AVIA101 Lecture Notes - Lecture 3: Direct Air, Aileron, Lift-Induced Drag
Document Summary
Experimental method: set up in cruise, reduce power in 100 rpm intervals and maintain level flight (back pressure) Keep doing it till you can no longer maintain level flight with that power (if too low airplane will descend: next, lean mixture to best economy. Safety issues: cooling of the engine (nose high attitude: less direct air coming to engine and engine cannot cool, traffic avoidance. Rich more fuel being burned: weight. More weight = more lift needed = more power = less endurance/range: cog. For range: highest altitude is best (throttle should be full) For endurance: low altitude is best: turbulence. Bad, causes plane to enter slow flight (more power is needed, reduces endurance) 1/3 of the bank angle for medium or less. Slow flight is the range of air speed b/w speeds for max endurance and stall speed. Induced drag increases during slow flight (parasitic is low)
