| Twin Eagle | |
|---|---|
| Role | AutogyroType of aircraft |
| National origin | United States |
| Manufacturer | Gyro-Kopp-Ters |
| Designer | Bob and Arden Kopp |
| Status | In production (2015) |
The Gyro-Kopp-Ters Twin Eagle is an American autogyro, designed by Bob and Arden Kopp and produced by their company, Gyro-Kopp-Ters of Lake City, Florida. The aircraft is supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.
Design and development
The Twin Eagle features a single main rotor, a two-seats-in tandem open cockpit with a windshield, tricycle landing gear with wheel pants and a four-cylinder, air-cooled, four-stroke, 120 hp (89 kW) Subaru EJ-22 automotive conversion engine in pusher configuration.
The aircraft mounts a 28 ft (8.5 m) diameter Dragon Wings main rotor made by Rotor Flight Dynamics, with a chord of 7 in (17.8 cm). Standard equipment fitted includes a hydraulic pre-rotator and dual controls. The propeller used is a four bladed Powerfin composite, ground adjustable type with a 68 in (1.73 m) diameter. The aircraft has an empty weight of 675 lb (306 kg) and a gross weight of 1,210 lb (549 kg), giving a useful load of 535 lb (243 kg).
The company estimates the assembly time from the supplied kit as 120 hours.
Operational history
By November 2017 two examples had been registered in the United States with the Federal Aviation Administration.
Specifications (Twin Eagle)
Data from Bayerl and Gyro-Kopp-Ters
General characteristics
- Crew: one
- Length: 14 ft 8 in (4.47 m)
- Width: 5 ft 3 in (1.60 m)
- Height: 9 ft 1 in (2.77 m)
- Empty weight: 675 lb (306 kg)
- Gross weight: 1,210 lb (549 kg)
- Fuel capacity: 16 U.S. gallons (61 L; 13 imp gal)
- Powerplant: 1 × Subaru EJ-22 four cylinder, air-cooled, four stroke automotive engine, 120 hp (89 kW)
- Main rotor diameter: 28 ft 0 in (8.53 m)
- Propellers: 4-bladed Powerfin composite, ground adjustable, 5 ft 8 in (1.73 m) diameter
Performance
- Maximum speed: 90 mph (140 km/h, 78 kn)
- Cruise speed: 60 mph (97 km/h, 52 kn)
- Never exceed speed: 120 mph (190 km/h, 100 kn)
- Rate of climb: 600 ft/min (3.0 m/s) at maximum gross weight
References
- ^ Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 182. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
- ^ Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 195. Flying Pages Europe SARL, 2015. ISSN 1368-485X
- ^ Gyro-Kopp-Ters (January 2, 2009). "Specifications". Archived from the original on September 21, 2013. Retrieved January 3, 2013.
- Federal Aviation Administration (November 18, 2017). "Make / Model Inquiry Results". Retrieved November 18, 2017.
External links
| Gyro-Kopp-Ters aircraft | |
|---|---|
| Autogyros | |