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Topic: Junkers Jumo 205

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	Reference.com/Encyclopedia/Junkers Jumo 205
		The Junkers Jumo 205 aircraft engine was the most famous of a series of diesel engines that were the first, and for more than half a century, the only successful diesel aircraft engines.
		The Jumo 205 powered the early versions of the Junkers Ju 86 bomber, but was found too unresponsive for combat and liable to failure when used at maximum power as is common for combat aircraft.
		The Jumo 203 and 204 were licensed to Napier & Son, who built a small number as the Napier Culverin just prior to the war.
	www.reference.com /browse/wiki/Junkers_Jumo_205 (776 words)

	Junkers Engines - Fo4 / Jumo 4 / Jumo 204
		Jumo 205A, 205B and 205C designators were used for Jumo 5A, 5B and 5C and offered only a few technical improvements.
		The use of the Jumo 205 in military aircraft, like the Ju86 failed, as these aircraft were used at their power limits, which result in a lot of engine failures.
		As Dornier had gained good experiences about the Jumo 205 in their aircraft, a proposal was made to equip a few boats with a maritime version of the Jumo 205.
	www.geocities.com /hjunkers/ju_jumo205_a1.htm (1286 words)

	Diesel Engine
		Both the Jumo and Deltic engines used one piston per cylinder to expose an intake port, and the other to expose an exhaust port.
		In the Jumo 205 and its variants, the upper crankshaft serves the exhaust pistons, and the lower crankshaft the intake pistons.
		Junkers Jumo 223 and the Deltic, each big end bearing serves one inlet and one exhaust piston, using a forked connecting rod for the exhaust piston.
	www.ssbn608.org /diesel.htm (482 words)

	Junkers Engines - Fo4 / Jumo 4 / Jumo 204
		The first flight with a Junkers Diesel Oil engine was performed on 30th August 1929 with a Junkers F24 (c/n 832) enroute from Dessau to Cologne.
		As problems were rising during the type certification of the Jumo 4, which also reduced the maximum power, available from this engine, further trials and improvements were made on the engine after certification.
		Compared to the Jumo 4, the pistons of the Jumo 204 got crowns of heat resistent steel It offered more power on same turn rates and was higher pressured.
	www.geocities.com /hjunkers/ju_jumo204_a1.htm (601 words)

	Reference.com/Encyclopedia/Junkers Jumo 223
		The Junkers Jumo 223 was an experimental 24-cylinder aircraft engine based on the Junkers Jumo 205.
		It is rumoured to have been taken to Moscow after the war, where development may have continued.
		The Jumo 223 was in some ways the predecessor of the successful three-crankshaft Napier Deltic engine.
	www.reference.com /browse/wiki/Junkers_Jumo_223 (137 words)

	Junkers Ju 86B by Juilan Herrero (Italeri 1/72)
		Zindel discarded previous Junkers contraction techniques as the typical oblong fuselage section and corrugated surfaces, and designed a sleek plane with an oval section and smooth surfaces.
		Junkers noticed that export customers were not much in favour of the “peculiar” Jumo 205 C diesel engines.
		In 1937 a Z-1 (Jumo engines) was delivered to Southern Airlines and Freighters from Australia, being returned to Junkers in short time.
	hsfeatures.com /ju86bjh_1.htm (2587 words)

	Aircraft Engines of World War II (Site not responding. Last check: 2007-10-13)
		Jumo 004, Junkers The Jumo 004 jet engine was used by the Me 262 jet fighter.
		Jumo 022, Junkers Planned turboprop engine, a development of the Jumo 012 with contra-rotating screws.
		Jumo 205, Junkers The Jumo 205 a dvelopment of the line of Junkers diesel engines, the original product of the Junkers Motorenbau GmbH, founded in 1923.
	www.ww2guide.com /engines.shtml (4612 words)

	AirMuseum (Site not responding. Last check: 2007-10-13)
		Engine was developed at a base of JUMO 204 engine by Junkers factory under original designation JUMO 5 at the beginning of 30s of 20th century.
		Diesel engines JUMO 205 have low consumption of fuel and were very useful for long transatlantic flights.
		Basic technical specifications of the JUMO 205 (versions A, B, a C):
	airmuseum.webpark.sk /motor_jumo_205_e.html (99 words)

