KerbalX

Description

A mod rotary wing aircraft called Duna Helicopter. Built with 65 of the finest parts, its root part is M2X.DropshipCockpit.

Built in the SPH in KSP version 1.3.1.

This is rather shaky, but working electric helicopter for flying around Duna provided you use FAR. Technically it should fly in stock aero too, but I have no idea how to control blade pitch in this case except of deployed/retracted states.
Maybe I’ll write a mod for cyclic/collective control which would also allow to drop all the reaction wheels.
 
Can accommodate 4 kerbal passengers and one pilot, features KIS container for flying stuff around.
 
Cruise speed: 70 m/s (if you can keep the attitude)
Ceiling: 7000 m
Flying time: 3 h
 
The vertical speed is controlled by action groups which increase and decrease angle of attack of rotor blades. You might want to adjust rotor speed for operating in different altitude ranges or with extra payload.

Also, this craft can fly on Kerbin as well, it is not very well balanced for it - could use shorter blades or less rotor RPM for better manoeuvring.
 
Update: Now uses bigger rotatrons on lower RPM setting, as a result a little bit less shaky.
 
Update-2: Now more advanced model is available, which actually makes delivery to Duna possible due to foldable rotor blades: Duna Helicopter-2

Details

• Type: SPH
• Class: aircraft
• Part Count: 65
• Mods: 13

Mods

• B9 Aerospace Parts Pack
• Ferram Aerospace Research
• Infernal Robotics Model Rework - Core Pack
• Kerbal Attachment System
• Kerbal Inventory System
• Mk2 Stockalike Expansion
• NEBULA EVA handrails pack.
• Procedural Fairings
• Procedural Wings
• Squad (stock)
• Stock Extension
• TAC Life Support (TACLS)
• TweakScale - Rescale Everything!