Okay Howard.... This is only my thoughts.... I would have to think
Airflowing backwards would create a Smaller Plume then out the side.... now
if I have to gain X number of square inches of frontal area to make that
happen it would be worth it by significantly reducing the signature of the
car overall...
And about that Wind Tunnel.... Me and John will bring our junk by and give
her a whirl when you get it up and operational..... I am dying to try one
with the Bugeye.... it's a day somewhere in my life I see happening.....
Keith
----------
> From: Nafzger <nafzger@vtc.net>
> To: John Beckett <landspeedracer@email.msn.com>; Keith Turk
<kturk@ala.net>; land-speed@autox.team.net
> Subject: Re: Exhaust exits
> Date: Tuesday, February 13, 2001 3:34 PM
>
> 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
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