The Austro Engine EA50R is an

Austria Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...

aircraft engine An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years ma ...

, 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 Airc ...

Wiener Neustadt Wiener Neustadt (; ; Central Bavarian: ''Weana Neistod'') 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 administration of Wiener Neustadt-Land D ...

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 aerodyne equipped with a means of propulsion (MoP), capable of sustained soaring fligh ...

s and

UAV An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controller ...

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 Chinese-owned manufacturer of general aviation aircraft and motor gliders, based in Austria. It is the third largest manufacturer of aircraft for the general aviation sector, and has manufacturing facilities ...

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''). It confirms that the aircraft of a new type intended for serial production, is in compliance with applic ...

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 direct ...

, air and liquid-cooled, gasoline

Wankel engine The Wankel engine (, ) is a type of internal combustion engine using an eccentric rotary design to convert pressure into rotating motion. It was invented by German engineer Felix Wankel, and designed by German engineer Hanns-Dieter Paschke. ...

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, turbine-powered aircraft, and some cars. It ...

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 Union (EU) with responsibility for civil aviation safety. It carries out certification, regulation and standardisation and also performs investigation and monitorin ...

Part 22 Subpart H on 4 April 2011.

Variants

;AE50R :Base version, 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) o ...

* Schleicher ASG 32 * Schleicher ASH 30 *

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 f ...

Specifications (AE50R)

References

External links