# Aerodynamic Problems: Take-off and Landing

Estimate the sea-level landing ground roll distance for the airplane in problem #4. Assume the airplane is landing with a weight of 2900 Ib. The maximum lift coeficient with flaps at touchdown is 1.8. After touchdown, assume zero lift.

A Cub has a minimum flying speed of 39.3 mph in straight, level flight. Assuming unlimited engine power, what is the minimum turn stalling speed in: A 30, 50, and 70 degree banked turn?

An airplane weighing 4,600 Ib hasa Cark-Y wing of 340 sq. ft. area with aspect ratio 6. If the airplane is flying at 150 mph at 35 degrees of bank, what is the turn radius?

A racing plane weighing 3500 Ib is rounding a pylon at 380 mph. The radius of turn is 150 ft. What should be the angleeof bank?

An airplane weighing 2740 Ib has a Clark-Y wing with 243 sq. t. in area with aspect ratio 6. If the airplane is flying at 170 mph at a 1/8 of a mile radius of turn. Calculate the bank angle in degrees.

An airplane is making a 40 degrees banked turn over a 565 ft. radius. What should be the airspeed in mph?

A plane of 3800 Ib gross weight is turning at 175 mph with A dngle of bank of 50 degrees. What is the centrifugal force? wnat is the lift? What is the radius of turn required?

An airplane is flying straight at 150 mph. Its weight is 6000 b. Its wing area is 200 sq. ft. with aspect ratio 6 and used Clark-Y airfoil. If the airplane is flying at 150 mph at 30 degrees of bank. calculate the following: –
Centrifugal Force, Lift, radius of turn?

Estimate the sea level landing roll for an airplane X. Assume landing weight of 2850 lbs, CLmax with flaps at touchdown is 1.8. After touch down, assume L=0