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237:. These new designs feature liquid cooling with forced-air rotor cooling, metered, direct oil lubrication pumped to the main bearings and to the rotor tips, via the inlet manifold, with partial oil recovery, dual ignition and electric starting, all of which were features of the MidWest engines. They also use electronic fuel injection.
160:
by a belt-driven centrifugal pump and then dumped overboard as it was considered too hot for ideal volumetric efficiency. Instead, ambient-temperature combustion air was inducted into the engine separately. Early
Midwest engines had simple Tillotson carburettors, but these proved unsatisfactory and later engines were fitted with
159:
oil was directly injected into the inlet tracts and onto the main roller bearings, but the oil that fed the bearings became an oil-mist within the rotor-cooling air, with about 30% of the oil recovered and returned to the remote oil tank. Unlike the Norton engine, the rotor-cooling air was forced in
193:
sector. The AE engine's characteristics made it suited for aviation use, being lightweight, very compact, low vibration and simple in construction. Also, whereas Wankel engines in car and motorcycle applications often suffered insufficient engine warm up time prior to power application, in an
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aircraft use, engine checks and taxiing ensured that it would be at operating temperature by the time the runway was reached. However, two factors lead to the MidWest engine's lack of market success downfall. The engine was originally intended to be the main powerplant for the
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engine) gave a maximum propeller speed of an efficient 2,500 rpm. Unlike the
Hewland's gearbox, where the output shaft and propeller flange were below the crankshaft, the MidWest's gearbox had its output shaft higher than the eccentric shaft. When installed in the
266:
Twin rotor, 588 cc (36 cu in), (max) 110 hp (82 kW) at 7800 rpm, (cruise) 99 hp (74 kW) at 6900 rpm, gearbox ratio 2.95:1, 53 kg dry weight including all attached ancillaries, but excluding the
259:
Twin rotor, 588 cc (36 cu in), (max) 100 hp (75 kW) at 7800 rpm, (cruise) 92 hp (69 kW) at 6900 rpm, gearbox ratio 2.95:1, 53 kg dry weight including all attached ancillaries, but excluding the
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aircraft, this feature allowed a larger diameter propeller to be used, with better propeller clearance, while raising the height of the engine's thrust line, and reducing downward visibility over the nose very slightly.
249:
Single rotor, 294 cc (18 cu in), (max) 50 hp (37 kW) at 7800 rpm, (cruise) 45 hp (34 kW) at 6900 rpm, gearbox ratio 3.23:1, 33 kg
202:
as a replacement. Instead of initially making their engines available only for non-certified aircraft, MidWest embarked on the expensive and time-consuming process of seeking a
115:. Wankel engines produce large amounts of heat, so Garside gave this air-cooled motor interior cooling air that was drawn first through the rotors and into a large
600:
336:
225:. Diamond discontinued production of the MidWest twin-rotor engine, but for a period they continued building the single-rotor model, mainly for the
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The engine produces maximum power at 7,500 rpm (the rotors turning at only 2,500rpm), but a 2.96:1 reduction gearbox (closely based on that in the
749:
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Single rotor, 294 cc (18 cu in), (max) 55 hp (41 kW) at 7750 rpm, 27.8 kg (61 lb) (not including gearbox)
286:
Single rotor, 404 cc (25 cu in), (max) 75 hp (56 kW) at 7000 rpm, 36 kg (79 lb) (not including gearbox)
229:
market. Diamond then designed and produced two replacement models, both single-rotor Wankel engines: the 55 hp (41 kW)
545:
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Very closely based upon the Norton engine, the MidWest engine developed the design further. The lubrication system became a
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198:, but the kitplane's designer, Ivan Shaw, lost patience with the crude Tillotson carburettors, and opted for the
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had liquid-cooling, but with the same air-cooled rotors as the
Classic model. These Norton engines had a
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before entering the combustion chambers via the carburetors. Only 100 of the air-cooled
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MidWest planned to market the AE-series engine in the fast-growing light aircraft and
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and the engine ceased production after only a limited number had been built.
