Howard
I would say your compromise is as good as it gets.
40 acres, hmmmm, now all we need is a 3000 HP electric motor.
John
----- Original Message -----
From: "Nafzger" <nafzger@vtc.net>
To: "John Beckett" <landspeedracer@email.msn.com>; "Keith Turk"
<kturk@ala.net>; <land-speed@autox.team.net>
Sent: Tuesday, February 13, 2001 4:34 PM
Subject: Re: Exhaust exits
> John,
> I think we all anguish over this problem. I really wanted to run mine out
> the rear of the car but had to deal with several problems:
> 1. Vertical slot in rear of car is only 1" wide.
> 2. limited space to route the exhaust pipes up over the big quick change
to
> get to the rear of the car.
> 3. Exhaust would have run right on top of the fuel cell which is just
behind
> the quick change. I grit my teeth at that.
> 4. Etc.
> I don't like them sticking out the sides. It HAS to foul up the air flow.
> The only salvation is that it may be so turbulent that far back that the
> penalty is minimized.
> I have considered 90 degree bends right outside the car but the
turbulence
> caused by two 3 1/2 u-bends sticking out may not be an improvement. Let's
> see, I have 40 acres, if I can just win the lottery I can build a wind
> tunnel with a moving floor and answer this once and for all.
>
> Howard
>
> ----- Original Message -----
> From: "John Beckett" <landspeedracer@email.msn.com>
> To: "Keith Turk" <kturk@ala.net>; <land-speed@autox.team.net>
> Sent: Tuesday, February 13, 2001 7:23 AM
> Subject: Re: Exhaust exits
>
>
> > Much to be learned here. Would have to have a running engine in a wind
> > tunnel to see the actual effects.
> > I don't like blowing the exhaust out the side of the body. Thinking it
> costs
> > HP and hurts CD. Would like to know how to make it work.
> >
> > John Beckett
> > ----- Original Message -----
> > From: "Keith Turk" <kturk@ala.net>
> > To: <land-speed@autox.team.net>
> > Sent: Tuesday, February 13, 2001 6:39 AM
> > Subject: Exhaust exits
> >
> >
> > > I wanted to share a thought about Airflow and exhaust exits
> > >
> > > Brad... Dave and I have talked about exhaust exit points for the last
> year
> > > and we all agreed that it really has to go out the Back.... While
Alan
> > was
> > > over we chatted about that and talked about distrubed air on the side
of
> > the
> > > car as a result of Exhaust exiting the Side.... He also mentioned the
> > > minimal thrust advantage of it going out the back....
> > >
> > > What was most interesting to me was the thought of using it as a tool
> > along
> > > the side of the body .... We were talking about an aircraft that used
> some
> > > of it's exhaust as a trip fence to get air to flow around a
particularly
> > bad
> > > part of the plane.... Thinking out loud I mentioned maybe using some
to
> > trip
> > > the air off the back Wheel wells.... and he thought there might be
some
> > > merit to the idea
> > >
> > > Just another wierd thought to pass along....
> > >
> > > Keith
///
/// land-speed@autox.team.net mailing list
///
|