Heinkel He 111
name = He 111
manufacturer =Heinkel Flugzeugwerke
designer = Siegfried and Walter Günter
first flight =
introduced = 1936
retired = 1945
primary user =
produced = 1935 – 1944
number built = 7,300 estimated
unit cost =
variants with their own articles =
HeinkelHe 111 was a German medium bomberdesigned by Siegfried and Walter Günter in the early 1930s in violation of the Treaty of Versailles. The Heinkel became the most numerous and primary Luftwaffebomber during the early stages of World War II.It is perhaps the most famous symbol of the German bomber force ("Kampfwaffe") due its distinctive "Greenhouse" nose.
The He 111 took on the mantle of "workhorse", and was used in a variety of roles on every front in the European Theatre throughout the war. It was used as a
strategic bomberduring the Battle of Britain, a torpedo bomberduring the Battle of the Atlantic, a medium bomberand a transport aircrafton the Western Front, Eastern Front and Mediterranean and North African Fronts. It became obsolete, but the failure to design and produce a successor meant the He 111 continued to be produced until 1944, when piston-engined bomber production was largely halted, in favour of fighter aircraft. The design of the Heinkel endured after the war in the CASA 2.111. Its airframe was produced in Spainunder license by Construcciones Aeronáuticas SA. The design differed significantly in powerplant only. The Heinkel's descendant continued in service until 1973, when it was retired.
In the early 1930s,
Ernst Heinkeldecided to build the world's fastest passenger plane, a lofty goal met by more than a little skepticism by the German aircraft industry and its newly evolving political leadership. Heinkel entrusted the development to the Günter brothers, fairly new to the company and untested.
The aircraft was superior to the already fast Lockheed 9 Orion that their design was competing against. The first example of their soon-to-be-famous
Heinkel He 70"Blitz" (“Lightning”) rolled off the line in 1932 and immediately started breaking records. In its normal four-passenger version, its speed almost reach 200 mph(320 km/h), even though it was powered by only a single 600 hp (447 kW) BMW V1engine. The elliptical wing, which the Günther brothers had already used in the Bäumer Sausewindsports plane before they joined Heinkel, became a feature in many subsequent designs the brothers developed. The design immediately garnered the interest of the Luftwaffe, which was looking for medium bombers for military service.
The future Heinkel He 111 was a more powerful twin-engine version of the "Blitz", producing an aircraft that had many of the "Blitz"'s features, including its elliptical inverted
gull wing, small rounded control surfaces, and BMW engines. With location of the engines the only notable change in appearance, the new He 111 design was often called the "Doppel-Blitz" (“Double Lightning”).
He 111 A - D
The first prototype, He 111 V1 (W.Nr. 713, D-ADAP), first flew from
Rostock-Marienehe on 24 February 1935. [ Dressel & Griehl 1994, p. 32.] It was followed by the civilian-equipped V2 and V4 in May 1935. The V2 (W.Nr. 715, D-ALIX) used the bomb bay as a four-seat "smoking compartment", with another six seats behind it in the rear fuselage. V2 entered service with Lufthansain 1936, along with five newly-built versions known as the He 111 C.
The design was only masquerading as an airliner. The aircraft was intended to be a bomber as the Luftwaffe began rearmament.
The initial reports from the test pilot, Gerhard Nitschke, were favourable. It flight performance and handling were impressive although it dropped its wing in the stall. As a result the passenger variants had their wings reduced from 25 to 23
metres. The military aircraft, the V1, V3 and V5 spanned just 22.6 metres [ Dressel & Griehl 1994, p. 32.] .
The first prototypes were underpowered, as they were equipped with 578 hp BMW VI 6.0 six-cylinder in-line engines. This was eventually increased to 999 hp with the fitting of the DB (
Daimler-Benz) 600 engines into the V5, which became the prototype of the "B" series.
