The Brabham BT46B "Fan ọkọ ayọkẹlẹ" ti 1978, ti ipilẹṣẹ nla downforce pẹlu kan fan, eyi ti sucked air lati labẹ awọn ọkọ ayọkẹlẹ, biotilejepe awọn oniwe-ẹri lilo je fun engine itutu. awọn ọkọ ayọkẹlẹ nikan raced lẹẹkan ninu awọn Formula One World Championship<unk>Niki Lauda gba awọn 1978 Swedish Grand Prix<unk>before a loophole ninu awọn ilana ti a ti pa nipa awọn FIA.Although ni 1979 Murray ni akọkọ lati lo lightweight "carbon fiber composite" panels to stiffen Brabham ká aluminiomu alloy monocoques, o echoed rẹ ti iṣaaju ni a ti kẹhin ranac to awọn titun ni kikun composite monocoques. Murray ti a ti ni kikun ni oye ohun elo ti won lo lati kọ BT46B pẹlu gbogbo awọn ọkọ ayọkẹlẹ titi ti a ti pari ni ọdun 1986, "BT / 49B" jẹ orukọ miiran ti a ko ni oye fun gbogbo awọn ọkọ ayọkẹlẹ ti o ni oye lati kọ BT46B pẹlu awọn ohun elo ti o ni oye.
Ọkọ ayọkẹlẹ afẹfẹ