Grudieaire GH-4
The Grudieaire GH-4 is an American autogyro that was designed for homebuilt construction.
| GH-4 | |
|---|---|
| Role | Autogyro |
| National origin | United States |
| Designer | Grudieaire |
Design and development
The GH-4 is a single seat autogyro constructed of welded steel tubing with aircraft fabric covering. The GH-4 uses Timken roller bearings and spruce wood core rotor blades with composite covering.[1]
Variants
- Grudieaire GH-4
- Homebuilt
- Vortech B20
Specifications (GH-4)
Data from Air Progress
General characteristics
- Crew: 1
- Length: 10 ft 2 in (3.10 m)
- Height: 7 ft 1 in (2.16 m)
- Empty weight: 240 lb (109 kg)
- Gross weight: 450 lb (204 kg)
- Fuel capacity: 5 U.S. gallons (19 L; 4.2 imp gal)
- Main rotor diameter: × 20 ft 4 in (6.20 m)
Performance
- Maximum speed: 65 kn (75 mph, 121 km/h)
- Cruise speed: 48 kn (55 mph, 89 km/h)
- Range: 61 nmi (70 mi, 110 km)
- Rate of climb: 1,650 ft/min (8.4 m/s)
References
- Air Progress Sport Aircraft: 78. Winter 1969.
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