What effect does high density altitude, as compared to low density altitude, have on propeller efficiency and why?

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(Refer to figure 41.) Determine the total distance required for takeoff to clear a 50-foot obstacle.

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OAT ……………………………………………………………… Std
Pressure altitude ……………………………………….. 4,000 ft
Takeoff weight …………………………………………. 2,800 lb
Headwind component …………………………………… Calm

 

(Refer to figure 8.) Determine the pressure altitude at an airport that is 3,563 feet MSL with an altimeter setting of 29.96.

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