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The Arsenal Air 100 is a French single seat competition sailplane produced in the 1940s. It sold in small numbers but set several records, still holding the world absolute solo glider endurance record of 56 h 15 m. ==Design and development== The successful German Jacobs Weihe sailplane of 1938 strongly influenced several wartime and postwar designs such as the Italian CVV-6 Canguro and the British Slingsby Gull 4 and Sky.〔 The Arsenal 100 was also Weihe based, with the intention of improving on that design. Work began before the war within a small design group named the Groupe de l'Air,〔 led by Raymond Jarlaud.〔 The wings of the two aircraft are similar in design and construction. Both have spans of 18.0 m (59 ft 1 in) and are straight tapered with rounded wing tips, although the Air's taper ratio (wing root chord to tip chord) is higher, resulting a slightly greater aspect ratio. Some later Air 100s have squared-off tips terminated in streamlined "salmons". Both wings use the Göttingen 549 airfoil inboard of the tips, though the Air's roots have a thickened version. They are wooden single spar structures, plywood covered ahead of the spar and fabric covered behind.〔 The Air 100 has slotted ailerons to improve roll rates and, inboard, has Schempp-Hirth parallel-rule airbrakes mounted immediately aft of the main spar;〔 the Weihe's DFS style brakes had never been very effective, largely because their design placed them further aft on the wing where space did not allow them to open fully.〔 The tail units of the two types are also similar, with ply covered fixed surfaces and fabric covered control surfaces. The Air 100 has a broader chord fin and there are detailed differences in shape, but both place a broad, curved rudder on a hinge roughly in line with the elevator trailing edge. There are significant differences in the fuselages, though both are rounded, ply covered structures.〔 The Weihe has a relatively slender rear fuselage, achieved by placing the wing high on a pylon behind the cockpit.〔 In order to improve the aerodynamics of the wing-fuselage junction the Air's designers deepened the fuselage and mounted the wing at shoulder height. The prototype had no dihedral but this is used on production aircraft. The cockpit canopy is higher, more curved and with fewer frames on the post-war design. Originally the Air 100 landed on a skid and tail bumper but on production aircraft there is a fixed monowheel under mid-chord, with the rear part of the skid removed.〔 The Air 100 flew for the first time on 10 June 1947.〔 The production aircraft that followed the two prototypes were 43 kg (95 ) heavier empty.〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Arsenal Air 100」の詳細全文を読む スポンサード リンク
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