Texas_Flyer
Registered User
benefits of an
NASA has been studying the benefits of an over-wing engine for an ultra-high bypass ratio turbofan engine fueld by cryogenic H2 (LH2). According to NASA this provides reduced noise pollution relative to the ground, and also increases aerodynamic and structural efficiency. These benefits might hold true for a kerosine-fueld engine as well.
Also, having the engine monted on top of the wing protects the engine from damage during a landing with a gear malfunction.
I wonder if these benefits outweigh those of an aft-fuselage or empennage-mounted engine where each engine's thrust is closer to centerline and the engines are still protected from the ground during landings with gear malfunctions. Of course, the level of noise pollution would be higher than that of an over-wing mounted engine.
NASA has been studying the benefits of an over-wing engine for an ultra-high bypass ratio turbofan engine fueld by cryogenic H2 (LH2). According to NASA this provides reduced noise pollution relative to the ground, and also increases aerodynamic and structural efficiency. These benefits might hold true for a kerosine-fueld engine as well.
Also, having the engine monted on top of the wing protects the engine from damage during a landing with a gear malfunction.
I wonder if these benefits outweigh those of an aft-fuselage or empennage-mounted engine where each engine's thrust is closer to centerline and the engines are still protected from the ground during landings with gear malfunctions. Of course, the level of noise pollution would be higher than that of an over-wing mounted engine.