Re: The difficulty of high-lift devices for tandem wing aircraft (long)


David J. Gall
 

Pat,

That's not always true. A well designed monoplane loaded near the aft part
of the CG envelope will often have positive lift on the tail at cruise. Many
airliners use this technique since, at cruise, the fuselage makes a nose-up
pitching moment that must be negated with positive lift on the tail.

David J. Gall

-----Original Message-----
From: Q-LIST@yahoogroups.com [mailto:Q-LIST@yahoogroups.com]
On Behalf Of Patrick Panzera
Sent: Wednesday, November 16, 2005 8:42 AM
To: Q-LIST@yahoogroups.com
Subject: RE: [Q-LIST] Re: The difficulty of high-lift devices
for tandem wing aircraft (long)

< snip! >

In a traditional monoplane configuration, the horizontal
stabilizer creates negative lift in order to "trim" the
plane. This is 100% drag.

Pat

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