The Lockspeiser LDA-01 ("Land Development Aircraft") was a British seven-tenths scale research and development tandem wing aircraft,[1] which was designed and built by test pilot and engineer David Lockspeiser[2] to prove a concept for a low-cost utility transport.
The LDA-01 was a single-seat tandem-wing monoplane, fabric covered with metal construction. The foreplane had a common design to the separately-made port and starboard wings of the main plane, giving it half the area. The intention was to reduce the number of spare parts needed by re-using the same wing component interchangeably in each location.[3] The main wings were mounted at the rear-end of the box structure fuselage and the fore wing was attached underneath the front. The fuselage was fitted initially with a four-wheeled landing gear and was designed to be fitted with a detachable payload container to allow easy conversion between roles. The landing gear was changed later in development to a more conventional tricycle configuration. It was powered by a rear-mounted pusher engine. The LDA-01 G-AVOR first flew on 24 August 1971 at Wisley in Surrey, under the power of an 85 hp (63 kW) Continental C85 piston engine, but was later refitted with a more powerful Lycoming O-320 engine.
The aircraft (which by this time had been re-registered G-UTIL), and had been renamed the Boxer 500, was being modified to planned production configuration by Brooklands Aerospace at Old Sarum Airfield when it was destroyed in a fire on 16 January 1987.[4][5][6]
Specifications (LDA-01)
Data from ,[7] British Civil Aircraft since 1919,[8] Jane's All The World's Aircraft 1976–77.[9]
Propellers: 5 ft 9 in (1.76 m) diameter constant-speed metal pusher propeller
Performance
Cruise speed: 92 kn (110 mph, 170 km/h)
Stall speed: 42 kn (48 mph, 78 km/h)
Range: 140 nmi (160 mi, 260 km)
References
^"Flight International report" (PDF), Flight International: 673, 24 April 1975
^"Lockspeiser, David". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/odnb/9780198614128.013.108830. (Subscription or UK public library membership required.)
^Lockspeiser, David (9 September 1971). "Aerial Land Rover". Flight International: 404–405. Retrieved 23 April 2017.
^"GINFO Search Results, G-AVOR". CAA. Retrieved 7 January 2008.
^"GINFO Search Results, G-UTIL". CAA. Retrieved 7 January 2008.
^Walters, Brian (August 1991). "LDA – Phoenix or dead duck?". Air International. 41 (2): 71–72. ISSN 0306-5634.
^Taylor, John W.R., ed. (1975). Jane's all the world's aircraft, 1975–76 (66th annual ed.). New York: Franklin Watts Inc. ISBN978-0531032503.
^Jackson, A.J. (1974). British civil aircraft 1919–1972 Vol.3 (2nd ed.). London: Putnam. p. 259. ISBN0-370-10014-X.
^Taylor, John W. R., ed. (1976). Jane's all the World's Aircraft 1976–77. London: Jane's Yearbooks. p. 190. ISBN0-3540-0538-3.
External links
Wikimedia Commons has media related to Lockspeiser LDA-1.
lockspeiser, land, development, aircraft, british, seven, tenths, scale, research, development, tandem, wing, aircraft, which, designed, built, test, pilot, engineer, david, lockspeiser, prove, concept, cost, utility, transport, 01role, experimental, utility, . The Lockspeiser LDA 01 Land Development Aircraft was a British seven tenths scale research and development tandem wing aircraft 1 which was designed and built by test pilot and engineer David Lockspeiser 2 to prove a concept for a low cost utility transport LDA 01Role Experimental utility transportNational origin United KingdomManufacturer LockspeiserDesigner David LockspeiserFirst flight 24 August 1971Status DestroyedNumber built 1 Contents 1 Design and development 2 Specifications LDA 01 3 References 4 External linksDesign and development EditThe LDA 01 was a single seat tandem wing monoplane fabric covered with metal construction The foreplane had a common design to the separately made port and starboard wings of the main plane giving it half the area The intention was to reduce the number of spare parts needed by re using the same wing component interchangeably in each location 3 The main wings were mounted at the rear end of the box structure fuselage and the fore wing was attached underneath the front The fuselage was fitted initially with a four wheeled landing gear and was designed to be fitted with a detachable payload container to allow easy conversion between roles The landing gear was changed later in development to a more conventional tricycle configuration It was powered by a rear mounted pusher engine The LDA 01 G AVOR first flew on 24 August 1971 at Wisley in Surrey under the power of an 85 hp 63 kW Continental C85 piston engine but was later refitted with a more powerful Lycoming O 320 engine The aircraft which by this time had been re registered G UTIL and had been renamed the Boxer 500 was being modified to planned production configuration by Brooklands Aerospace at Old Sarum Airfield when it was destroyed in a fire on 16 January 1987 4 5 6 Specifications LDA 01 EditData from 7 British Civil Aircraft since 1919 8 Jane s All The World s Aircraft 1976 77 9 General characteristicsCrew 1 Length 22 ft 6 in 6 86 m Wingspan 13 ft 0 in 3 96 m foreplane Rearplane span 13 ft 4 0 m Height 10 ft 3 in 3 12 m Wing area 108 8 sq ft 10 11 m2 Aspect ratio Rear wing 7 Forward wing 4 5 Airfoil NACA 23012 Empty weight 1 237 lb 561 kg Gross weight 1 616 lb 733 kg Max takeoff weight 1 700 lb 771 kg Fuel capacity 138 L 36 US gal 30 imp gal in two fuel tanks fore and aft of the cargo bay Powerplant 1 Lycoming O 320 D1A 4 cyl air cooled horizontally opposed piston engine 160 hp 120 kW Propellers Hoffmann HO V72 Propellers 5 ft 9 in 1 76 m diameter constant speed metal pusher propellerPerformance Cruise speed 92 kn 110 mph 170 km h Stall speed 42 kn 48 mph 78 km h Range 140 nmi 160 mi 260 km References Edit Flight International report PDF Flight International 673 24 April 1975 Lockspeiser David Oxford Dictionary of National Biography online ed Oxford University Press doi 10 1093 odnb 9780198614128 013 108830 Subscription or UK public library membership required Lockspeiser David 9 September 1971 Aerial Land Rover Flight International 404 405 Retrieved 23 April 2017 GINFO Search Results G AVOR CAA Retrieved 7 January 2008 GINFO Search Results G UTIL CAA Retrieved 7 January 2008 Walters Brian August 1991 LDA Phoenix or dead duck Air International 41 2 71 72 ISSN 0306 5634 Taylor John W R ed 1975 Jane s all the world s aircraft 1975 76 66th annual ed New York Franklin Watts Inc ISBN 978 0531032503 Jackson A J 1974 British civil aircraft 1919 1972 Vol 3 2nd ed London Putnam p 259 ISBN 0 370 10014 X Taylor John W R ed 1976 Jane s all the World s Aircraft 1976 77 London Jane s Yearbooks p 190 ISBN 0 3540 0538 3 External links Edit Wikimedia Commons has media related to Lockspeiser LDA 1 Lockspeiser Aircraft The Boxer on YouTube Retrieved from https en wikipedia org w index php title Lockspeiser LDA 01 amp oldid 1126164624, wikipedia, wiki, book, books, library,
