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The Rotax 447 is a development of the Rotax 377, increasing the power output from 26 kW (35 hp) to 29.5 kW (40 hp) by increasing the cylinder bore from 62 mm to 67.5 mm and the maximum rpm from 6500 to 6800. [2]
The large disk closer to the top is connected to the engine, the smaller one drives the wheels via chains (missing here). A friction drive [1] [2] or friction engine is a type of transmission that utilises the static friction of two smooth surfaces (instead of contact pressure of meshing teeth) to transfer torque between two rotating parts.
Data from Cuyuna & McCornack General characteristics Type: Direct drive two-stroke piston aircraft engine Bore: 2.658 in (68 mm) Stroke: 2.362 in (60 mm) Displacement: 428 cc (26.11 cubic inches) Dry weight: 65 lb (29 kg) Designer: McCornack/Cuyuna Components Fuel type: Regular auto fuel Oil system: 40:1 premixed fuel and oil Cooling system: fan forced air Performance Power output: 30 hp (22 ...
The Freebird I is an American single-seat, high wing, tricycle gear, single engined pusher configuration ultralight kit aircraft designed for construction by amateur builders by the Freebird Airplane Company of Marshville, North Carolina and later also produced by Pro Sport Aviation of Wingate, North Carolina.
The new model was powered by the Cuyuna 430D direct drive engine and was introduced in 1980 at a price of USD$3900. [9] Ascender The Cuyuna 430D powerplant was greatly improved by the addition of a 2:1 belt reduction drive, allowing larger propellers of 54 inches diameter to be used. This produced more thrust and less noise.
The Hirth F-30 is a horizontally opposed four-cylinder, two-stroke, carburetted aircraft engine, with optional fuel injection, designed for use on ultralight aircraft and homebuilts. It is manufactured by Hirth of Germany. [1] [2] [3] [4]
Data from ROTAX 277 UL Data Sheet General characteristics Type: two-stroke air-cooled aeroengine Bore: 72 mm (2.83 in) Stroke: 66 mm (2.60 in) Displacement: 268.7 cc (16.40 cu in) Dry weight: 29.5 kg (65 lb) (complete including reduction drive and exhaust system) Components Valvetrain: piston ports Fuel system: pneumatic pump pressurized Fuel type: premium unleaded autofuel Oil system ...
The resulting aircraft was a scaled-down version of the very successful Sorrell Hiperbipe aerobatic cabin biplane and with an empty weight of 247 lb (112 kg) fit the US ultralight category. The series designation of "SNS" stands for Sorrell Negative Stagger .