Benetton B186

Source: Wikipedia, the free encyclopedia.
Benetton B186
TransmissionBenetton 6-speed manual
Power1,350–1,400 hp (1,010–1,040 kW) (qualifying trim) 850–900 hp (630–670 kW) (race-spec)
Weight548 kg (1,208 lb)
FuelBMW Wintershall
TyresPirelli
Competition history
Notable entrantsBenetton Formula Ltd
Notable drivers19. Italy Teo Fabi
20. Austria Gerhard Berger
Debut1986 Brazilian Grand Prix
First win1986 Mexican Grand Prix
Last win1986 Mexican Grand Prix
Last event1986 Australian Grand Prix
RacesWinsPodiumsPolesF/Laps
161223
Constructors' Championships0
Drivers' Championships0

The Benetton B186 is a Formula One racing car, built and raced by the Benetton team for the 1986 Formula One World Championship. It was the first car to be constructed and raced by Benetton, which had bought the Toleman team at the end of 1985 after several years of sponsoring it and other teams, including Alfa Romeo and Tyrrell.

The B186 was a competitive car: in the hands of drivers Gerhard Berger and Teo Fabi, it set two pole positions, three fastest laps, and was victorious at the 1986 Mexican Grand Prix.

The B186, along with the Brabham BT52, BT55, Arrows A9 and other BMW-engined cars from 1983 to 1986 are some of the most powerful Grand Prix cars ever built. The B186 in particular, being the most competitive of the BMW engined cars that season could produce 1,350+ hp in qualifying trim, and about 900 hp in race trim.

Concept

Despite the buyout of the small Toleman team by the financial power of the

Hart 415T units which had powered Toleman's F1 chassis since the team's début in the series in 1981.[4] The focus of BMW for 1986 was the new "lay-down" version of its M12/13 engine, designed for the revolutionary Brabham BT55 chassis, whilst the standard "upright" version was supplied to Benetton and the Arrows team.[5]

Both the BMW M12/13 and Hart engines used the

turbocharged BMW engine was about 600 bhp (447 kW; 608 PS) more powerful than the turbocharged Hart 415T engine in qualifying and about 200 bhp (149 kW; 203 PS) more in race trim and thus put more stress on the chassis.[3] Indeed, in terms of maximum horsepower, the BMW engines provided to Benetton, Brabham and Arrows were the most powerful in the series.[5] One of the main challenges faced by Byrne and the Benetton design team was to produce a comfortable cockpit for the team's two vastly different drivers: the short (approximately 1.68 metres (5.5 ft)) Teo Fabi and the 1.83 metres (6.0 ft) tall Gerhard Berger.[3]

Construction

The deal between Benetton and Toleman was only agreed in October 1985, leaving precious little time before the first race of the 1986 season on March 23 in

carbon fibre. The first part of the season was chiefly concerned with producing enough spare parts for the existing cars at the expense of chassis development and improvement.[4] All seven chassis raced in the hands of either Fabi or Berger during the course of the year; chassis number 4 was written off by the former in a crash during practice for the Canadian Grand Prix and chassis number 7 was the only race-winning B186, at the Mexican Grand Prix.[6]

The livery of the B186 reflected its ownership: in addition to the Benetton green and team sponsors (principally Sisley and Riello) which covered the front and sidepods of the car, the engine cover was adorned with multi-coloured streaks on a white background.[5] This indicated the Benetton Group's "United Colors of Benetton" brand. The team also ran with tyres that had multi-coloured sidewalls at the Detroit Grand Prix (see infobox picture).

Development

The sheer top-end power of the BMW engines (around 1,400 bhp (1,044 kW; 1,419 PS) in qualifying trim, with around 900 bhp (671 kW; 912 PS) for racing)

Ligier team.[4]

Benetton B186 of Berger in the BMW Museum.

Once the supply of spare parts had been assured by mid-season, the B186s were modified to incorporate a whole array of new aerodynamic features (including front and rear wings and a revised underbody), new suspension packages, and revised setup concepts.

Österreichring circuit made it the fastest car in the field with Fabi (pole) and Berger occupying the front row of the grid.[5] The car's competitiveness improved throughout the season, particularly during the second half, as a result of this development.[4] It also became more reliable, although this aspect remained suspect throughout the year with a total of nineteen retirements from 32 starts. The competitiveness of the Pirelli tyres also improved, and their relative durability compared to the Goodyears often played to the B186's advantage, exemplified by Berger's winning the 1986 Mexican Grand Prix due to not having to make a pit stop for a fresh set of tyres while most of the main contenders (with the exception of Prost's McLaren which finished second) made at least two stops for tyres due to the abrasive surface of the Autódromo Hermanos Rodríguez
.

