QUESTIONS AND SOLUTIONS GRADED A+
●● How is a spin initiated.
Answer: -Aircraft is stalled
-One wing is more deeply stalled
-More deeply stalled wing produces less lift- aircraft rolls towards this
wing
-CP moves behind CG- pitch down moment
-Downgoing wing produces lots of drag and wake- causes aircraft to
yaw in direction its rolling
●● What is autorotation.
Answer: Where the aircraft continues to spin without pilot input
- outer wing travels faster
- more lift created
- more lift= more drag= more yaw= outer wing travels faster etc.
●● In a spin what wing has a higher Cl and lower Cd.
Answer: Upgoing wing
●● What is pro-spin control.