Re: Haas-CNC Cars ConfiscatedOn May 25, 8:05 am, AeroLoose <aerolo...@gmail,com > wrote:
> Tom S. wrote:
> > While preparing my RPG picks, I came across an article on NASCAR,com .
> > It stated that the Haas-CNC #66 and #70 were both confiscated and
> > hauled to the R&D Center. NASCAR apparently had "an issue with the
> > upper rear wing mounting points of the 66 and 70 cars." They had
> > apparently been altered.
>
> > I am just wondering why both cars were altered, how they were altered,
> > etc. I know that changing the location of those points can affect the
> > amount of downforce and drag generated by the wing. But, that would
> > only be really useful if you could change the angle of the wing during
> > the course of the race, similar to what some World of Outlaw racers do
> > - increase the angle in the turns for more downforce and decrease it
> > on the straights for less drag. But, I don't see how that could be
> > done without some sort of mechanical linkage to do the moving.
>
> > Any Scott Riggs and Johnny Sauter will be starting in the back in
> > backup cars, so it doesn't really bode well for the Haas -CNC cars
> > tomorrow.
>
> > Tom S.
>
> A couple crazy ideas based on Tom's comments:
>
> 1. Perhaps the team discovered that relocating the bolt holes
> changed the impact the fastener protrusions (bolt head, nut,
> etc.) made on the airflow over / through the wing, helping in
> some way. This might also explain why Nascar took the cars,
> versus just the brackets as they did to Earnhardt last year.
>
> 2. Perhaps the altered locations made the mounting geometry
> incur more load (lever arm), and possibly allow the wing to shift
> slightly during the race. As the race conditions change over the
> course of the event, the wing would directionally contribute to
> help correct the car, along with the typical adjustments. Of
> course, it would fail post-race tech, and perhaps the bolt holes
> are close-tolerance enough to prevent this, but ...
>
> Anyway, those are my SWAGs for fun. Feel free to debunk or build
> on as desired.
>
> Aero
Along those lines it is possible that the mounting points were located
so that the wing angle changes at racing speeds but returned to spec
for the inspection process with no air pushing on it.