*1 Which one of the following statements is NOT TRUE for a supersonic flow? A) Over a gradual expansion, entropy remains constant B) Over a sharp expansion corner, entropy can increase C) Over a gradual compression, entropy can remain constant D) Over a sharp compression corner, entropy increases *2 A supersonic airplane is expected to fly at both subsonic and supersonic speeds during its whole flight course. Which one of the following statements is TRUE? (A) Airplane will experience less stability in pitch at supersonic speeds than at subsonic speeds (B) Airplane will feel no change in pitch stability (C) Airplane will experience more stability in pitch at supersonic speeds than at subsonic speeds (D) Pitch stability cannot be inferred from the information given *3 Which one of the following criteria leads to maximum turn rate and minimum radius in a level turn flight? A) Highest possible load factor and highest possible velocity B) Lowest possible load factor and lo
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