Racing history

"

Monza. And the power was unbelievable - even if the turbo delay was terrible. You'd open the throttle at the entry to the corner only to get the power at the exit. And if you missed it by five or 10 metres, there was nothing you could do - you just spun it. The lag was about one or two seconds.
At Zeltweg, down the long straight to the Bosch Kurve, the car was throwing out 1400 bhp
and just kept on pushing - you felt like you were sitting on a rocket."

Gerhard Berger (speaking in 2007) on the B186.[9]

The B186 finished in the points in the first three races of the season, including a podium for Berger at the

Williams, McLaren and Lotus, and the team was set for a dominant 1-2 finish until Fabi over-revved his engine by lifting his rear wheels off the ground on a kerb, causing it to fail several laps later, and home town hero Berger's battery failed, causing him to lose five laps in the pits having a new one fitted. The McLaren and Williams cars- two of the other most aerodynamically efficient cars (although slightly down on power) - were the only other cars able to keep up with the Benettons at the Österreichring.[5]
Fabi took a pole position there, and a further one at Monza where problems on the warm-up lap saw him forced to start from pit lane. However, further unreliability and less efficient fuel consumption than rival engines prevented a victory. Berger finished a lap down in 5th while Fabi retired on lap 44 with a tyre blowout.

During the 2nd Qualifying session at Monza, Berger's B186 was speed trapped at a season's fastest 351.22 km/h (218.24 mph) while Fabi was second having been clocked at 349.85 km/h (217.39 mph). Berger's speed trap would be the second fastest recorded of the original turbo era in Formula One (1977-1988), beaten only by the

Honda of Nelson Piquet who recorded 352.135 km/h (218.807 mph) in qualifying at Monza for the 1987 race
.

Benetton finally won its first Grand Prix in

Honda), Alain Prost (McLaren-TAG) and Nigel Mansell (Williams-Honda), who all lost time as a result of stops or other mechanical issues.[11] It was generally agreed that the victory was a fitting culmination to Benetton's first season as an F1 constructor, Berger's emerging talent in what was the first of 10 career wins, and a vindication of the potential of the B186.[4]
The race would also prove to be the last win for the BMW M12 engine.

Benetton comfortably outperformed fellow-BMW users Brabham and

Renault V6 engines.[4] This was a surprise to BMW and Pirelli, who had both expected the radical, low-line Brabham BT55 designed by Gordon Murray, to be their fastest customer.[5] The B186 was replaced by the Ford turbo powered B187 for the 1987
season.

Complete Formula One results

(key) (Results in bold indicate pole position; results in italics indicate fastest lap.)

Year Entrant Engine Tyres Drivers 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pts. WCC
1986 Benetton Formula Ltd
S4 tc
P BRA ESP SMR MON BEL CAN DET FRA GBR GER HUN AUT ITA POR MEX AUS 19 6th
Teo Fabi 10 5 Ret Ret 7 Ret Ret Ret Ret Ret Ret Ret Ret 8 Ret 10
Gerhard Berger 6 6 3 Ret 10 Ret Ret Ret Ret 10 Ret 7 5 Ret 1 Ret

Current locations

Mallala Motorsport Park in South Australia
in 2016
Engine cover of Benetton B186 BMW Formula 1 car

The current known locations of the B186 chassis are as follows:

References

Footnotes
  1. ^ Hamilton (ed.), pp.53, 56
  2. ^ Jenkinson, Denis (March 1986). "The Formula One Scene". Motor Sport. Vol. 62, no. 3. p. 252.
  3. ^ a b c d e Ménard (ed.), pp.144-145
  4. ^ a b c d e f g h i Hamilton (ed.), p.49
  5. ^ a b c d e f g Spurring, p.162
  6. ^ a b c Hamilton (ed.), p.228
  7. ^ Hamilton (ed.), p.53
  8. ^ "BENETTON B186". gurneyflap.com. Gurney Flap. Retrieved 2010-03-10.
  9. ^ van de Burgt, Andrew, ed. (December 2007). "Photo Finish: The Story Behind the Picture - 1986: Austrian Grand Prix". Autosport. Vol. 190, no. 12. p. 102.
  10. ^ Hamilton (ed.), p.18
  11. ^ Hamilton (ed.), p.180
  12. ^ "Mondello Museum". Facebook. Retrieved 24 January 2016.
  13. ^ Browning, Michael (2008-03-04). "Bowe to race F5000 at Phillip Island Classic". shannons.com.au. Shannons Insurance. Retrieved 2009-05-08.

External links