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718:"A Flight Test Evaluation of the ASH-26E Self Launching 18-Meter Sailplane"
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The Wankel Rotary Engine: A History By John B. Hege page 137,
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including all attached ancillaries, but excluding the exhaust
601:"Aircraft registration | UK Civil Aviation Authority"
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bought MidWest and transferred the engine rights to
107:twin-rotor motorcycle engine that was based on the
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76:. They were produced by Mid-West Engines Ltd. at
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702:
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590:MidWest Engines Ltd AE1100R Rotary Engine Manual
424:100/130 or automotive gasoline 91 minimum octane
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168:as the risk of induction icing was diminished.
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92:This engine design traces its origins to the
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221:, a company founded in 2007 and located in
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679:"Product Program – Rotary Engines AE50R"
455:100 hp (75 kW) at 7,800 shaft
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715:
625:
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745:Official Austro Engines Rotary website
550:
709:
636:Austro Engine gmbh brochure Nov2 009
581:"Cycle World" magazine February 1971
400:53 kg (117 lb) (AE100/110)
210:Diamond Aircraft purchase of Midwest
716:Johnson, Richard (September 1995).
13:
14:
781:
738:
706:"Flyer" magazine May 1994 page 38
613:Midwest AE110 operator's Handbook
233:and the 75 hp (56 kW)
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103:, a BSA engineer, designed an
1:
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131:, similar to an oil-injected
99:research unit in Birmingham.
94:Birmingham Small Arms Company
474:1.43 kW/kg (0.87 hp/lb)
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7:
478:
240:
215:Diamond Aircraft Industries
10:
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465:0.5 lb/bhp/hr at 70% power
391:410 mm (16.1 in)
385:480 mm (18.9 in)
379:720 mm (28.3 in)
87:
622:Pilot magazine April 1994
123:were produced. The later
64:, single- and twin-rotor
18:
765:Pistonless rotary engine
522:List of aircraft engines
430:total-loss oil injection
129:total-loss oiling system
111:motor later used in the
770:Aircraft Wankel engines
350:General characteristics
557:Denniss, Tony (1990).
343:Specifications (AE100)
272:Austro engine variants
153:semi-total-loss system
148:
50:Mid West Engines Ltd.
750:EASA Type Certificate
470:Power-to-weight ratio
147:ARV Super2 with AE110
146:
559:"The Norton Rotary"
235:Austro Engine AE75R
231:Austro Engine AE50R
113:Hercules motorcycle
109:Fichtel & Sachs
484:Comparable engines
155:whereby Silkolene
149:
546:978-0-7864-2905-9
463:Fuel consumption:
332:Schleicher ASH 31
327:Schleicher ASH 30
322:Schleicher ASW 22
317:Schleicher ASH 25
312:Schleicher ASH 26
297:AMF Chevvron 2-32
133:two-stroke engine
78:Staverton Airport
60:are lightweight,
58:MidWest AE series
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651:"Rotary Engines"
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337:Schleicher AS 35
204:type certificate
166:carburettor heat
125:Norton Commander
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223:Wiener Neustadt
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121:Norton Classics
97:Umberslade Hall
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82:Gloucestershire
72:, designed for
42:United Kingdom
38:National origin
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739:External links
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677:(April 2008).
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117:plenum chamber
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66:Wankel engines
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516:Related lists
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411:Fuel system:
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365:Displacement
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291:Applications
227:motor glider
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173:Hewland AE75
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57:
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490:Jabiru 2200
447:Performance
428:Oil system:
373:(35.88 in³)
139:Development
31:aero engine
759:Categories
528:References
500:Rotax 912S
441:air-cooled
419:Fuel type:
405:Components
396:Dry weight
302:ARV Super2
251:dry weight
178:ARV Super2
105:air-cooled
19:AE series
726:27 August
687:16 August
656:16 August
564:14 August
505:Rotax 914
495:Rotax 912
200:Rotax 912
196:Europa XS
185:Marketing
649:(2007).
479:See also
241:Variants
191:kitplane
157:2-stroke
459:(AE100)
389:Height:
377:Length:
267:exhaust
260:exhaust
88:History
68:, with
544:
439:&
383:Width:
84:, UK.
28:Wankel
721:(PDF)
682:(PDF)
422:Avgas
356:Type:
283:AE75R
277:AE50R
263:AE110
256:AE100
24:Type
728:2011
689:2011
658:2011
566:2011
542:ISBN
369:588
246:AE50
56:The
457:RPM
371:cm³
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697:^
666:^
627:^
574:^
80:,
730:.
691:.
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135:.
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