Formula: {RPM_Engine_XCopter = undefined}

KARI Smart Tiltrotor UAV Properties
~ Weight 2000 lb = 907 kg
~ Max Speed 270 knots = 500 km/h
~ Span (Tip to Tip) 22.3 ft = 6.8m
~ Fuselage Length 16.4 ft = 5 m
~ Rotor Type Gimbal
~ Number of Blades (Per Rotor) 3
~ Rotor Diameter 9.4 ft = 2.9m
~ Rotor Speed (Cruise) 1284 RPM
~ Rotor Speed (Hover) 1605 RPM

GTMax / Yamaha RMax
~ Rotor Diameter: 10.2 ft = 3.1m
~ Length: 11.9 ft (including rotor) = 3.6m
~ Gross Weight: 205 lb = 93kg
~ Payload: >66 lb = 30kg
~ Fuel: Gasoline
~ Engine: 2 Cylinder, Water Cooled, 246cc
~ Displacement: 21 hp
~ Endurance: approximately 60 min (hover)
~ Generator and Battery: 12V
~ Electric Starter
~ Rotor Speed: normally 850 RPM
~ Rotor Speed: varied from 700(required saturated collective pitch in order to hover.) to 950 RPM

AirScooter G70 UAV with Internal Combustion Engine
~ Main Rotor Diameter: 69.60 in. (1,768m)
~ Number of blades: 2
~ Rotor Hub Type: Both Spring Loaded Teetering (semi-rigid), Upper Rotor Viscious Damped, Lower Rotor Friction Damped
~ Main Rotor Blade Type: Graphite composite blade, non-twisted semi-symmetrical high lift airfoil
~ Main Rotor Max. Speed: 1125 rpm
~ Rotor Clutch: Sprag type clutch Installed on 2-Stage
~ Main Rotor Control Type: 'Beller', Cyclic and Collective (mast mounted) Upper Rotor, Collective Only Lower Rotor
~ Pitch and Roll Control:±10° Cyclic on Upper Rotor
~ Yaw Control:±5° Collective (both rotors)
~ Altitude Control: ±5° Collective (both rotors)
~ RPM Control: Throttle Governor
~ Transmission: 2 Stage, Spur Gears, Steel Pinions - Nylon Bulls, All Ball Bearing
~ Transmission Ratio: 8.533:1
~ Engine Type: 2 Cycle, 2 Cylinder Opposed, Gas with Air-Cooling and Electric Start
~ Engine Mount: Isolated, Four Point (not dyne-focal)
~ Engine Size: 86 cc
~ Engine Power: 6.5 Shaft Horse Power @ 9000rpm after Muffling and Cooling
~ Engine Clutch: Centrifical, Isolated from Engine by Using Constant Velocity Thomas Type Couplings
~ Fuel: Gas and Oil Mix
~ Fuel Capacity: 64 Fluid Ounces = 4lb = 1.8 kg
~ Height: 44.92 in. (91,5cm)
~ Weight (empty): 32 lbs
~ Duration (hover): 45 min (2-hour Battery for Controls)
~ Payload: 10 lbs = 4.5kg
~ Total Thrust: 70 lbs. at sea level (70° Day)
~ Max Speed @ 1000 RPM: 50 MPH (.3 Advance Ratio)
~ Noise Level: Approximately 100 db at 10 feet (equivalent to standard weed eater)

catch ~RPM_Engine_Xi ~XCopter!