Only ten He 111 A-0 models based on the V3 were built, but they proved to be underpowered and were eventually sold to
China. The type had been lengthened by 1.2 metres due to the added 7.92 mm MG 15 machine gunin the nose. Another gun position was installed on top of the fuselage, and another in a ventral position, which could retract. The bomb compartment was divided into two compartments and could carry 1,500 lbs of bombs. The problem with these additions was that the weight of the aircraft reached 8,200Kg. The He 111's performance was seriously reduced; in particular, the BMW VI 6.0 Z engines were not now powerful enough. The increased length also altered the 111's aerodynamic strengths and reduced its excellent handling on takeoffs and landings. [Janowicz 2004, p. 15.] The crews found the aircraft difficult to fly, and its top speed was reduced significantly. Production was shut down after the pilots reports reached the "RLM". However, a Chinese delegation was visiting Germany and they considered the He 111 A-0 fit for their needs and purchased seven machines. [Janowicz 2004, p. 16.]
The first He 111B made its maiden flight in the autumn of 1936. After improvements, the "
Reichsluftfahrtministerium" (RLM—Air Ministry) ordered 300 He 111B-1s; the first were delivered in January 1937. The B-2 variant had its engines upgraded to the supercharged 850 hp DB 600C, or in some cases, the 925 hp 600G. The B-2 began to roll off the production lines at the Heinkel works in Oranienburgin 1937. [Dressel & Griehl 1994, p. 32-33.] In late 1937, the D-1 series entered production. However, the DB600Ga engine with 1,074 hp planned for this variant was instead allocated to the Bf 109and Bf 110production lines. Heinkel then opted to use Jumo engines, and the He 111 V6 was tested with Jumo 210 G engines, but was vastly underpowered. However, the improved 999 hp Jumo 211 A-1 powerplant prompted the cancellation of the D series altogether and concentration on the design of the E series. [Dressel & Griehl 1994, p. 34.]
He 111 E
The E-1s came off the production line in February 1938, in time for a number of these aircraft to serve in the
Condor Legionduring the Spanish Civil Warin March 1938. In a way, the positive performance influenced later variants. The Luftwaffe believed that because the E variant could outrun enemy fighters, there was no need to upgrade the defensive weaponry, which would prove a mistake from the Battle of Britainonward. The fuselage bomb bay used four bomb racks, in later versions eight modular standard bomb racks designed to carry one SC 250, 250 kg bomb or four SC50, 50 kg bombs each in nose up orientation (which resulted in the bombs doing a flip as they were dropped out of the aircraft). These modular standard bomb racks were a common feature on the first generation of Luftwaffe bombers (including the Junkers Ju 52), but it turned out that they limited the ordnance selection to bombs of only two sizes. Since they had to be built strongly enough to carry heavy bombs without contributing to the structural integrity of the aircraft, these racks were abandoned in later designs. The E-3 series was produced with only a few modifications, such as external bomb racks. The E-4 variant was fitted with external bomb racks also and the empty bombay space was filled with a 835 litre tank for aviation fuel and a further 115 litre oil tank. This increased the loaded weight to nearly 11 tons, but increased its range to 1,800 km (1,125 miles). The modifications allowed the He 111 to perform both long and short range missions. [Janowicz 2004, p. 23.]
He 111 F
The He 111 design quickly ran though a series of minor design versions to fix one sort of problem or another. One of the more obvious changes started with the He 111 F models, which moved from the elliptical wing to one with straight leading and trailing edges, which could be manufactured more efficiently. The thirty machines of the F-1 series, fitted with DB 600 engines, were exported to
Turkey. The Turkish interest, prompted by the fact the tests of the next prototype, He 111 V8, was some way off, prompted the "RLM" t order 40 F-4s with Jumo 211 A-3 engines. These machines were built and entered service in early 1938. This fleet was used as a transport group during the Demyansk Pocketand Battle of Stalingrad. [Janowicz 2004, p. 25.] At this time, development began on the He 111 J. It was powered by the DB 600 and was intended as a torpedo bomber. As a result, it lacked an internal bomb bay and carried two external torpedo racks. The RLM gave an order for the bomb bay to be retrofitted; this variant became known as the J-1. In all but the powerplant, it was identical to the F-4. [Dressel & Griehl 1994, p. 34.]
He 111 J
The He 111's low-level performance attracted the interest of the "
Kriegsmarine". The navy believed the He 111 would make an excellent torpedo bomber, and as a result, the He 111 J was produced. The J was capable of carrying torpedoes and mines. The "Kriegsmarine" eventually dropped the program as they deemed the four man crew too expensive in terms of manpower. The "RLM" however, had progressed too far with the development, and continued to build the He 111 J-0. Some 90 were built in 1938 and were then sent to " Küstenfliegergruppe 806". [Janowicz 2004, p. 27.]
