Blackboard on-line Homework review questions- Aerodynamics of Spins1. What are the two basic requirements needed before and aircraft will spin?2. Who was the second pilot to survive a spin but was the first to do so before competent observers? What year did this event take place?3. Name the four phases of a spin?4. Fill in the blanks:A. ________________phase- is from the time of stall and rotation starts until the spin has fully developed. Usually occurs rapidly for light aircraft (4-6 seconds or two turns). B. ________________ phase-when the aircraft angular rotation rate, airspeed and vertical speed are stabilized and while the flight path is approximately vertical. Aerodynamic and inertialforces are balanced.C._________________Phase- when the angle of attack of the wing decreases below the critical AOA and autorotation stops. The nose steepens and rotation stops. May last for a quarter of a turn in light aircraft.5. Which statement below are true?A. Aerodynamic forces are acting on the plane because of its motion in the air.