Ellingston, together with Earle Hansen, constructed the aircraft, with Hansen making the maiden flight on April 23, 1938.[1] It was a single-seat low-wing monoplane, fitted with a retractable undercarriage, and was powered by a 70 hp (52 kW) LeBlond 90-7D radial engine, fitted with a two-bladed tractor propeller.[1][2][3] The primary structure was constructed from 4130 chromoly steel tubing.[2]
The aircraft's most notable feature was its telescopic wings, which could vary in span between 25 ft (7.6 m) and 32 ft (9.8 m), with it being possible to vary the wingspan while in flight. The maximum speed of the aircraft varied from 165 mph (266 km/h) with the wings retracted, to 110 mph (180 km/h) with the wings extended.[3]
An article in the December 1939 issue of Popular Aviation magazine stated that Ellingston was working on a twin-engined transport aircraft, which would also incorporate variable span, construction of which was scheduled to begin that Winter.[3]
^ ab"Con Ellingston Special". Aviation. Vol. 37, no. 11. New York City, USA: McGraw-Hill Publishing Company, Inc. November 1938. p. 45 – via Archive.org.
^ abcdArentz, Robert (December 1939). "Retractable Wing". Popular Aviation. Vol. XXV, no. 6. Chicago, IL: Ziff-Davis Publishing Company. pp. 53, 83.
May 04, 2024
ellingston, special, variable, geometry, aircraft, designed, cornwallis, ellingston, great, falls, montana, late, 1930s, ellingston, retractable, wing, monoplane, role, experimental, aircraft, national, origin, united, states, designer, cornwallis, ellingston,. The Ellingston Special was a variable geometry aircraft designed by Cornwallis Con Ellingston of Great Falls Montana in the late 1930s Ellingston Special Ellingston retractable wing monoplane Role Experimental aircraft National origin United States Designer Cornwallis Con Ellingston First flight April 23 1938 Number built 1 Contents 1 Background 2 Specifications Special 3 See also 4 ReferencesBackground editEllingston together with Earle Hansen constructed the aircraft with Hansen making the maiden flight on April 23 1938 1 It was a single seat low wing monoplane fitted with a retractable undercarriage and was powered by a 70 hp 52 kW LeBlond 90 7D radial engine fitted with a two bladed tractor propeller 1 2 3 The primary structure was constructed from 4130 chromoly steel tubing 2 The aircraft s most notable feature was its telescopic wings which could vary in span between 25 ft 7 6 m and 32 ft 9 8 m with it being possible to vary the wingspan while in flight The maximum speed of the aircraft varied from 165 mph 266 km h with the wings retracted to 110 mph 180 km h with the wings extended 3 An article in the December 1939 issue of Popular Aviation magazine stated that Ellingston was working on a twin engined transport aircraft which would also incorporate variable span construction of which was scheduled to begin that Winter 3 Specifications Special editData from Popular Aviation 3 General characteristicsCrew 1 Wingspan 25 ft 7 6 m wings retracted 32 ft 9 8 m wings extended Airfoil Clark Y Powerplant 1 LeBlond 90 7D air cool radial piston 90 hp 67 kW Propellers 2 bladed Performance Maximum speed 165 mph 266 km h 143 kn wings retracted 110 mph 180 km h wings extended Stall speed 65 mph 105 km h 56 kn wings retracted 40 mph 64 km h wings extended See also editAircraft of comparable role configuration and era Makhonine Mak 10 Nikitin Shevchenko IS Schmeidler SN 2 Stemal IIIReferences edit a b Powell Ferrell F March 1996 Mystery Plane Vintage Airplane Vol 24 no 3 Oshkosh WI Experimental Aircraft Association pp 26 27 a b Con Ellingston Special Aviation Vol 37 no 11 New York City USA McGraw Hill Publishing Company Inc November 1938 p 45 via Archive org a b c d Arentz Robert December 1939 Retractable Wing Popular Aviation Vol XXV no 6 Chicago IL Ziff Davis Publishing Company pp 53 83 Retrieved from https en wikipedia org w index php title Ellingston Special amp oldid 1186862142, wikipedia, wiki, book, books, library,
