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BRM P48 - Wikipedia

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BRM P48

Category

Formula One

Constructor

British Racing Motors

Predecessor

Successor

Technical specifications^[1]

Chassis

Steel ladder frame

Suspension (front)

double wishbones, coil springs over dampers, anti-roll bar

Suspension (rear)

double wishbones, coil springs over dampers, anti-roll bar

Wheelbase

90 in (228.6 cm)

Engine

British Racing Motors 25 2,491 cc (152.0 cu in) S4 N/A, rear-mounted.

Transmission

British Racing Motors 4-speed transverse shaft. ZF differential.

Weight

1,102 lb (499.9 kg) (Unladen)

Fuel

Petrol/alcohol mix.

Tyres

Dunlop.

Competition history

Notable entrants

Owen Racing Organisation

Notable drivers

Debut

1960 Monaco Grand Prix

Races	Wins	Poles	F/Laps
7	0	0	1

The BRM P48 was a Formula One racing car raced in 1960. It was BRM's first rear-engined car. With rear-engined cars in the ascendancy, BRM hastily reworked the front-engined, now five-year-old P25. The car proved to be slow and unreliable, and was replaced by the P48/57 the following year.

Development

Aside from the placement of the driver and engine, the P48 was mechanically the same as the outgoing P25. It featured the same 2.5 litre straight-4 engine producing 275 horsepower. The P48 also featured a single brake disc at the rear mounted directly to the gearbox. The rear bodywork was cut off to aid cooling, which exposed the unlovingly nicknamed "bacon slicer" rear brake.

During 1960 Tony Rudd designed his Mark II version of the car, with a conventional 2 disc rear brake layout, simple rear wishbone suspension and a much lower profile. This resulted in a much better handling car, and for the 1961 Formula One season BRM based their chassis designs on the Mark II.

Racing record

For 1960, BRM campaigned three P48s for Joakim Bonnier, Graham Hill, and Dan Gurney. The P48 debuted in the second race of the season, the Monaco Grand Prix. To the surprise of everyone, including the team, all three cars finished. Bonnier scored points for fifth. However, this proved to be a false hope, as each driver finished only once more. At the Dutch Grand Prix, Hill finished a respectable third behind the Coventry Climax engined Cooper and Lotus of Jack Brabham and Innes Ireland. Sadly, Gurney's rear brake failed on the entry to Zandvoort's first hairpin; his BRM rolled into the stands, killing one spectator and injuring several others. After the Zandvoort disaster, BRM scored just once more with Bonnier in the United States Grand Prix. BRM finished the season with a disappointing 8 points.

The Mark II cars were raced in the 1961 Intercontinental Formula races.

Dan Gurney won the 1961 Victorian Trophy at the Ballarat Air Strip circuit in Victoria, Australia driving a P48.^[2]

Complete Formula One World Championship results

Year	Entrant	Engine	Tyres	Drivers	1	2	3	4	5	6	7	8	9	10	Points	WCC
1960	Owen Racing Organisation	BRM P25 2.5 L4	D		ARG	MON	500	NED	BEL	FRA	GBR	POR	ITA	USA	8	4th
				Graham Hill		7		3	Ret	Ret	Ret	Ret		Ret
				Joakim Bonnier		5		Ret	Ret	Ret	Ret	Ret		5
				Dan Gurney		NC		Ret	Ret	Ret	10	Ret		Ret

References

^ Ménard, Pierre (2000). The Great Encyclopedia of Formula One. London, England: Constable & Robinson Ltd. p. 432. ISBN 1-84119-259-7.
^ Victorian Trophy, Ballarat, 12 Feb 1961, www.oldracingcars.com, as archived at web.archive.org

Nye, Doug (2003). BRM: The Saga of British Racing Motors: Rear-Engined Cars, 1960-79. Vol 2. Motor Racing Publications. ISBN 1-899870-00-8.

v t e British Racing Motors
People	Founder Raymond Mays Principals Alfred Owen Louis Stanley Jean Stanley Designers Peter Berthon Aubrey Woods Tony Rudd Len Terry Tony Southgate Mike Pilbeam World Champions Graham Hill Drivers List of drivers
Titles	Drivers' titles 1962 Constructors' titles 1962
Cars	Formula One cars 15 P30 P25 P48 P48/57 P57 P61 P261 P67 P83 P115 P126 P133 P138 P139 P153 P160 P180 P201 P207 P230 Sportscars Rover-BRM P154 P167 P351 P301 Engines I4 V16 V8 H16

v t e « previous Cars that competed in the 1960 Formula One season (ex. Indianapolis 500) next »
Aston Martin DBR4/250 Aston Martin DBR5/250 Behra-Porsche RSK BRM P25 BRM P48 Cooper T43 Cooper T45 Cooper T51 Cooper T53 Ferrari 246 Ferrari 246P Ferrari 156P JBW Type 1 Lotus 16 Lotus 18 Maserati 250F Porsche 718 Scarab F1 Vanwall

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