You can modify this rotor to a single main rotor + tail rotor configuration, but it will be hard to hover nicely with just a keyboard. It will be painful to reconnect them, quite a lot and many are hidden inside. If not, those EAS-4 struct connectors will be disconnected. If you want to build your air frame, it's better merge other files into this craft file. Reaction wheels in the cockpit is currently disabled and switched to SAS only, you can activate them for more stable control or as a fake auto pilot, since the stock SAS function can't control those hinges under the rotor. (no payload, takes off at 50% - 60% collective) Hold H to fully power up the motor and use throttle to control collective. Why? the nodes on the rotor is deformed due to gravity and centrifugal force, when you leave the game, the deformation is saved, next time when you reload, the all parts are initialized on the deformed position, so the rotor is no longer in the shape it should be.ДЄlso, do not click revert to launch, this will cause the helicopter behave differently.

No reaction wheels needed!!! This rotor imitates how a real helicopter works and is very controllable! Each rotor is a fully functional fully articulated rotor, inter-rotor mechanism is simplified for less part count and avoid asymmetry of the rotor (rotor are not synchronized).Д«UG #22928: launching from hangar is all fine, but when you reload this craft in the wild, the rotor will not work properly.

!!! IN KSP 1.8 THE ROTOR IS LESS STABLE AND GENERATES LESS LIFT AS BEFORE, REASON UNKNOWN :( !!!

Kerbal space program helicopter