BRM P142 wing car windtunnel model
Posted 03 August 2006 - 20:21
Posted 04 August 2006 - 08:43
Last night I took the cross section drawing and cut out the sections to form a skeleton of the car. While the rear end is typical of a ground effect car, with a very narrow chassis bottom and enginegearbox faired-in all the way to the rear of the car. The front end is unusually rounded, the cross section either side of the cockpit is nearer oval compared to the squared raised sections that form the roof the ground effect tunnels Adding endplateskirts to the side of this design would make it appear a very typical wing car from ten years later. What is unusual is the very high scuttle line the top of the sidepods which is nearly at the rear wheel height towards the back of the car, this is partly to accommodate the very high trailing edge of the ground effect tunnel. Most wing cars of the 80s used much lower tunnels.
Some of the detail in the drawings isn't fully resolved, so I've also redrawn the plan and side elevations to show where the body work was. While my first impression of the NACA ducts was to solely feed the induction system, there appears to be a pair of narrow slanted radiators mounted high up ahead of the engine, perhaps the very large ducts were to feed both cooling and induction, but the drawings detail has been obliterated so I cant confirm. Otherwise there is no obvious intake for the radiators.
The rear wing was added at a later stage as was the cockpit surround. The rear wing was mounted to two fins extended dup from the rear wheel cut out.
Posted 04 August 2006 - 11:17
It is amazing how far ahead of the time the shape was.
Posted 04 August 2006 - 13:21
The model itself looks uncannily like Mr Stanley whipped the pictures out of the bin many years later, put Rotary watch stickers all over it and stuck Larry Perkins in it.
It is a truly amazing peice of futurism. To fool some fairly trained eyes into thinking it was from a much later era eans that Peter Wright really was a visionary. Usually there are fairly obvious signs of age on a prototype model but this really has none. In many ways this is more advanced than the 78,79 and 80, and has more in common with Gordon Murrays ill fated surface cooled Brabham Alfa -how many years later was that?
Posted 04 August 2006 - 14:11
I've remembered something else. Many of the CanAm McLarens, the M6 and the M8 series, incorporated what would now be considered ground effect thinking, especially in the shape of the nose undersides, though as far as I know, no wind tunnel testing was carried out on any of them. At much the same time, Peter Wright was collaborating with Eric Broadley on the CanAm Lola 260, which incorporated no real ground effect elements at all. Most of the front end treatments on that car were real barn-door aerodynamics, and you should have seen some of the test models that never got further than the SM wind tunnel. The point I'm making is that PW was much involved in ground effects thinking with the 1968/9 BRM wing car, appeared to abandon it completely on the projects he worked on after that, and was only brought back to it by Chapman The Visionary in the mid 70s. A lot of work was done by a lot of very clever people, Peter Wright included of course, but I still believe that inspiration for the true ground effect concept as we know it today, came mostly from Colin Chapman's fertile brain.
Posted 02 September 2006 - 20:23
In all honesty, I'm still coming coming to terms with the idea that BRM had "the wing car" within their realm and cancelled the project. NINE years before the Lotus 78 came to be!
In fact, probably absolutely typical. Some people have an awful lot to answer for...
Posted 02 September 2006 - 21:17
Maybe someone needs to ask him, I'm sure he would tell us?
Posted 02 September 2006 - 21:26
Ouch! You really don't want to be doing that...
Originally posted by Bonde
(saves me prodding through the piles)
My first thought too!
Originally posted by MCS
Isn't this the Lotus 88 ?!
Posted 02 September 2006 - 23:15
Originally posted by scheivlak
As I posted earlier (#4)
I was just about to say......seen it before
Posted 03 September 2006 - 02:26
Just consider my post as the ESPN Classic version
Originally posted by macoran
I was just about to say......seen it before
Posted 03 September 2006 - 09:42
Posted 03 September 2006 - 12:59
Posted 03 September 2006 - 21:12
You really have a sick sense of humour! (...note to self: Beware of synonyms suitable for disgusting pun...)