Engineering:Whigham GW-7
| GW-7 | |
|---|---|
| Role | Glider |
| National origin | United States |
| Designer | Gene Whigham |
| First flight | 1987 |
| Status | No longer in production |
| Number built | one |
The Whigham GW-7 is an American mid-wing, single-seat, 15 metre class glider that was designed and constructed by Gene Whigham, a retired Convair flight test engineer.[1][2]
Design and development
Whigham's last glider design was the GW-7. The aircraft was completed and first flew in 1987.[1][2]
The GW-7 is of all metal construction, has a 15 m (49.2 ft) wing span and employs a NASA NLF(1)-0215F airfoil. The flaps and ailerons are interconnected. The flaps travel +/-10° in normal flight in concert with the ailerons and then can be deployed to 60° for glidepath control on landing.[1][3]
Only one GW-7 was constructed and it was registered with the Federal Aviation Administration as an Experimental - Amateur-built.[2]
Operational history
In July 2011 the sole GW-7 built was still on the FAA registry and owned by Donald Macey of Fallon, Nevada.[2]
Specifications (GW-7)
Data from Sailplane Directory[1]
General characteristics
- Crew: one
- Wingspan: 49 ft 3 in (15.0 m)
- Wing area: 92 sq ft (8.5 m2)
- Aspect ratio: 27:1
- Airfoil: NASA NLF(1)-0215F
- Empty weight: 333 lb (151 kg)
- Gross weight: 532 lb (241 kg)
Performance
- Maximum glide ratio: 39:1 at 48 mph (77 km/h)
- Rate of sink: 110 ft/min (0.56 m/s)
- Wing loading: 5.78 lb/sq ft (28.2 kg/m2)
See also
Related lists
References
- ↑ 1.0 1.1 1.2 1.3 Activate Media (2006). "GW-7 Whigham". http://www.sailplanedirectory.com/PlaneDetails.cfm?planeID=132. Retrieved 5 July 2011.
- ↑ 2.0 2.1 2.2 2.3 Federal Aviation Administration (July 2011). "Make / Model Inquiry Results N6198". http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=6198. Retrieved 5 July 2011.
- ↑ Lednicer, David (2010). "The Incomplete Guide to Airfoil Usage". http://www.ae.illinois.edu/m-selig/ads/aircraft.html. Retrieved 1 July 2011.
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