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[BG, 1.7.2] EAV-8 "Dragonfly"

A proof-of-concept small selfie drone quadcopter. The idea is inspired by the proposed Dragonfly mission to Titan, and by this craft. However this prototype is not directly designed for interplanetary missions.

I/K controls motor power.
AG1=horizontal control point
AG2=vertical control point (lock radial-in to hover, note that pitch control is reverted)
AG8=conduct experiments

100% Stock + DLC2, 39 parts. Root part is the RoveMate.

- Flight time: limitless (8min continuous + 3min recharge by RTG)
- Stable cruise speed: 14m/s (with -10deg pitch and max rotor power)
- Climb rate: 2m/s (maximum 4m/s: see Design Notes)
- Carries full set of repeatable science instruments

- This craft is optimized for horizontal cruise flight. For sake of this, the frontal rotor pair has a limited rotation rate of 315/360.
- You can set it back to 360/360 in-flight, so that it hovers better with a smaller tendency to fly forward, and its climb rate increases to 4m/s. But it will tend to pitch up in horizontal flight. I learned some important stuff about real rotorcraft from this phenomenon.
- This craft is fun to fly on Kerbin, but doesn’t work on Duna due to the low atmosphere density, not even with 4 blades on each rotor. Not tested on Eve and Laythe.

Wish you enjoy and happy taking selfies!