主要技术参数
Wingspan: 16"
Weight: next to nothing
Length: 12 1/4"
Manufacturer: Wow Wee
I have always been interested in ornithopters, but other projects always seem to require my time or money first... that is, until I saw this Dragonfly! Priced at just under $50.00 at Radio Shack (Toys R Us and other stores too) and out of the box fully assembled, the Dragonfly allowed me to experience the challenge of flying an ornithopter at long last!
Wingspan: 12"
Weight: 17g
Motor: KPOO, or M20LV a 10mm diameter hot brushed motor.
Radio: JMP actuator combo.
Battery: 1 X 145mAh LiPoly cell.
Gear ratio: 33:1 using Didel gears in a custom gearbox. Bushes are Didels and shafts are hardened drill blanks.
"Crank ratio": 4:1 as per the FreeBird this model is based on. The crank geometry is a little different.