	German Bombers of World War II (Site not responding. Last check: 2007-10-13)
		Popularly known as Tante Ju ('Auntie Junkers') or 'Iron Annie', the Ju 52/3m trimotor was the most significant Luftwaffe transport of the war, serving on all fronts and in all major actions.
		In October of 1942 it was apparent that the advanced Ju 288 bomber and the Jumo 222 engine designed for it were not going to be available anytime soon so work began on an interim aircraft.
		Unfortunately continual delays in getting the Jumo 222 engines and numerous modifications and changing requirements kept this promising bomber in the development and testing until the entire program was cancelled in early 1944.
	www.ww2guide.com /germanb.shtml (4517 words)

	PANZERS WEEKLY Vol. 2, No. 4 ~ Nov. 19 - 25, 2000
		It would be fair to say that the Junkers Ju 86 was already obsolescent at the beginning of World War II, and was accepted rather grudgingly by the Luftwaffe, which preferred the Heinkel He 111.
		Meanwhile, modifications to the military models resulted in the Jumo 205C-engined Ju 86D-1, five of which served with the Legion Condor during the Spanish Civil War, but the diesel engines were not standing up well to combat conditions and the aircraft had proved markedly inferior to the He 111.
		Junkers had been experimenting for some time with a high-altitude version of the Jumo diesel engine, together with pressure cabin design, and in 9/39 submitted proposals for a high-altitude reconnaissance version of the Ju 86.
	p090.ezboard.com /fjpspanzersfrm39.showNextMessage?topicID=71.topic (6288 words)

	Junkers Jumo 205 - Wikipedia
		Der Junkers Jumo 205 ist ein von Junkers entwickelter und gebauter 6 Zylinder-Reihen-Diesel-Gegenkolbenmotor.
		Der Jumo 205 wurde in der frühen Version des Bombers Junkers Ju 86 sowie in den Flugbooten Dornier Do 18 und Blohm and Voss Ha 139 verwendet.
		Später wurde er zum Jumo 207 B Höhenmotor weiterentwickelt mit Abgasturbolader und Ladeluftkühler.
	de.wikipedia.org /wiki/Junkers_Jumo_205 (283 words)

	Dornier Do 18 - flying boat (Site not responding. Last check: 2007-10-13)
		It was available in two forms as the Do 18E and Do 18F, with an AUW of 10,000kg and 11,000kg and with larger wings.
		One Do 18 was redesignated Do 18L when its two 447kW Junkers Jumo 205 were replaced by 671kW BMW 132N.
		Do 18 were also operated as reconnaissance and search-and-rescue aircraft by the Luftwaffe, more than 70 being built for this purpose, plus a number of Do 18H trainers.
	avia.russian.ee /air/germany/dorn_do-18.html (102 words)

	Junkers Ju 86P (Site not responding. Last check: 2007-10-13)
		The Ju 86A bomber was powered by a pair of 510 hp Junkers Jumo 205C-4 liquid-cooled Diesel engines.
		The Jumo 205C Diesel proved to be particularly unsuitable as a powerplant for bomber aircraft --- it did not take kindly to sudden changes in r.p.m, and lost power rapidly at altitudes above 16,500 feet.
		The powerplant was the Jumo 207A-1 six-cylinder Diesel, which was a high-altitude version of the Jumo 205 equipped with a pair of centrifugal superchargers mounted in series.
	www.csd.uwo.ca /~pettypi/elevon/baugher_other/ju86.html (1184 words)

	Wikinfo \| Two-stroke cycle
		Other engines have used the same ported arrangement as the gasoline two-stroke, although the charge air is generally delivered under pressure from a blower through ducting rather than through the crankcase.
		Examples are the Junkers Jumo 205 and Napier Deltic high-speed opposed piston engines.
		A third pattern uses the induction method of the gasoline two-stroke, but with an exhaust valve in the cylinder head.
	www.wikinfo.org /wiki.php?title=Two-stroke_cycle (1372 words)

	zoche aero-diesels homepage
		In the 1930´s the Junkers "Jumo 205" supercharged 2-stroke Diesel was used in scheduled transatlantic service between Europe and South America; it had a cruise BSFC of.356 lb/hp hr and a specific weight of only 1.5 lb/hp.
		"Jumo" Diesel engines delivered full sealevel power up to 40,000 feet and powered aircraft flying at 50,000 feet.
		Following these almost forgotten examples we are developing a new piston engine for general aviation: the ZOCHE aero-diesel.
	www.zoche.de /index.html (685 words)

	Pulp: 1933 - Naval Adversaries
		Fitted with two Junkers Jumo 205D compression-ignition engines, the Do-18 type was used for experimental work on the North Atlantic crossing to the United States.
		Dornier Do-18: monoplane flying boat, two Junkers "Jumo 205" (560 HP each) V-12 diesels; 2 pilots + 10 passengers (civil) or 4 crew (recon); cruise 124 mph, max speed 155 mph, ceiling 14,000', range 2,800 to 5,200 miles depending on type; span 77', length 63', weight 11 tons.
		Military versions are fitted with a couple of 13mm MG151 machine guns in flexible mounts (one in the nose and one midships) and can carry two 50 kg bombs but no passengers.
	www.asmrb.org /michaelb/PulpNaval.html (2079 words)

