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Flight Dynamics Principles, 2nd Edition
book

Flight Dynamics Principles, 2nd Edition

by Michael V. Cook
February 2011
Beginner to intermediate content levelBeginner to intermediate
488 pages
17h 21m
English
Butterworth-Heinemann
Content preview from Flight Dynamics Principles, 2nd Edition
Ch04-H6927.tex 20/6/2007 16: 33 Page 82
82 Flight Dynamics Principles
Similarly, since the airframe is symmetric, elevator deflection and thrust variation do
not usually cause lateral–directional motion and the coupling aerodynamic control
derivatives may also be taken as zero thus
Y
η
=
Y
τ
=
L
η
=
L
τ
=
N
η
=
N
τ
= 0 (4.44)
The equations of lateral asymmetric motion are therefore obtained by extracting the
side force, rolling moment and yawing moment equations from equations (4.37) and
substituting equations (4.43) and (4.44) as appropriate. Whence
m˙v
Y
v
v
Y
p
+mW
e
p
Y
r
mU
e
r
mgφ cos θ
e
mgψ sin θ
e
=
Y
ξ
ξ +
Y
ζ
ζ
L
v
v +I
x
˙p
L
p
p I
xz
˙r
L
r
r =
L
ξ
ξ +
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Publisher Resources

ISBN: 9780750669276