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IMAM Ro.43
The IMAM Ro.43 was an Italian reconnaissance single float seaplane, serving in the Regia Marina between 1935 and 1943. Although produced in quantity, it proved never to be suitable for its intended role as a spotter plane for warships, and although 105 remained in service when Italy entered World War II, they were already obsolete.
==Design and development==
The Ro.43 was designed to meet a 1933 requirement by the ''Regia Marina'' (the Italian navy) for a catapult-launched reconnaissance aircraft to equip the Maritime Reconnaissance Squadrons operating from its ships. The specification called for a speed of 240 km/h (149 mph), with a range of 600 km (370 mi) or an endurance of 5.5 hours. Other contenders were the Piaggio P.18 and P.20, CMASA MF.10, CANT Z.504 and Macchi C.76.
Derived from the Ro.37 ''Lince'' reconnaissance aircraft,〔Angelucci 1981, p.323〕 by the same designer, the Ro.43 first flew in 1934. The plane was built of steel tubes and wood covered by soft alloy and fabric.〔(Meridionali RO.43 )〕 It was a two-seat biplane with folding gull upper and inverse gull lower wings, lightly armed and capable of around 300 km/h (185 mph) and over 1,000 km (620 mi) range. This performance more than met the requirements of the specification, and so it was declared the winner.
Despite this, the Ro.43 had serious problems. Its lightweight structure meant that it was too delicate for buoyancy at sea, and it had poor sea-handling qualities. These problems meant that when it was launched it was quite normal not to recover it at sea, forcing the aircraft to return to land before alighting.
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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