Table 1 Technical specifications rotor-wing RPA versus manned helicopter (EC135 P2+)
Feature | Rotor-wing RPA (prototype config) | EC135 P2+ (HEMS config) |
|---|---|---|
Size | 0.84 m × 0.30 m | Length 12.19 m, height 3.51 m |
Weight (empty) | 1.47 kg | 1455 kg |
Rotor diameter | 0.84 m | 10.20 m |
Downwash | Negligible | Strong |
Noise | Humming | >85 dbA |
Max payload | 1.53 kg | 965 kg |
Max air speed | ~35 km/h | 254 km/h |
Power/fuel | Electrical (DC), rechargeable lithium-ion battery | Jet A-1 |
Max take-off weight | 3 kg | 2835 kg |
Range | Line of sight | Depending on payload and weather conditions, approximately 615 km |
Rotary system | 6 rotors, 6 DC motors | 1 rotor, 2 x Pratt & Whitney PW 206 B2 (463 kW) |
Flight endurance | ~15 min | 166 min (max fuel, ideal weather conditions, 3 crew, standard HEMS configuration) |
Operation style | Unmanned, remote controlled | Manned, 3 crew (pilot, HEMS crew member, physician) |
Take-off/landing | From landing gear | From landing gear (skid) |
Landing site requirement | 1 m × 1 m | 25 m × 25 m |