Built specially to compete for the Kremer prize of £5,000 for man-powered flight, design started in July 1960 and actual construction in January 1961. It was finished in September 1961.
First flown on 9 November 1961 at Lasham, the first flight was about 50 yds at a height of about six feet over level ground and in still air. A single seat, fixed wing monoplane with the propellor driven by pedalling.
By 1962 SUMPAC was flying up to 650 yds and executing turns.
In 1964 it was modified in various details and given a different belt drive mechanism. In flight test it was damaged after a stall at about 30 ft.
The machine was donated to the Shuttleworth Trust where it was displayed at Old Warden. It was allocated BAPC.7.
Wingspan: 80.00 ft
Wing area: 300 sq.ft
Aspect ratio: 21:1
Empty weight: 128 sq.ft
All Aero 