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Rubik R-26 Góbé
The Rubik R-26 Góbé is a family of Hungarian shoulder-wing, two-seat training gliders that was designed by Ernő Rubik (the father of Ernő Rubik, the inventor of the Rubik's Cube), and produced by Auto-Aero. After its introduction the R-26 Góbé became the de facto training glider type in Hungary and is still used by many clubs for basic instruction.
==Design and development==
One of a series of all-metal gliders designed by Rubik from 1957 onwards, the R-26 Góbé was intended to provide two-seat instruction, with the rear seat raised for a view forward.〔〔 Series production started in 1962 and the first production aircraft flew in August 1963.〔 Almost 200 were produced.〔〔
The Góbé is of predominately aluminium monocoque construction. The wings have a metal D-box ahead of a single main spar, covered in corrugated metal (this design eliminated the necessity of extra ribs and rivets, thus significantly decreasing production costs and reducing total weight). Aft of the spar they are covered in doped fabric. The wing has a modified a Goettingen 549 airfoil; the Schempp-Hirth air brakes extend from the top and bottom surfaces of the wings and are made of perforated plates for better performance. The slatted Frise ailerons are covered by doped fabric. The landing gear consists of a fixed monowheel and a tail skid. The V-tail of the first prototype was judged unsuitable for training and was replaced on the second prototype and production aircraft by a conventional unit.〔 All the leading edges on the empennage are made of corrugated metal; the control surfaces are covered by doped fabric. The rudder is notably large and effective,〔〔 the trim tab is mounted on the right side of the elevator. The control forces are transferred to all of the control surfaces by pushrods, except for the trim tab, which uses bowden cables to attach to the control handle. The instructor seat is not equipped with instruments; the rear seat is raised in order to give the instructor a view on the instruments mounted in front of the student. A separate rear seat instrument kit was available as optional equipment, making the glider capable for instrument (IFR) training.
The R-26S was designed to be easy to disassemble for ground transportation via trailer.〔 It was not certified and the one imported to the United States was registered with the Federal Aviation Administration in the ''Experimental - Exhibition'' category.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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