V-22 Osprey
coolmilitarystuff.com
coolmilitarystuff.com
It's one of the coolest looking aircraft, which had a really tough development and a very poor safety record[0]
[0] https://en.wikipedia.org/wiki/Accidents_and_incidents_involv...
https://en.wikipedia.org/wiki/List_of_accidents_and_incident...
I imagine that would be very hard to do if they were both independent engines but I read they are connected so that makes more sense
https://chinook-helicopter.com/standards/areas/drive_train.h... covers the gearboxes and driveshafts with https://www.chinook-helicopter.com/standards/areas/blade.htm... covering the rotor blades.