[ME-099] Which engine is the 'Critical Engine' on the DA-42 and what is the aerodynamic reason for it? (Ref: SOP Page 32)
A) Because both propellers rotate clockwise, the LEFT engine is the critical engine due to P-factor (failure of the left engine creates a longer asymmetric thrust moment arm from the right engine)
B) There is no critical engine because the propellers are counter-rotating
C) The RIGHT engine is the critical engine because the fuel pump is on the right engine
D) The RIGHT engine is the critical engine because both propellers rotate counter-clockwise
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Correct Answer: A) Because both propellers rotate clockwise, the LEFT engine is the critical engine due to P-factor (failure of the left engine creates a longer asymmetric thrust moment arm from the right engine)