David Lockspeiser attempted to develop LDA (land development aircraft) general utility aircraft over two decades up to mid-1980s, with rear-mounted main wings and large canards, and rear-mounted engine with pusher propeller. A 70 percent-scale prototype flew 1971 as G-AVOR c/n LDA-01 and given PFA number 1346.
Construction was started at Shalford, UK, and the final assembly was done at Wisley. The two rear wing sections are interchangeable with each other and with the forward wing, which is mounted underneath the fuselage. The angular fuselage was capable of taking an underslung cargo pannier. A four unit undercarriage was fitted.
It was flown for the first time at Wisley on 24 August 1971 powered by a Continental C85-12. Initially it flew with a twin fin/rudder assembly but later a non-moving central fin was added.
In 1974, after a period of testing, the prototype was re-engined with a Lycoming O-320-D1A and given a conventional three unit undercarriage. The provision for the pannier was also removed. It appeared at the 1975 Paris Salon at Le Bourget France.
The intended full-size LDA-500 Boxer and larger LDA-1000 Boxer were designed.
Span: 29.00 ft
Fore plane span: 13.00 ft
Length: 22.06 ft
All Aero 