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Ahh, that makes more sense. Thanks!
by jlgreco 14y ago
Ahh, that makes more sense. Thanks!
- WalterBright 14y agoEarly jet aircraft used a ground cart to provide power to get the engines started. Evidently adding the APU saves enough money to justify its significant weight.
- tfe 14y agoI think it's less about money and more about stuff like: - backup power for emergencies - allowing attempted engine restarts in the air - allowing the airplane to be self-sufficient should it be forced to land somewhere without ground equipment (or big enough ground equipment)