT52B | Ret | 3 | Ret | 9 | Ret | 7 | 1 |
References
[edit]- ^"STATS F1 • Brabham BT52".Statsf1.Retrieved23 August2010.
- ^"STATS F1 • Brabham BT52B".Statsf1.Retrieved23 August2010.
- ^"Brabham F1 Racecars Weismann Transaxles • Brabham BT52B".weismann.net.Archived fromthe originalon 7 April 2010.Retrieved3 November2010.
- ^Boeriu, Horatiu (24 January 2017)."Watch BMW Build The Most Powerful F1 Engine Ever - BT52 1,280 horsepower".BMW Blog.Retrieved13 December2019.
- ^"TECH TUESDAY: The ground-breaking Brabham BT52".formula1.Retrieved13 December2019.
- ^"1983 Brabham BT52 BMW - Images, Specifications and Information".Ultimatecarpage.Retrieved13 December2019.
- ^"X-ray spec -- Brabham BT 52".Motor Sport Magazine.7 July 2014.Retrieved13 December2019.
External links
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