Game Development Reference
In-Depth Information
The three types of drag experienced by an airplane, skin friction, form, and induced
drag, and how induced drag is related to the lift generated by a wing
How to compute the thrust of propeller and jet engines and how to account for altitude
effects on thrust
The physics of takeoffs and landings
How a plane turns and the effect turns have on lift and stall
Answer to Exercise
1.
When the plane is rolling down the runway, the angle of attack is zero (assuming that
the incidence of the wing is zero). Looking at Figure 10-11, the lift coefficient for the
NACA 2412 airfoil at zero degrees angle of attack is about 0.25. Adding 0.25 for the flap
deflection and 0.25 for ground effects gives an effective lift coefficient of 0.75. The takeoff
velocity can be determined from Equation (10.36).
2
W
2 *10245
m/s
v
=
=
=
37.2
CA
r
0.75*1.22 *16.2
L
References
1. University of Tennessee Aerodynamic Database, www.engr.utk.edu/~rbond/airfoil.html
2. J. Lowery, “Propeller Aircraft Performance and the Bootstrap Approach,”
www.allstar.fiu.edu/aero/BA-Background.htm
3. U.S. Standard Atmosphere 1976, http://nssdc.gsfc.nasa.gov/space/model/atmos/
us_standard.html
4. http://skyhawk.cessna.com
5. www.geae.com/engines/military/f110/index.html
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