He 111 P
The He 111 P incorporated the updated
Daimler-Benz DB 601and featured a newly designed nose section, including an asymmetric Ikaria nose mounting for an MG 15 machine gun that replaced the 'stepped' cockpit with a roomier and aerodynamically favourable glazed "dome" over the front of the aircraft. These improvements allowed the aircraft to reach 475 km/h at 5000 m and a cruise speed of 370 km/h, although a full bombload reduced this figure to 300 km/h. [Dressel & Griehl 1994, p. 34.] The design was implemented in 1937 because pilot reports indicated problems with visibility. After World War II, however, British Royal Navytest pilot Eric "Winkle" Brown, who had flown a number of captured later model He 111s, described the view through the redesigned nose as comparable to "looking down a glass tunnel."Fact|date=June 2008 The pilot's seat could actually be elevated, with the pilot's eyes above the level of the upper glazing, complete with a small pivoted windscreen panel, to get the pilot's head above the level of the top of the "glass tunnel" for a better forward view for take-offs and landings. Eric Brown remarked that this was sort of a "Tiger Moth" transformation (referring to the famous British training biplane's open cockpits and windscreens) to such an advanced bomber's pilot accommodation.
The new design was powered by the DB 601 Ba engine with 1,175 PS and reduced the length of the aircraft by 1.1 metres. It was designated as P-0, and the first production lines reached their units in the autumn of 1938.In May 1939 the P-1 and P-2 went into service with improved radio equipment. The P-2, like the later P-4 was given stronger armour and two MG 15 machine guns on either side of the fuselage and two external bomb racks. [Dressel and Griehl 1994, p. 34.]
Many of the He 111 Ps served during the Polish Campaign. With the
Junkers Ju 88experiencing technical difficulties, the He 111 and the Dornier Do 17formed the backbone of the "Kampfwaffe". On 1 September 1939, Luftwaffe records indicate the Heinkel strength at 705 (along with 533 Dorniers). [Nowarra 1990, p. 37.]
The P-6 variant was the last production model of the He 111 P series. In 1940, the RLM abandoned further production of the P series in favour of the H versions, mostly because the P-series' Daimler-Benz engines were sorely needed for Messerschmitt Bf 109 and Bf 110 fighter production.The remaining P-6s were redesignated P-6/R2s and used as heavy glider tugs. [Dressel and Griehl 1994, p. 35.]
The H variant
The H variant of the He 111 series was more widely produced and saw more action during the Second World War than any other Heinkel variant.
Owing to the uncertainty surrounding the delivery and availability of the DB 601 engines, Heinkel began tests with the 1,100 hp (820 kW)
Junkers Jumo 211powerplants. The somewhat larger size and greater weight of the Jumo 211 engines were unimportant considerations for a twin engine design, and the Jumo was used on almost all early-war bomber designs. When the Jumo was fitted to the P model it became the He 111 H.
The P-series was gradually replaced on the eve of war with the new the H-2, powered by Jumo 211 A-3 engines. A count on
2 September 1939revealed that the Luftwaffe had a total of 787 He 111s in service, with 705 combat ready, including 400 H-1 and H-2s that had been produced in a mere four months. [Dressel & Griehl 1994, p. 36.] Production of the H-3, powered by the 1,200 hp Jumo 211 D-1, began in November 1939. After the Battle of Britain, smaller scale production of the H-4s began. This variant differed from the H-3 in that could either carry 2.000 kg of bombs internally or mount one or two external racks to carry one 1.800 kg or two 1.000 kg bombs. As these external racks blocked the internal bomb bay doors, a combination of internal and external storage was not possible. The H-5 series followed in February 1941, with heavier defensive armament. Some H-3 and H-4s were equipped with barrage ballooncable cutting equipment in the shape of cutter installations forward of the engines and cockpit. They were designated H-8, but later named H8/R2. These aircraft were difficult to fly and the production stopped.The H-6 initiated some all around improvements in design. The Jumo 211 F-1 engine of 1,350 hp increased its speed while the defensive armament was upgraded with one MG FF in the nose position, one MG 15 in the ventral turret and in each of the fuselage side windows (optional). Some H-6 variants carried tail-mounted MG 17 defensive armament. [Dressel & Griehl 1994, p. 37.] With the H-11, the Luftwaffe had at its disposal a powerful medium bomber with heavier armour and defensive armament.
