Do the following: (a) Explain roll damping and what its main sources are on an aeroplane. (b) Assuming roll damping to be produced entirely by the wing of an aeroplane, show that the dimensionless...

Do the following: (a) Explain roll damping and what its main sources are on an aeroplane. (b) Assuming roll damping to be produced entirely by the wing of an aeroplane, show that the dimensionless roll damping stability derivative Lp is given by

(c) The Navion light aeroplane has a straight tapered wing of span 33.4 ft, area 184 ft2 , and root chord length 8 ft. At the given flight condition the wing drag coefficient is 0.02 and the lift curve slope is 4.44 per radian. Estimate a value for the dimensionless roll damping stability derivative Lp. Show all work and state any assumptions made.