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Construction began in
February 1975, and was completed by July. Taxying trials took place in August 1975, however they revealed issues with the craft. It failed to achieve take-off due to the high thrust-line of the propeller and the small moment of the tail-plane. During the following two months,
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was a wire-braced high-wing monoplane, with a pylon-mounted propeller, and had no unconventional features. The wing had an aspect ratio of 30, and a relatively high wing-loading. The wing could increase its dihedral under flight load, changing from 6° when static, to 10° in flight. Lateral control
146:. The wing had a single wooden box-spar, with a secondary structure made from spruce, balsa and polystyrene. The fuselage was of the pod and boom type, a primary structure made using aluminium alloy, and a secondary structure of balsa. The empennage featured a small all-flying tailplane, or
130:, reaching an altitude of 60 ft (18 m) in 5 minutes, at what was described as "a small but realistic rate of climb." If attempting the Kremer course, such altitude would permit greater room for manoeuvres without suffering from
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changes made to the aircraft included the strengthening of the rear fuselage, increasing the moment arm of the tail-plane, and changing the pylon-mounted propeller from a pusher to a tractor configuration.
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An emphasis was placed on it being a practical, easily-built, machine, with the construction requiring a comparatively low amount of work hours. It was intended to fly outside of
150:, and a large fin, half of was the rudder. The entire aircraft was covered in Melinex. The pilot was in a recumbent cycling position, and powered the plyon-mounted propeller.
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wrote that further flight tests may take place from the Spring of 1977 onward. An article in the
February 1977 issue
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then on offer. Its designer, Roger Hardy, previously had experience with three other HPAs; the
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523:. Hemel Hempstead, Herts, UK: Model & Allied Publications Ltd. pp. 144–145.
508:. Hemel Hempstead, Herts, UK: Model & Allied Publications Ltd. pp. 102–104.
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462:. Hemel Hempstead, Herts, UK: Model & Allied Publications Ltd. p. 294.
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The aircraft was developed with the specific goal of winning the £50,000
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441:. Proceedings of the Man-Powered Aircraft Group Symposium. London, UK.
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1.18 lb/sq ft (5.8 kg/m) at maximum take-off weight
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stated that Ron Frost had taken over development of the aircraft.
406:. London: Macdonald and Jane's Publishers Ltd. pp. 487–488.
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9 ft 7 in (2.92 m) with propeller horiztonal
504:
Moulton, Ron (February 1977). "Progress with Man Power".
480:. Oxford, England: Pergamon Press Ltd. pp. 298–299.
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2-bladed fixed pitch, 9 ft (2.7 m) diameter
519:Moulton, Ron (March 1976). "Man powered aircraft".
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Aircraft of comparable role, configuration, and era
458:(May 1975). "Progress with man powered flight".
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16:1970s United Kingdom human-powered aircraft
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403:Jane's all the world's aircraft 1976-77
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195:24 ft 1.50 in (7.3533 m)
175:Jane's all the world's aircraft 1976-77
158:Jane's all the world's aircraft 1976-77
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291:31 mph (50 km/h, 27 kn)
282:16 mph (26 km/h, 14 kn)
276:19 mph (31 km/h, 17 kn)
270:23 mph (37 km/h, 20 kn)
213:213.50 sq ft (19.835 m)
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59:Prestwick Man Powered Aircraft Group
7:
556:1970s British experimental aircraft
439:The optimised man-powered aircraft
14:
478:The history of man-powered flight
400:Taylor, John W. R., ed. (1976).
551:Single-engined tractor aircraft
87:Prestwick International Airport
368:List of human-powered aircraft
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437:Hardy, R.J. (February 1975).
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249:252 lb (114 kg)
243:232 lb (105 kg)
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237:95 lb (43 kg)
180:General characteristics
541:Human-powered aircraft
201:80 ft (24 m)
101:Design and development
83:human-powered aircraft
37:Human-powered aircraft
144:differential ailerons
476:Reay, D.A. (1977).
247:Max takeoff weight:
546:High-wing aircraft
323:Gossamer Albatross
287:Never exceed speed
231:Wortmann FX63-137
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521:AeroModeller
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417:. Retrieved
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107:Kremer prize
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65:Number built
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315:Lady Godiva
261:Performance
253:Propellers:
535:Categories
487:0080217389
413:0354005383
374:References
329:MacCready
321:MacCready
211:Wing area:
148:stabilator
117:, and the
25:Prestwick
419:April 23,
347:Chrysalis
199:Wingspan:
173:Data from
139:Dragonfly
78:Dragonfly
27:Dragonfly
355:Daedalus
302:See also
95:Scotland
339:BURD II
227:Airfoil
205:Height:
193:Length:
120:Mercury
115:Jupiter
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111:SUMPAC
81:was a
313:Kohm
187:Crew:
33:Role
482:ISBN
421:2023
408:ISBN
353:MIT
345:MIT
337:MIT
137:The
75:The
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