One of the most interesting variants was a
glidertug, the He 111 Z, standing for "Zwilling" or twin. It was built from two 111 H-6s joined together with a connecting wing and a fifth engine and used to tow the giant Messerschmitt Me 321or two Gotha Go 242gliders. Ten He 111 Zs were built, and all served until destroyed.
At 14,000 kg take-off weight (carrying 2,000 kg of bombs internally), the He 111H achieved a top speed of 405 km/h at 6 km, improving to 435 km/h without the bomb load and at 50% fuel load. Still, this was considerably slower than the newer
Junkers Ju 88which entered service in 1940, so the He 111 was gradually withdrawn from the bomber role. The He 111 became a jack-of-all-trades as the war progressed, carrying out missions not even imagined when the war started.
Nevertheless, the He 111 had to be kept in production until 1944 because the RLM failed to provide a successor: the He 177 "Greif" heavy bomber was plagued by engine problems, and the
Bomber Bprogram was eventually abandoned. The vast majority of the 7,300 He 111s produced would be the H models, largely identical to the first H introduced in 1939.
List H variants
*He 111 A-0: 10 aircraft built based on He 111 V3, two used for trials at Rechlin, rejected by Luftwaffe all 10 were sold to China.
*He 111 B-0: Pre-production aircraft, similar to He 111 A-0, but with DB600Aa engines.
*He 111 B-1: Production aircraft as B-0, but with DB600C engines, and defensive armament of three 7.92 mm MG 15.
*He 111 B-2: As B-1, but with DB600G engines, and extra radiators on either side of the engine nacelles under the wings.
*He 111 C-0: Six pre-production aircraft build.
*He 111 D-0: Pre-production aircraft with DB600Ga engines.
*He 111 D-1: Production aircraft, only a few built.
*He 111 E-0: Pre-production aircraft, similar to B-0, but with Jumo 211A-1 engines.
*He 111 E-1: Production aircraft up to 2,000 kg bomb load.
*He 111 E-3: Production bomber.
*He 111 E-4: Half of 2,000 kg bomb load carried externally.
*He 111 E-5: Fitted with several internal auxiliary fuel tanks.
*He 111 F-0: Pre-production aircraft similar to E-5, but with a new wing of simpler construction with a straight rather than curved taper, and Jumo 211A-3 engines.
*He 111 F-1: Production bomber, small number build for export to Turkey.
*He 111 F-4: Production bomber for use with Luftwaffe.
*He 111 G-0: Pre-production transportation aircraft built, featured new wing introduced on F-0.
*He 111 G-3: Also known as V14, fitted with BMW 132Dc radial engines.
*He 111 G-4: Also known as V16, fitted with DB600G engines.
*He 111 G-5: Four aircraft with DB600Ga engines built for export to Turkey.
*He 111 J-0: Pre-production torpedo bomber similar to F-4, but with DB600CG engines.
*He 111 J-1: Production torpedo bomber, 90 built, but re-configured as a bomber.
*He 111 L: Alternative designation for the He 111G-3 civil transport aircraft.
*He 111 P-0: Pre-production aircraft featured new straight wing, new glazed nose, Db601Aa engines, and a ventral gondola for gunner (rather than ‘dust-bin’ on pervious models.)
*He 111 P-1: Production aircraft, fitted with three 7.92 mm MG 15 for defensive armament.
] : Had FuG 10 radio in place of FuG III.
*He 111 P-3: Dual control trainer.
*He 111 P-4: Fitted with extra armour, three extra MG 15’s, and provisions for two externally mounted bomber racks.
*He 111 P-6: Fitted with DB 601N engines.
*He 111 P-6/R2: Conversions later in war of surviving aircraft to glider tugs.
*He 111 H-0: Pre-production aircraft similar to P-2 but with Jumo 211 engines.
*He 111 H-1: Production aircraft.
*He 111 H-2: This version was fittwed with improved armament.
*He 111 H-3: Similar to P-4, but with Jumo 211A-3 engines.
