Thanks for the reference. I just wanted to be sure of the usage. I agreed
with everything in the explanation except the pronunciation of the word,
but that is hard to do without offering a full graduate course in
phonetics.

I'm happy to have the article to support my arguments about turning
flight.


At 18:39 28 September 2009, wrote:
On Sep 28, 11:15=A0am, Nyal Williams wrote:
Is there a term for the difference between the angle of incidence of
the
wing and the angle of incidence of the tailplane? =A0I have heard/read
decalage used this way; however, wikipedia says decalage means the
difference between the angles of incidence between the two wings of a
bi-plane. =A0(Thinking of that makes me think that extending Fowler
flaps
turns the aircraft into a bi-plane). =A0

Is there a separate term? =A0Is this usage correct (Is Wikipedia just
incomplete?)?

Looks like Wikipedia is incomplete. Decalage between wing and tail is
used to generate pitch stability.

Take a look at http://www.av8n.com/how/htm/aoastab.html, it has a good
explanation.

Kirk