Trifeet UAV
Trifeet UAVs are Chinese UAVs developed by Beijing Beijing Trifeet Aero Electronics Co., Ltd. (Trifeet, 北京三足航空电子有限公司). As of 2013, a total of four have been identified.
Swan 01
Swan 01 UAV is an UAV in twin-boom layout with tricycle landing gear. Propulsion is provided by a two-blade propeller driven by a pusher engine mounted at the rear end of the fuselage. Various engines can be utilized, ranging from 150 cc to 220 cc, and the aircraft is constructed from composite material.[1] Specification:[2]
- Empty weight: 35–42 kg
- Max take-off weight: 85 kg
- Wingspan: 6 m
- Length: 3.224 m
- Wing area: 2.64 m2
- Payload: 10–20 kg
- Launch: taxiing
- Recovery: taxiing
- Take-off distance: 130 m
- Landing distance: 200 m
- Speed: 70–160 km/h
- Cruise speed: 130 km/h
- Stall speed: 65 km/h
- Fuel: 30 L
- Ceiling: 4 km
- Endurance: 6–8 h
Swan 02
Swan 02 is an UAV of conventional layout with T-tail. Propulsion is provided by a two-blade propeller driven by a 50 cc tractor engine mounted in the nose, and the aircraft is constructed from composite material and has a tiny winglet on each wing.[3] Specification:[4]
- Empty weight: 11 kg
- Max take-off weight: 25 kg
- Wingspan: 3.28 m
- Length: 2.1 m
- Payload: 5 kg
- Launch: taxiing
- Recovery: taxiing
- Take-off distance: 70 m
- Landing distance: 100 m
- Speed: 70–150 km/h
- Cruise speed: 120 km/h
- Stall speed: 70 km/h
- Fuel: 9 L
- Ceiling: 4 km
- Endurance: > 6 h
Swan 04
Swan 04 is a micro air vehicle (MAV) in blended wing body layout without any vertical rudder but with winglets. Swan 04 is constructed of epoxy with polycarbonate skin. Propulsion is provided by a two-blade propeller driven by a pusher engine mounted at the rear end of the empennage. Specification:[5]
- Ceiling: 2 km
- Cruise speed: 70 km/h
- Max speed: 120 km/h
- Endurance: 45–60 min
- Remote control radius: 10 km
- Max take-off weight: 3 kg
- Normal operating altitude: 50–500 m
- Ceiling: 1 km
- Launch: hand, catapult, taxiing
- Recovery: taxiing, parachute
- Relative humidity: 92–98 %
- Max wind scale allowed for operation: 3
- Operating temperature: -20 to 55 °C
- Storage temperature: -45 to 65 °C
- Shock limit: 6 g
- Vibration limit: 2 g
Swan 05
Swan 05 is a MAV of conventional layout. Externally, Swan 05 resembles AeroVironment RQ-11 Raven and the two UAVs have identical layout. Swan 05 is constructed of fiberglass. Specification:[6]
- Length: 1.18 m
- Wingspan: 1.8 m
- Height: 0.45 m
- Max take-off weight: 2.8 kg
- Remote control radius: 15 km
- Ceiling: 1.5 km
- Normal operating altitude: 500 m
- Max speed: 90 km/h
- Cruise speed: 60 km/h
- Take-off speed: 50 km/h
- Stall speed: 40 km/h
- Endurance: 1.2 h