*He 111 H-4: Fitted with Jumo 211D engines, late in production changed to Jumo 211F engines, and two external bomb racks.
*He 111 H-5: Similar to H-4, all bombs carried externally, internal bomb bay replaced by fuel tank
*He 111 H-6: Torpedo bomber, could carry two LT F5b torpedoes externally, powered by Jumo 211F-1 engines, had six MG 15’s and one MG/FF 20 mm cannon in forward gondola.
*He 111 H-8: Similar to H-3 or H-5 aircraft, but with balloon-cable cutting fender.
*He 111 H-8/R2: Conversion of H-8 into glider tugs, balloon-cutting equipment removed.
*He 111 H-10: Similar to H-6, but with 20 mm MG/FF in ventral gondola, and fitted with Kuto-Nase balloon-cable-cutters.
*He 111 H-11: Had a fully enclosed dorsal gun position and increased defensive armament and armour.
*He 111 H-11/R1: As H-11, but with two MG 81Z twin-gun units at beam positions.
*He 111 H-11/R2: As H-11, but converted to a glider tug.
*He 111 H-12: Modified for carry
Hs 293A missiles, fitted with FuG 203b Kehl transmitter, and ventral gondola deleted.
*He 111 H-14: Pathfinder, fitted with FuG Samos and FuG 351 Korfu radio equipment.
*He 111 H-14/R1:Glider tug version.
*He 111 H-15: Torpedo bomber.
*He 111 H-16: Fitted with Jumo 211F-2 engines and increased defensive armament of 13 mm MG 131’s, twin 7.92 mm MG 81Z’s, and a 20 mm MG/FF cannon.
*He 111 H-16/R1: As H-16, but with 13 mm MG131 in power operated dorsal turret.
*He 111 H-16/R2: As H-16, but converted to a glider tug.
*He 111 H-16/R3: As H-16, modified as a pathfinder.
*He 111 H-18: Based on H-16/R3, was a pathfinder for night operations.
*He 111 H-20: Defensive armament similar to H-16, but some aircraft feature power operated dorsal turrets.
*He 111 H-20/R1: Could carry 16 paratroopers, fitted with jump hatch.
*He 111 H-20/R2: Was a cargo carrier and glider tug.
*He 111 H-20/R3: Was a night bomber.
*He 111 H-20/R4: Could carry 20 50 kg bombs.
*He 111 H-21: based on the H-20/R3, but with Jumo 213E-1 engines.
*He 111 H-22: Re-designated and modified H-6, H-16, and H-21’s used to air launch V-1 flying-bombs.
*He 111 H-23: Based on H-20/R1, but with Jumo 213A-1 engines.
*He 111 R: High altitude bomber project.
*He 111 Z-1: Two He 111 airframes coupled together by a fifth engine, used a glider tug for Me 321.
*He 111 Z-2: Long-range bomber project based on Z-1.
*He 111 Z-3: Long-range reconnaissance project based on Z-1.
CASA 2.111: The Spanish company CASA also produced a number of heavily modified He 111s under license for indigenous use. These models were designed CASA 2.111 and served until 1965.
*China as ROC
*flag|Turkey|1937 (He111F variant) [Griehl 1994, p. 34.]
*flag|Romania|1948 (1 converted bomber)
Only three original German built He 111's survivors are on display or stored in museums around the world (not including major sections) [ [http://www.preservedaxisaircraft.com/Luftwaffe/heinkel/he111.htm List of He 111 survivors] ] .Of the three complete German built Heinkels, one E-3 series (Wk Nr 2940) with the 'conventional' cockpit is on display at Museo del Aire, Madrid,
Spain, having served in the Condor Legion. The Second, a mostly complete He 111P-2 (Wk Nr 1526), is on display at the Norwegian Air Force Museum at Gardermoen. [ [http://www.preservedaxisaircraft.com/Luftwaffe/heinkel/he111.htm List of He 111 survivors] ] The third, a H-20, Wk Nr 701152, is on display at the RAF MuseumHendon, London.
In 2005 another He 111 was salvaged from a Norwegian lake and has since been moved to Germany for restoration, and may be the most complete wartime He 111 to date. [ [http://www.preservedaxisaircraft.com/Luftwaffe/heinkel/he111.htm List of He 111 survivors] ] Unrelated to this effort are efforts by several organizations to restore one to flyable condition.
