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The Coffman engine starter (also known as a "shotgun starter") was a starting system used on many piston engines in aircraft and armored vehicles of the 1930s and 1940s. It used a cordite cartridge to move a piston, which cranked the engine.
Hand starting of aircraft piston engines by swinging the propeller is the oldest and simplest method, the absence of any onboard starting system giving an appreciable weight saving. Positioning of the propeller relative to the crankshaft is arranged such that the engine pistons pass through top dead centre during the swinging stroke.
The fuel system as explained above is one of the two systems required for starting the engine. The other is the actual ignition of the air/fuel mixture in the chamber. Usually, an auxiliary power unit is used to start the engines. It has a starter motor which has a high torque transmitted to the compressor unit. When the optimum speed is ...
The first German jet engines built during the Second World War used a mechanical APU starting system designed by the German engineer Norbert Riedel.It consisted of a 10 horsepower (7.5 kW) two-stroke flat engine, which for the Junkers Jumo 004 design was hidden in the engine nose cone, essentially functioning as a pioneering example of an auxiliary power unit for starting a jet engine.
Data from Instruction and Maintenance Manual MZ 202 General characteristics Type: Twin-cylinder, two-stroke aircraft engine Bore: 76 mm (2.99 in) Stroke: 69 mm (2.72 in) Displacement: 626 cc (38.20 cu in) Length: 313.5 mm (12.34 in) Width: 299.4 mm (11.79 in) Height: 331.1 mm (13.04 in) Dry weight: 38 kg (84 lb) with starter motor, two carburettors, fuel pump, cooling system and exhaust system ...
Dual ignition provides two advantages: redundancy in the event of in-flight failure of one ignition system; and more efficient burning of the fuel-air mixture within the combustion chamber. [ 1 ] [ 2 ] In aircraft and gasoline-powered fire fighting equipment, redundancy is the prime consideration, but in other vehicles the main targets are ...
A full authority digital engine (or electronics) control (FADEC) is a system consisting of a digital computer, called an "electronic engine controller" (EEC) or "engine control unit" (ECU), and its related accessories that control all aspects of aircraft engine performance.
In December 2010 the CEA-308, powered by the Jabiru 2200, set four FAI records for aircraft weighing less than 300 kg. It averaged 359 km/h; 194 kn (223 mph) for four runs over the 3-km low-altitude course [ 6 ] and 327 km/h; 176 kn (203 mph) on a 100-km circuit.