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From: "Andre P. Stewart" <user@internet.com>
Subject: Re: pitch vs. power
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Julian Scarfe wrote:

> Mike Bevan wrote:
> >
> > This is one of those things that people argue about a lot. The answer is
> > that pitch and power combine to control both altitude and airspeed. There
> > is an interactive relationship going on, which means that in the long run
> > you will have to adjust both.
>
> Excellent points.  The relative leverage of pitch and power in controlling
> airspeed and rate of climb/descent depend on both what you're flying and where
> you are in the flight envelope.  For an aircraft like a C152 with a narrow
> envelope, you can probably get away with "pitch for airspeed power for rate of
> climb/descent".  The wider the envelope, the more aware you need to be of
> different requirements in different situations.
> --
>
> Julian Scarfe

 Very intelligent answer.  But you raise one question for me.  What is a flight
envelope?  Is there a glossary or FAQ that might have that information as well as
much more?  I suppose I just need to consult some ground school books
(references).

--
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Andre Stewart



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<HTML>
Julian Scarfe wrote:
<BLOCKQUOTE TYPE=CITE>Mike Bevan wrote:
<BR>>
<BR>> This is one of those things that people argue about a lot. The answer
is
<BR>> that pitch and power combine to control both altitude and airspeed.
There
<BR>> is an interactive relationship going on, which means that in the
long run
<BR>> you will have to adjust both.

<P>Excellent points.&nbsp; The relative leverage of pitch and power in
controlling
<BR>airspeed and rate of climb/descent depend on both what you're flying
and where
<BR>you are in the flight envelope.&nbsp; For an aircraft like a C152 with
a narrow
<BR>envelope, you can probably get away with "pitch for airspeed power
for rate of
<BR>climb/descent".&nbsp; The wider the envelope, the more aware you need
to be of
<BR>different requirements in different situations.
<BR>--

<P>Julian Scarfe</BLOCKQUOTE>
&nbsp;Very intelligent answer.&nbsp; But you raise one question for me.&nbsp;
What is a flight envelope?&nbsp; Is there a glossary or FAQ that might
have that information as well as much more?&nbsp; I suppose I just need
to consult some ground school books (references).
<PRE>--&nbsp;
---
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Andre Stewart
</PRE>
&nbsp;</HTML>

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