3 ms·
Isn't altitude ultimately a function of energy? If you're decreasing altitude wouldn't that be a decent amount of recovery? Gas turbines need to keep running t
by manigandham 6y ago
Isn't altitude ultimately a function of energy? If you're decreasing altitude wouldn't that be a decent amount of recovery?
Gas turbines need to keep running to sustain combustion but electric motors can start and stop instantly with current flow; it seems possible to use this as part of the dynamic control of the aircraft.
- dogma1138 6y agoYou don’t change altitude frequently enough and even if you could recover 80% of the energy you spent on reaching cruising altitude when you perform your landing approach it won’t be much, and probably won’t be worth the extra complexity and weight of an energy recovery system. Unless we’re talking about very short flights the majority of your energy would be expanded at cruising altitude especially since electric engines have a fairly flat efficiency curve.