Subject: Re: Air Density
> John,
> This is just an amateur opinion but I would rather have lower air density
> and tip the can or crank the boost up or whatever to make up the small
> difference in power. It for sure takes less power to push a given body
shape
> to lets say 330 MPH when the air density is lower. My engine tuner guy
> brings his TAG weather station with him so we can monitor density
altitude. If
> any of you want to stop by our pits we will give you a current reading.
> As far as wet salt, it seems wetter in mid day to me but I'm always
> thrashing so hard that I just go to the starting line whenever we are
ready.
> If I live long enough maybe we will get this operation smoothed out enough
> we can actually plan a run. (novel thought)
> I'm getting old and everything seems harder these days.
> Howard
> 448/CFS
>
> ----- Original Message -----
> From: "John Beckett" <landspeedracer@email.msn.com>
> To: "DrMayf" <drmayf@teknett.com>; <kturk@ala.net>; "Dick J"
> <lsr_man@yahoo.com>; <Want1937hd@aol.com>; <edvs@uswest.net>
> Cc: <land-speed@autox.team.net>
> Sent: Wednesday, June 27, 2001 12:56 PM
> Subject: Air Density
>
>
> > I can tell you about my air density situation trying to get a 747 off a
> > short runway in Cairo in the middle of summer. Long story, but sucking
the
> > landing gear up at the end of the runway was a little un-nerving.
> > Hot, dry air is considerably less dense. And at the speeds were running
at
> > Bonneville it makes a difference.
> >
> > John B
> > ----- Original Message -----
> > From: "DrMayf" <drmayf@teknett.com>
> > To: <kturk@ala.net>; "Dick J" <lsr_man@yahoo.com>; <Want1937hd@aol.com>;
> > <edvs@uswest.net>
> > Cc: <land-speed@autox.team.net>
> > Sent: Wednesday, June 27, 2001 1:28 PM
> > Subject: Re: Slugs
> >
> >
> > > Don't know squat about salt wetness. But if air is denser then it
takes
> a
> > > linear amount of horsepower to overcome the increased drag caused by
it.
> > Hot
> > > air is less dense, reduces lift and drag. Also hot air decreases HP.
But
> > for
> > > those on juice or pressurized and intercooled, then makes not much
> > > difference. So if those conditions are met, run at the hottest part of
> the
> > > day. For normal aspirated run at mid morning.
> > >
> > > And Keith, why does an educated college dude like yourself pretend to
be
> > > dumb? You went to Emory Ridel or somewhere didn't you?
> > >
> > > mayf, the rednecked, very ignorant, desert rat, just ask anyone!
> > >
> > > >Subject: Re: Slugs
> > >
> > >
> > > >
> > > > Okay let me see..... Air density is a critical factor in determining
> > > > Drag... >
> > > > We have talked about this Many times on the list.... Dave Dahlgren
and
> I
> > > > were chatting about it yesterday on the phone.... and we found
several
> > > > factors besides air which might attribute the Morning Passes to
being
> > > > slower then the afternoon passes. I'll pitch a couple of theory's
> out
> > > and
> > > > let Mayf give us his hypothesis on them ... ( someday I'll learn
what
> > that
> > > > word means.... just dont' teach me now I like being ignorant )
> > > >
> > > > 1. The Salt is wetter in the morning then it is in the afternoon.?
> ( I
> > > > think this is true.... any decenters?
> > > >
> > > > a. Wet salt provides worse traction
> > > > b. Wet salt increases Rolling resistance
> > > >
> > > > 2. The air is denser in the morning.
> > > >
> > > > a. Dense air increases the drag because there are more slugs per
mass
> > > > volume of air.
> > > > b. Dense air makes more Hp but not enough to over come the
increased
> > > > drag associated with the dense air.
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