1. Aircraft use 100% power in situations other than takeoff, so it's hard to see how you could lower peak power/use smaller engines just by eliminating takeoff.

1. Aircraft use 100% power in situations other than takeoff, so it's hard to see how you could lower peak power/use smaller engines just by eliminating takeoff. 2. Typical aircraft takeoff roll is under 30 seconds, and most aircraft have 3hours+ endurance, so you'd be extending the range of the aircraft by < 1/360th.