Caproni Bergamaschi PL.3
| Caproni Bergamaschi PL.3 ： ウィキペディア英語版|
The Caproni Bergamaschi PL.3 was designed and built in Italy to compete in the 1934 London to Melbourne air race. It was a single engine cantilever monoplane with clean lines, retractable undercarriage and side-by-side seating for two.〔 Though it was registered as a race entrant, late delays prevented it from competing.
==Design and development==
The PL.3 had a low wing built entirely of wood and plywood covered, tapering uniformly both in chord and thickness from wide, deep roots to rounded tips. The tail was conventional, the tailplane set at mid-fuselage with straight swept leading edges and carrying elevators with trim tabs. The fin was triangular, with a rounded rudder ending above the fuselage.〔
In contrast the fuselage of the PL.3 was mostly of metal construction. From propeller to aft of the wing root the fuselage was a tube of constant diameter, set by the wide chord NACA cowling around its 525 kW (700 hp) licence built Pratt & Whitney Hornet radial engine, which then tapered to the tail. The underlying structure from nose to tail was a rectangular chrome molybdenum steel frame, aluminium covered in front and plywood behind. The low profile cockpit placed the crew at the wing trailing edge. The PL.3 had a conventional undercarriage with mainwheels retracting rearwards into the wing, leaving a small part exposed.〔
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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