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  1. 1/18 scale Hafner Rotabuggy flying Jeep Willys Royal Air Force 1943 Solido diecast conversion & scratchbuilt The Hafner Rotabuggy (formally known as the Blitz Buggy or Malcolm Rotaplane) was an experimental aircraft that was essentially a jeep (actually a Willys MB) combined with an autogyro. It was designed by Austrian born British designer Raul Hafner of the AFEE - Airborne Forces Experimental Establishment after their development of the Hafner Rotachute enjoyed some success. The prototype was built by the M.L. Aviation Company at White Waltham in 1942. One of several failed concepts for the equipping airborne forces, the effort and risk in getting the Rotabuggy into battle would probably have outweighed its utility. Initial testing showed that a Willys MB could be dropped from heights up to 2.35 metres (7.7 ft) without damage to the vehicle. A 12.4 metres (40.7 ft) diameter rotor was attached, along with a tail fairing and fins, but no rudders. The design work was carried out by AFEE staff, while most of the construction was undertaken by R. Malcolm Ltd, with H. Morris & Sons assisting in the manufacture of the rubber hub. The serial numbers RD123 and RD127 were allotted for the two Malcolm Blitz Buggys, although they were never to be used. The basic Jeep was fitted with a pylon to support the two-bladed rotor and a fairing to carry the tail surfaces. The Hafner Rotabuggy, as it became known, was to carry a pilot and a small load, together with a complete tankage of fuel and spare wheel, spare tank, tools and snow chains. The pilot occupied the starboard front seat, but an alternative arrangement for a second pilot was made in the port seat with dual controls. The tail fairing was a plywood monocoque structure attached at four points to the rear of the Jeep and cabin. Because consideration loads were transmitted through the fairing in some conditions of flight and in heavy landing, the Jeep was strengthened locally at the points of attachment. The twin-spar tailplane had trimming flaps on either side which were adjustable on the ground by means of turnbuckles. Large endplate fins were set at a slight angle in plain view to give incidence relative to the local airflow. Replacing the standard Jeep windscreen was a streamlined sheet metal framework with perspex sheets. The remainder of the cabin was built of plywood. Access doors with large perspex panels were fitted both sides. A hole in the cabin roof accommodated the pylon, with allowances for movement owing to the elastic suspension. In the cockpit a special dashboard on the starboard side contained an airspeed indicator, a rotor speed indicator, a sensitive altimeter and a turnand- slip indicator. A standard telephone system via the towrope allowed the pilot to communicate with the tug pilot, the amplifier and batteries being located behind the starboard seat. The Hafner Rotabuggy, camouflaged, carrying RAF roundels and a prototype ā€œPā€.
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