Planet Satellite

Brian Johnston, e-mail, 27.05.2012 19:35 I must say I would have major qualms about flying in a magneswium alloy aircraft! It is probably the case that the alloy used is not flammable, but remembering school chemistry lessons, having demonstrations of how fiercely magnesium burns, I would need a fair bit of convincing! reply

mike, e-mail, 04.07.2010 23:23 Anyone have the original plans? reply

Cholet, e-mail, 16.09.2009 14:02 The Planet Satellite designed by Major J.N. Dundas Heenan was a futuristic looking four-seater built of magnesium alloy in a true monocoque "teardrop" shaped fuselage with no internal reinforced structure[1]. The Satellite was powered by a 250 hp de Havilland Gipsy Queen 31 mounted amidships driving a two-blade Aeromatic "pusher" airscrew in the tail. Other notable features included "butterfly" tails and a retractable tricycle undercarriage, with the nosewheel retracting into a reinforced keel that ran the length of the underside of the fuselage[1]. Breaking with conventional design and manufacturing conventions, Heenan declared in the July 1948 Aviation News issue, that the 400 drawings made were in stark contrast with the standard of approximately 3,000 drawings required for a project of that complexity[2]. Financing for the Satellite was equally novel with a partnership established with the Distillers Company Ltd. (makers of Gordon's Gin and Black Label Whisky) wherein the Planet Aircraft Company operated as a subsidiary of a liquor company.[3] Built in the Robinson Redwing factory at Croydon, Purley Way, Surrey in 1947, the first prototype was taken to Redhill in 1948. The sleek light aircraft appeared at the S.B.A.C show at Farnborough in September 1948 and received the registration G-ALOI in April 1949. [edit] Testing and evaluation The Chief Test Pilot at RAE Farnborough, Group Captain H.J. Wilson (holder of the World speed Record in the Gloster Meteor), after several long runs down the runway, managed to get the Satellite airborne at Blackbushe. The first "hop" was followed by the collapse of the undercarriage. After repairs, the prototype was flown off the ground and after reaching an altitude of barely 20 ft was put down on the ground gently but nonetheless, the main keel had been cracked by the force of the landing. The conclusion of the Air Registration board investigating the "accident" was that the aircraft was badly understressed and would necessitate a complete redesign. [3] The manufacturers had already begun the production of a second prototype and despite an investment of £100,000, chose to wind down the program with no further attempts to fly the Planet Satellite. The second prototype, registered G-ALXP was abandoned but the completed fuselage was incorporated into the Firth Helicopter, built in 1952 at Thame. The single "flying" Satellite languished at Redhill until 1958 when it was unceremoniously broken up.[4] [edit] Specifications (Planet Satellite) Heavenly Body[3] Span: 33 ft 6 in Length: 26 ft 3 in Height: 9 ft 3 in Wing area: 153 ft² Aifoil: NACA 23000 series Weight (unloaded): 1,600 lbs Gross weight: 2,905 lb Maximum (estimated) speed: 208 mph Cruise (estimated)speed: 191 mph Maximum (estimated) range: 1,000 miles Absolute (estimated) ceiling: 22,000 ft Climb (estimated) rate: 1,450 ft /min Wipedia reply