The Austro Engine AE50R is an

Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...

aircraft engine An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Aircraft using power components are referred to as powered flight. Most aircraft engines are either piston engines or gas turbin ...

, produced by

Austro Engine Austro Engine is an Austrian manufacturer of aircraft engines based at Wiener Neustadt in Lower Austria. History The production site and headquarters was built in 2007 with an investment of EUR 13 Million. The company was founded by Diamond Ai ...

Wiener Neustadt Wiener Neustadt (; Lower_Austria.html" ;"title=".e. Lower Austria">.e. Lower Austria , ) is a city located south of Vienna, in the state of Lower Austria, in northeast Austria. It is a self-governed city and the seat of the district administr ...

for use in

motorglider A motor glider is a fixed-wing aircraft that can be flown with or without engine power. The FAI Gliding Commission Sporting Code definition is: a fixed-wing Aircraft#Heavier-than-air – aerodynes, aerodyne equipped with a means of propulsion (M ...

s and

UAV An unmanned aerial vehicle (UAV) or unmanned aircraft system (UAS), commonly known as a drone, is an aircraft with no human pilot, crew, or passengers onboard, but rather is controlled remotely or is autonomous.De Gruyter Handbook of Drone ...

s.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', pages 238-239. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X

Design and development

The AE50R is based on the

MidWest AE50 The MidWest AE series are lightweight, liquid-cooled, single- and twin-rotor Wankel engines, with dual ignition, designed for light aircraft. They were produced by Mid-West Engines Ltd. at Staverton Airport, Gloucestershire, UK. History This eng ...

Diamond Aircraft Industries Diamond Aircraft Industries is a manufacturer of general aviation aircraft and motor gliders, based in Wiener Neustadt, Lower Austria, Austria. It has been a subsidiary of the Chinese company Wanfeng Aviation since 2017. It is the third lar ...

purchased the design from Mid-West Engines Limited on 10 March 2003 and took over as the

type certificate A type certificate signifies the airworthiness of a particular category of aircraft, according to its manufacturing design (''type design''). Certification confirms that the aircraft of a new type intended for serial production is in compliance w ...

holder. Diamond formed its subsidiary, Austro Engine, to produce the engine. The engine is a single rotor

four-stroke A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either directio ...

, air and liquid-cooled, gasoline

Wankel engine The Wankel engine (, ) is a type of internal combustion engine using an eccentric (mechanism), eccentric Pistonless rotary engine, rotary design to convert pressure into rotating motion. The concept was proven by German engineer Felix Wankel, f ...

design, with a mechanical gearbox

reduction drive A reduction drive is a mechanical device to shift rotational speed. A planetary reduction drive is a small scale version using ball bearings in an epicyclic arrangement instead of toothed gears. Reduction drives are used in engines of all kinds ...

employing a helical gear set with a reduction ratio of 3.225:1. Cooling is predominantly liquid, with forced air cooling for the rotor core. A starter and generator are standard equipment. It employs dual

capacitor discharge ignition Capacitor discharge ignition (CDI) or thyristor ignition is a type of automotive electronic ignition system which is widely used in outboard motors, motorcycles, lawn mowers, chainsaws, small engines, gas turbine-powered aircraft, and some cars ...

with variable ignition timing and produces at 7750 rpm. The engine was originally type certified by Mid-West on 18 Dec 1992 to ''JAR-22 H, Change 4, dated 13 September 1982, incl. Orange Paper 22/90/1''. It was transferred to an EASA Type Certificate under

EASA The European Union Aviation Safety Agency (EASA) is an agency of the European Commission with responsibility for civil aviation safety in the European Union. It carries out certification, regulation and standardisation and also performs inve ...

Part 22 Subpart H on 4 April 2011.

Variants

;AE50R :Base version, equipped with a conventional dual ignition system and a carburettor, certified 18 December 1992 ;AE50RA :Version equipped with a conventional dual ignition system and a carburettor, with differing engine attachment point geometry, certified 26 September 2001 ;AE50RAB :Version equipped with a conventional dual ignition system and a carburettor, with differing engine attachment point geometry, certified 26 September 2001 ;IAE50R-AA :Version equipped with electronic dual ignition system and fuel injection system, with differing engine attachment point geometry, with a narrower width of , certified 26 September 2001

Applications

Schiebel Camcopter S-100 The Schiebel Camcopter S-100 is an Austrian unmanned aerial vehicle (UAV) using a rotorcraft design. Design and development Produced by the Austrian company Schiebel, it was developed from 2003 to 2005. With a maximum take-off weight (MTOW) of ...

Schleicher ASG 32 The ASG 32 is a Two Seater Class glider manufactured by Alexander Schleicher. The prototype had its maiden flight in Poppenhausen on 31 May 2014. Deliveries began in 2015. Design and development The ASG 32 is a two-seat mid-wing sailplane ...

Schleicher ASH 30 The ASH 30 is a two-seater Glider competition classes#Open Class, Open Class glider (sailplane), glider manufactured by Alexander Schleicher GmbH & Co, Alexander Schleicher, developed as a replacement for the Schleicher ASH 25, ASH 25. The Mi ve ...

Schleicher ASH 31 The ASH 31 is a single seat Open Class glider which can also be flown in the 18 metre class configuration. Design and development The ASH 31 was announced at the end of 2008 by Alexander Schleicher. The glider was developed as a replacement ...

Specifications (AE50R)

References

External links