REFLECTOR: Air pressure question...

[Hiroo Umeno]

Folks,

Sorry about my earlier confusion.  Sid did answer my question the first
time around perfectly.  My SPAM filter and the jet lag conspired to
obscured the answers that was plainly given the first time around.

Great info!  Thanks.

Hiroo

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Richard Riley
Sent: Friday, June 17, 2005 11:07 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Air pressure question...

OK, isn't that static pressure, not pitot (dynamic) pressure - which
would 
vary with speed?

At 09:57 AM 6/17/05, you wrote:
>You may be confused but you are also correct... My pitot pressure value

>was for "standard conditions". I realize now that this did not answer
your 
>question about pitot pressure at 20,000 ft.
>Maybe (I am guessing here) at 20,000 ft since the absolute pressure is
only
>
>6.67 / 14.5 x 100 = 46% of sea-level, then perhaps the pitot pressure 
>would be decresaed by the same percentage.
>
>1.45 psi x .46 = 0.667 psi.
>
>However, then there is the non-standard temperature at 20,000 ft that
may 
>enter in??? Would the E6B help here??
>
>Sid
>
>----- Original Message -----
>From: "Richard Riley" <reflector at tvbf.org>
>Sent: Friday, June 17, 2005 10:48 AM
>Subject: Re: REFLECTOR: Air pressure question...
>
>
> > OK, now I'm really confused.
> >
> > The only email I have from Sid on this topic reads:
> > ===================
> > 6.76 psi at 20,000 ft
> >
> > from http://www.tvbf.org/mailman/listinfo/reflector
> > >
> > > Visit the gallery! http://www.tvbf.org/mailman/listinfo/reflector
> >
> > Visit the gallery! www.tvbf.org/pipermail
> > Check old archives:

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