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EK-General : 2017/MAR/13
Question
Q13. Describe, with the aid of sketches, how main propulsion efficiency can be improved by the addition of EACH of the following:
(a) ducted propeller (Kort nozzle) ;(5)
(b) vane or Grim wheel aft of the propeller. (5)
Asked in Year/Month/Ques No.