	Internal combustion engine - Gurupedia
		Multiple-crankshaft configurations do not necessarily need a cylinder head at all, but can instead have a piston at each end of the cylinder, called an opposed piston design.
		This design was used in the Junkers Jumo 205 diesel aircraft engine, using two crankshafts, one at either end of a single bank of cylinders, and most remarkably in the
		Napier Deltic diesel engines, which used three crankshafts to serve three banks of double-ended cylinders arranged in an equilateral triangle with the crankshafts at the corners.
	www.gurupedia.com /i/in/internal_combustion_engine.htm (2036 words)

	Green Car Congress: FEV Developing Efficient Two-Stroke Diesel Engine
		The approach could support a family of engines applied either as standalone engines in vehicles, as power sources for APUs, or as powerful and efficient engines in a hybrid configuration.
		Junkers Jumo 205 C 4 Aero Engine - Two Stroke Compression Ignition (plus cutaway)
		Please take a look at www.pattakon.com/pre/index.html where it is presented a different approach of high speed Diesels of two and four strokes, even compact Junkers.
	www.greencarcongress.com /2005/05/fev_developing_.html (3401 words)

	PowerPedia:Diesel engine - PESWiki (Site not responding. Last check: 2007-10-13)
		With recent advancements, the pump pressure has been raised to 2,050 bar (205 MPa), allowing injection parameters similar to common rail systems.
		Theoretical diagram of the engine, the curves correspond to the period of admission and consumption of fuel, the fuel being injected under pressure greater than the pressure at the point of highest compression.
		A number of manufacturers built engines, the best known probably being the Junkers Jumo 205, which was moderately successful, but proved unsuitable for combat use in WWII.
	peswiki.com /index.php/PowerPedia:Diesel_engine (10873 words)

	Ocean Navigator Online - Trend toward turbos
		The Germans did field several diesel-powered aircraft beginning in the 1920s through the end of the war.
		The most well-known turbocharged version, a Junkers JUMO 205, enabled the reconnaissance aircraft it powered to operate at an unprecedented 50,000 feet.
		By the mid-1950s, many major diesel engine manufacturers began experimenting with, and ultimately offering, turbos for truck and other large power plants.
	www.oceannavigator.com /site/csrv/content.asp?id=50 (2598 words)

	0577
		In the 1930's the Junkers JUMO 205 was well used on transatlantic service to South America; it had a cruise BSFC of.356 lb/hp hr and a specific weight of 1.5 lb/hp (for max.
		JUMO Diesel powered aircraft had operating altitudes of up to 50,000 feet.
		So far there has been no development of this kind of highly efficient aero-engine (except for Napier Nomad which did not reach production stage).
	www.unicopter.com /0577.html (1131 words)

	Roden (Site not responding. Last check: 2007-10-13)
		I find it ironic that the Deltic found fame in the UK and the USN.
		After all, it was a development of the Junkers Jumo 205 series aero engine...
		Went through your excellent site and it brought back lots of memories for me. Not so puzzling as it sounds: I served in Lebanon and the kind of missions we had were not dissimilar to the ones carried out by you guys in Vietnam.
	www.ptfnasty.com /ReadersPages/roden.htm (337 words)

	foreign engines
		A piece approximately 3-3/4" x 1-1/4" has been cut from bottom of cover (does not affect text, as back of cover is blank.) Date stamp on front cover and small label applied to top of cover.
		Issued by Argus Motoren GMBH of Berlin, Germany.
		Entitled "Le Moteur D'Aviation Junkers - Jumo 211".
	www.icarusbooks.com /foreign.htm (1116 words)

	Blohm & Voss BV 138
		Three Junkers Jumo 205 D six-cylinder vertical opposed-piston compression-ignition two-stroke engines, each rated at 880hp for take-off.
		One 20-mm MG 151 cannon in bow turret, one 20-mm MG 151 cannon mounted in turret in hull tail, and one 13-mm MG 131 machine gun on open position aft of central engine, plus (optional) one 7.9-mm MG 15 machine gun firing through hatch in starboard side of hull.
		BV 138B-1 - 21 delivered from 12.40, Jumo 205 D engines, increased defensive armament
	www.feldgrau.com /bv138.htm (261 words)

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