Summary
The Jameson RJJ-1 Gipsy Hawk was a single-engine light aircraft intended to be homebuilt from plans. The prototype was designed and constructed in the U.S. by Richard Jameson in the late 1960s-early 1970s.
| RJJ-1 Gypsy Hawk | |
|---|---|
| |
| Jameson Gipsy Hawk at the Rishon LeZion Air and Space Museum | |
| Role | Single seat homebuilt light aircraft |
| National origin | U.S. |
| Designer | Richard J. Jameson |
| First flight | 1972 |
| Number built | 1 |
Design and development edit
The Gypsy Hawk was an all-metal low wing monoplane, constructed throughout from light alloy angle spars and frames under a light alloy skin. The wings and tailplane had constant chord and square tips. There was a fuel tank in the outer panel of each wing. The all-moving tail was set at the extreme rear fuselage and had external mass balances and an anti-servo tab. The fin and rudder were further forward, swept and with a fillet to lead the fin into the strongly sloping upper fuselage.[1]
The fuselage was a light alloy semi-monocoque with a nose-mounted 65 hp (48 kW) Continental A65 flat-four engine driving a fixed pitch, two-blade propeller. The single-seat cockpit placed the pilot over the wing under a two-piece blown canopy. The Gypsy Hawk had a fixed, unfaired tricycle undercarriage.[1]
Construction of the Gypsy Hawk began about 1968 and the first flight was in 1972.[1][2]
Operational history edit
By the end of February 1974 the Gypsy Hawk had logged 200 hours of testing[1] but there is no record of other examples.[2]
By November 2012 the sole example was no longer registered in the United States with the Federal Aviation Administration and may no longer exist.[3]
Specifications edit
Data from Jane's All the World's Aircraft 1974-75[1]
General characteristics
- Capacity: one
- Length: 16 ft 1 in (4.90 m)
- Wingspan: 18 ft 8 in (5.69 m)
- Height: 6 ft 9 in (2.06 m)
- Airfoil: NACA 747A315
- Empty weight: 520 lb (236 kg)
- Max takeoff weight: 820 lb (372 kg)
- Fuel capacity: c.20 US gal (76 L; 17 Imp gal)
- Powerplant: 1 × Continental A65 air-cooled flat four piston, 65 hp (48 kW)
- Propellers: 2-bladed
Performance
- Maximum speed: 125 mph (201 km/h, 109 kn)
- Cruise speed: 115 mph (185 km/h, 100 kn)
- Stall speed: 65 mph (105 km/h, 56 kn)
- Endurance: 4 hr
- Rate of climb: 900 ft/min (4.6 m/s) maximum, at sea level
- Take-off run: 800 ft (244 m)
- Landing Speed: 75-80 mph (121-129 km/h; 65-69 kn)
References edit
External links edit
- NACA 747A315 airfoil