Jurca Gnatsum
| Jurca M.J.7. Gnatsum | |
|---|---|
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| Role | Homebuilt near scale replica warbird |
| National origin | France |
| Designer | Marcel Jurca |
| First flight | 1969 |
| Number built | 25+ |
| Variants | Falconar SAL Mustang |
The Jurca Gnatsum is a French homebuilt near scale replica aircraft based on the North American Mustang.[1]
Design & Development
The Gnatsum (Mustang spelled backward) is one of many wooden homebuilt designs from Romainian designer Marcel Jurca. Jurca, a Henschel Hs 129 pilot in World War II, expanded his warbird replica designs to include the allied P-51.[2]
The Gnatsum is a low-wing cantilever monoplane an enclosed single-seat cockpit and manually retractable tailwheel landing gear based on that of the Jurca Sirocco.[3] Suitable for a number of engines around 200 hp, plans for the Gnatsum are available as the 2/3 scale MJ.7 and the 3/4 scale MJ.77, as well as the M.J.70 full-size representation. All versions are constructed from wood with fabric covering, and manufacturing rights to the kit aircraft were acquired by Falconar Avia.[4] although the company does not currently offer the aircraft design.
Some of the engines suitable for the MJ.7 Gnatsum series are:-
- 200-hp Ranger 6-440C-5 inline engine
- 125-hp Menasco C4
- 130-hp de Havilland Gipsy MajorI
- 125 to 160-hp Rambler aluminum block in-line 6
- General Motors aluminum V-8
Variants
- MJ-7
- 2/3 scale variant
- MJ-7S Solo
- Single-seat advanced trainer version of MJ-7, the under-belly scoop inherited from the Mustang design was removed.
- MJ-77
- 3/4 scale Mustang variant that requires an engine of 250 to 600 hp (186 to 447 kW).[5]
- MJ-70
- Full-scale variant (under development in 1996)
Specifications (Jurca M.J.77 Gnatsum)
Data from [6]
General characteristics
- Crew: 1 Pilot
- Capacity: 1 (small) passenger
- Length: 6.53 m (21 ft 5 in)
- Wingspan: 8.43 m (27 ft 8 in)
- Wing area: 13.5 m2 (145 sq ft)
- Empty weight: 998 kg (2,200 lb)
- Gross weight: 1,297 kg (2,860 lb)
- Fuel capacity: 50 U.S. gallons (190 L; 42 imp gal)
- Powerplant: 1 × Geschwender , 260 kW (350 hp)
- Propellers: 4-bladed
Performance
- Maximum speed: 465 km/h; 251 kn (289 mph)
- Cruise speed: 370 km/h; 200 kn (230 mph)
- Stall speed: 105 km/h; 56 kn (65 mph)
- Range: 805 km; 434 nmi (500 mi)
- Rate of climb: 7.6 m/s (1,500 ft/min)
See also
- Aircraft of comparable role, configuration and era
- Bonsall DB-1 Mustang
- FK-Lightplanes SW51 Mustang
- Linn Mini Mustang
- Papa 51 Thunder Mustang
- Stewart S-51D Mustang
- Titan T-51 Mustang
- W.A.R. P-51 Mustang
References
- ↑ "All these planes you can build from plans". Popular Science: 99. June 1970.
- ↑ Nick Stasinos (February 1972). "Marcel's Mini Fighters". Plane & Pilot.
- ↑ Sport Aviation: 35. Aug 1965. Missing or empty
|title=(help) - ↑ Air Trails: 59. Summer 1971. Missing or empty
|title=(help) - ↑ Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 94. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
- ↑ "Jurca M.J-77 Mustang (75%)". Pilotfriend.com. Retrieved 2012-09-26.
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 547.
- Janes.com
- Manufacturer's website
- www.aircraftworlddirectory.com