Ball-Bartoe Jetwing

The Ball-Bartoe JW-1 Jetwing was a US research aircraft flown in the 1970s to investigate blown wing technology.

JW-1 Jetwing
Role Research aircraft
Manufacturer Ball-Bartoe
Designer Otto Bartoe
First flight 11 July 1977
Number built 1
Augmentor detail
Augmentor detail

Design and development

The Jetwing was a small, mid-wing design powered by a turbofan and fitted with tail-wheel undercarriage. The upper surface of the swept wings incorporated a slot along 70% span, through which air from the engine's fan stage could be discharged. Mounted above this slot was a small secondary airfoil called an "augmentor", intended to direct the discharged airflow over the wing. With this arrangement, it was found that the aircraft remained controllable at airspeeds as low as 34.76 kn (64.38 km/h; 40.00 mph).

Following the test program, the aircraft was donated to the University of Tennessee Space Institute in Tullahoma, which donated the Jetwing to the Wings Over the Rockies Air and Space Museum in Denver, Colorado in 2007.

Specifications (Jetwing)

General characteristics

  • Crew: 1
  • Length: 29 ft 0 in (8.84 m)
  • Wingspan: 21 ft 9 in (6.63 m)
  • Height: 6 ft 1 in (1.85 m)
  • Wing area: 105 sq ft (9.8 m2)
  • Empty weight: 2,500 lb (1,134 kg)
  • Gross weight: 3,336 lb (1,513 kg)
  • Powerplant: 1 × Pratt & Whitney Canada JT15D-1 turbofan, 2,200 lbf (9.8 kN) thrust

Performance

  • Maximum speed: 347 kn (399 mph, 643 km/h)
  • Range: 120 nmi (140 mi, 220 km)
  • Endurance: 41 minutes
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References
  • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 121.
  • World Aircraft Information Files. London: Bright Star Publishing. pp. File 890 Sheet 02.
  • Aeroplane Monthly "Whispering Jetwing". Stamford Street, London, England: IPC Transport Press Ltd, and Bryan Cambray, FIMI. pp. 366–369, July 1978, Vol. 6, No. 7.
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