Approximately 14 Spanish licensed built
CASA 2.111s survive today in various conditions on display or storage. One modified Spanish 2.111D served as a transport for Spanish VIPs, including General Francisco Franco, before being purchased in Englandby the Commemorative Air Forcein 1977. It remained the last He 111 in flyable condition until July 10, 2003, when it was destroyed in a fatal crash landing. The aircraft was attempting a landing at the Cheyenne Municipal Airport, near Cheyenne, Wyoming, while en route from Midland, Texasto an air show in Missoula, Montana. Eyewitness reports indicate the aircraft lost power to one engine on final approach and ploughed through a chain link fence before colliding with a school bus washing building under construction. Killed were CAF pilot Neil R. Stamp and co-pilot Charles S. Bates. [http://www.commemorativeairforce.org/news/2003/nr-03-0710.html Commemorative Air Force]
pecifications (He 111 H-6)
ref=Jane’s Fighting Aircraft of World War II [Bridgeman 1946, p. 167.]
plane or copter?=plane
jet or prop?=prop
crew=5 (pilot, navigator/bombardier,
nose gunner, ventral gunner, dorsal gunner)
length main=16.4 m
length alt=54 ft 6 in
span main=22.5 m
span alt=74 ft 3 in
height main=3.9 m
height alt=13 ft 9 in
area main=86.5 m²
area alt=942 ft²
empty weight main=7,720 kg
empty weight alt=17,000 lb
loaded weight main=12,030 kg
loaded weight alt=26,500 lb
max takeoff weight main=14,075 kg
max takeoff weight alt=31,000 lb
type of prop=liquid-cooled inverted V-12
number of props=2
power main=986 kW
power alt=1,300 hp
max speed main=400 km/h
max speed alt=250 mph
range main=2,800 km with max fuel
range alt=1,750 mi
ceiling main=8,390 m
ceiling alt=27,500 ft
climb rate main=20 minutes to 5,185 m
climb rate alt=17,000 ft
loading main=137 kg/m²
loading alt=28.1 lb/ft²
power/mass main=.082 kW/kg
power/mass alt=.049 hp/lb
** up to seven 7.92 mm
MG 15or MG 81machine guns, some of them replaced or augmented by
*** 1× 20 mm
MG FFcannon (central nose mount or forward ventral position)
*** 1× 13 mm
MG 131machine gun (mounted dorsal and/or ventral rear positions)
** up to 2,000 kg (4,409 lb) carried internally (eight 250 kg max), "or:"
** up to 2,500 kg (5,512 lb) on two external racks
List of military aircraft of Germany
* Bridgeman, Leonard. "The Heinkel He 111 H." Jane’s Fighting Aircraft of World War II. London: Studio, 1946. ISBN 1 85170 493 0.
* Joachim Dressel and Manfred Griehl. "Bombers of the Luftwaffe". DAG Publications. 1994. ISBN 1-85409-140-9
* Janowicz, Krzysztof. "Heinkel He 111: Volume 1". Kagero. 2004. ISBN 978-8-38908-826-0
* Nowarra, Heinz J; Atglen. "The Flying Pencil". Pennsylvania: Schiffer Publishing. 1990. ISBN 0-88740-236-4.
* Smith, J. Richard and Kay, Anthony L. "German Aircraft of the Second World War". Annapolis, MD: US Naval Institute Press, 2002. ISBN 1-55750-010-X.
* "Heinkel He 111". Network Projects Production. 1993.
* [http://www.preservedaxisaircraft.com/Luftwaffe/heinkel/he111.htm List of He 111 survivors]
* [http://www.flysamlingen.museum.no/index.php/om_flysamlingen/utstillinger Museum with He 111P in Norway]
* [http://ju88.net/ Museum volunteers site, click on: OTHER - OTHER PROJECTS - 111P]
* [http://www.preservedaxisaircraft.com/Luftwaffe/heinkel/he111.htm List of He 111 survivors]
* [http://ktsorens.tihlde.org/flyvrak/buvikvoll.html An article on a He 111 wreck site in Norway]
* [http://www.battleofbritain.net/0017.html BattleOfBritain.Net He 111]
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