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For questions about the location of engines on an aircraft.

4 votes
4 answers
1k views

Why are overwing engines so rare?

This comment to a question about underwing vs rear-mounted engines notes the existence of a rarely used third option: overwing engines. There seems to be very few planes using those. What are the dis …
Eth's user avatar
  • 763
26 votes
2 answers
8k views

Are there helicopters with vertically mounted turbines?

On the helicopter representation in this answer, the turbine is horizontal, with gear required to drive the vertical-axis propeller. Are there helicopters where the turbine is vertical and directly …
Eth's user avatar
  • 763