Gamera-S
Vehicle Specifications

Aircraft

 

•Modified from record setting Gamera IID Human Powered Helicopter

•Weight: 226 lb (132 lb vehicle + 94 lb pilot)

•Largest dimension: 116.5 ft (diagonal blade tip to blade tip)

•Footprint: 100 ft. x 100 ft.

 

Solar Power System

 

•Direct solar power, no batteries

•12 Solar panels, 3 per arm, wired into pairs of 6 panels

•Power: ≈ 1200 Watts (1.6 horsepower)

•Voltage: 21.5-22.5 V open circuit -> 16 volts under load

•Weight of solar panels: 25 lbs

 

Motors/Transmission

 

•Four electric motors: 10,000 rpm

•Custom gearbox

•Gear Ratio = 481.75 : 1

•Output RPM: 20

•Motor + Transmission weight: 14 lbs

 

Structure

 

•Carbon fiber truss-of-trusses design

•Four arms, 31 ft long

•Structure weight: 51 lb

 

Rotors

 

•Quadrotor design, 2 blades per rotor

•Rotor radius: 24 ft

•Rotor thrust: 60 lb per rotor @ 20 rpm

•Total rotor weight: 42.5 lbs

Scaled comparison of Gamera-S to a Boeing-737