The Forward Look- more than just fins/Exner SAE Paper

["Don Nonnweiler" <dnonnwei@xxxxxxxxx>]

>From what I've been told part of the reason Chrysler stopped making the hemi
first in 1959 and then in 1970 was they could not use them in the racing
circut anymore, plus the cost of making them was expensive  and shortage of
fuel in the 70's
Don
59 Crown
----- Original Message -----
From: "Bill Watson" <wwatson@xxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Sunday, December 22, 2002 8:31 PM
Subject: Re: IML: The Forward Look- more than just fins/Exner SAE Paper


>
> The AAA got out of racing in 1956, and the American auto manufacturers
> instituted a self-imposed ban on racing in 1958.  Well, at least overtly,
> and that included Chrysler.
>
> Do not know about the ban on the hemi in 1959 as Chrysler stopped making
> them in 1958, the same year they 'officially' got out of racing.
>
> Bill
> Vancouver, BC
>
>
> ----- Original Message -----
> From: "Don Nonnweiler" <dnonnwei@xxxxxxxxx>
> To: <mailing-list@xxxxxxxxxxxxxxxx>
> Sent: Sunday, December 22, 2002 6:04 PM
> Subject: Re: IML: The Forward Look- more than just fins/Exner SAE Paper
>
>
> > If memory serves correct Chrysler was doing quite well in AAA racing
which
> > is who ran racing before Nascar took over, alot had to do with the
> > aerodynamic fins and of course the infamous hemi which AAA banned the
hemi
> > after the 59 season and then of couse the hemi was banned by Nascar in
> 1970
> > and we all remember the wings of the superbird and daytona.  But the
main
> > reason Exner used wind tunnels was because in those days Chrysler backed
> > there racing teams alot
> > Don
> > 59 Crown
> > 55 St regis
> >
> > ----- Original Message -----
> > From: "John M Brauninger" <flightsweep@xxxxxxxx>
> > To: <mailing-list@xxxxxxxxxxxxxxxx>
> > Sent: Saturday, December 21, 2002 8:24 PM
> > Subject: Re: IML: The Forward Look- more than just fins/Exner SAE Paper
> >
> >
> > >
> > > I believe Virgil Exner presented a paper at an SAE (Society of
> Automotive
> > > Engineers) conference in the late 50s that outlined the aerodynamic
> > > principles and benefits (e.g., stability in crosswinds) of  Mopar
> > > tailfins. This topic has been discussed before but the site search
> engine
> > > appears to be down so I can't provide any links for those interested
in
> > > more details.
> > >
> > > John B.
> > >
> > > On Sat, 21 Dec 2002 11:07:08 -0600 (CST) dardal@xxxxxxxxxxxxxxx
writes:
> > > > Quoting kenyon wills <imperialist60@xxxxxxxxx>:
> > > >
> > > >
> > > > > wind was blowing really hard.  Of course the weight of the car,
> > > > and the
> > > > > relative lack of hurricane force cross winds might probably also
> > > > > contribute to the fins not really making a difference.  Maybe at
> > > > 100
> > > > > mph
> > > > > they make the car track straighter, but the gyroscopic forces of
> > > > the
> > > > > wheels would tend to help any car on that point.
> > > >
> > > > Actually, as the speed increases, I have noticed that the effects of
> > > > the cross
> > > > winds generally diminish.  The reason is most likely that the fast
> > > > forward
> > > > speed reduces the angle at which the wind "hits" the car.
> > > > D^2
> > > >
>
>
>
>