Car · Brabham · 1978–1979

Brabham BT46

The fan was declared to be for cooling, which was true for about 30 per cent of what it did. Lauda won the 1978 Swedish Grand Prix by half a minute and the car was never raced again: Ecclestone owned Brabham and was building his position in FOCA, and the other team principals made withdrawing it the price. It remains the only car to win every Grand Prix it entered.

Seasons
1978–1979
Entries
0
Wins
0
Poles
0
Fastest laps
0

Why it mattered

The idea. If a flat-12 is too wide for ground-effect tunnels, make the downforce a different way: extract the air from under the car with a fan

New on this car. Surface heat exchangers in place of radiators on the original BT46 (which did not work); on the BT46B, an engine-driven fan drawing air from a skirted underbody

What it did. The BT46B won the one race it started. The conventional BT46 won at Monza the same year.

Designers
Gordon Murray
Supersedes
—
Design life
1978–1979
Confidence
high

Specification

Chassis
Aluminium Monocoque
Front suspension
Pullrod double wishbone
Rear suspension
Pullrod double wishbone
Brakes
disc
Gearbox
Brabham / Alfa Romeo
Gears
5/6-speed
Tyres
Goodyear
Fuel
Fina; Agip
Engine
Alfa Romeo
Configuration
Flat-12
Capacity
2,995 cc
Aspiration
naturally aspirated
Power
520 bhp
Power note
520 hp @ 12,000 rpm
Weight
—
Wheelbase
2,590 mm
Track, front
1,549 mm
Track, rear
1,626 mm

A blank is a figure nobody published for this car. Where several teams quote the same number in a season it is usually the rule they were all built to rather than a measurement, so it is kept with the regulation limits instead of here.

Every entry 0 entries

No race entry in this database resolves here. That is usually a constructor that ran several designs in a season and no source saying which raced when, not a car that never raced.

Where this comes from

Constructor
Brabham
Predecessor
BT45C
Successor
BT48
Races (published)
15
Wins (published)
—
Poles (published)
2
Confidence
reference
Specification source
https://en.wikipedia.org/wiki/Brabham_BT46
Register source
https://github.com/f1db/f1db