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PropulsionSystems

1 byte added, 13:38, 30 March 2016
m
→‎Number of Engines
** One main engine with one propeller
* Emergency power:
** One main engine with one propeller, and** A a small wing engine with a small propeller
* Redundant power:
** One main engine with dual electric drive, two propellers and battery backup, OR
** Two main engines with two propellers (drive systems are unimportant)