The Focke-Wulf Ta 400 was a large six-engined
heavy bomber
Heavy bombers are bomber aircraft capable of delivering the largest payload of air-to-ground weaponry (usually bombs) and longest range (takeoff to landing) of their era. Archetypal heavy bombers have therefore usually been among the larges ...
design developed in
Nazi Germany
Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was ...
in 1943 by
Focke-Wulf
Focke-Wulf Flugzeugbau AG () was a German manufacturer of civil and military aircraft before and during World War II. Many of the company's successful fighter aircraft designs were slight modifications of the Focke-Wulf Fw 190. It is one of the ...
as a serious contender for the
Amerikabomber
The ''Amerikabomber'' () project was an initiative of the German Ministry of Aviation (''Reichsluftfahrtministerium'') to obtain a long-range strategic bomber for the ''Luftwaffe'' that would be capable of striking the United States (specifical ...
project. One of the first aircraft to be developed from components from multiple countries, it was also one of the most advanced
Focke-Wulf
Focke-Wulf Flugzeugbau AG () was a German manufacturer of civil and military aircraft before and during World War II. Many of the company's successful fighter aircraft designs were slight modifications of the Focke-Wulf Fw 190. It is one of the ...
designs of World War II, though it never progressed beyond a wind tunnel model.
Designed as a bomber and long-range
reconnaissance
In military operations, reconnaissance or scouting is the exploration of an area by military forces to obtain information about enemy forces, terrain, and other activities.
Examples of reconnaissance include patrolling by troops (skirmisher ...
plane by
Kurt Tank
Kurt Waldemar Tank (24 February 1898 – 5 June 1983) was a German aeronautical engineer and test pilot who led the design department at Focke-Wulf from 1931 to 1945. He was responsible for the creation of several important Luftwaffe aircraft of ...
, the Ta 400 had a shoulder-mounted wing with 4°
dihedral. One of the most striking features were the six
BMW 801
The BMW 801 was a powerful German air-cooled 14-cylinder-radial aircraft engine built by BMW and used in a number of German Luftwaffe aircraft of World War II. Production versions of the twin-row engine generated between 1,560 and 2,000 PS ( ...
D
radial engine
The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is ca ...
s, to which two
Jumo 004
The Junkers Jumo 004 was the world's first production turbojet engine in operational use, and the first successful axial compressor turbojet engine. Some 8,000 units were manufactured by Junkers in Germany late in World War II, powering the Mess ...
jet engine
A jet engine is a type of reaction engine discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion. While this broad definition can include rocket, Pump-jet, water jet, and hybrid propulsion, the term ...
s were later added.
Design and development
In response to the
RLM guidelines of 22 January 1942,
Kurt Tank
Kurt Waldemar Tank (24 February 1898 – 5 June 1983) was a German aeronautical engineer and test pilot who led the design department at Focke-Wulf from 1931 to 1945. He was responsible for the creation of several important Luftwaffe aircraft of ...
of the Focke-Wulf company designed the Ta 400 as a bomber and long-range reconnaissance aircraft, to be powered by six
BMW 801
The BMW 801 was a powerful German air-cooled 14-cylinder-radial aircraft engine built by BMW and used in a number of German Luftwaffe aircraft of World War II. Production versions of the twin-row engine generated between 1,560 and 2,000 PS ( ...
D
radial engine
The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is ca ...
s, to which two
Jumo 004
The Junkers Jumo 004 was the world's first production turbojet engine in operational use, and the first successful axial compressor turbojet engine. Some 8,000 units were manufactured by Junkers in Germany late in World War II, powering the Mess ...
jet engine
A jet engine is a type of reaction engine discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion. While this broad definition can include rocket, Pump-jet, water jet, and hybrid propulsion, the term ...
s were later added. Design work was begun in 1943, much of it being carried out by French technicians working for Focke-Wulf at the
Arsenal de l'Aéronautique
Arsenal de l'Aéronautique (commonly named Arsenal) was a national military aircraft manufacturer established by the French Government in 1936 at Villacoublay. In the years before World War II, it developed a range of technically advanced fighter ...
at Châtillon-sous-Bagneux near Paris, with contracts for design and construction of major components being awarded to German, French, and Italian companies in an attempt to speed the process and begin construction of prototypes as soon as possible.
The Ta 400 had a shoulder-mounted wing with 4°
dihedral, with a long straight center section extending to the middle engine on each wing, and highly tapered outer wing panels. It had twin
vertical stabilizer
A vertical stabilizer or tail fin is the static part of the vertical tail of an aircraft. The term is commonly applied to the assembly of both this fixed surface and one or more movable rudders hinged to it. Their role is to provide control, sta ...
s mounted at the tips of the
tailplane
A tailplane, also known as a horizontal stabiliser, is a small lifting surface located on the tail (empennage) behind the main lifting surfaces of a fixed-wing aircraft as well as other non-fixed-wing aircraft such as helicopters and gyroplane ...
. Like the American
Boeing B-29 Superfortress
The Boeing B-29 Superfortress is an American four-engined propeller-driven heavy bomber, designed by Boeing and flown primarily by the United States during World War II and the Korean War. Named in allusion to its predecessor, the B-17 Fl ...
, the Ta 400 was to have a pressurized crew compartment and tail turret, connected by pressurized tunnel, as well as multiple
remote-controlled
In electronics, a remote control (also known as a remote or clicker) is an electronic device used to operate another device from a distance, usually wirelessly. In consumer electronics, a remote control can be used to operate devices such as ...
turrets. The crew of nine was to be protected by a heavy defensive armament, including ten 20 mm
MG 151 cannon
The MG 151 (MG 151/15) was a German 15 mm aircraft-mounted autocannon produced by Waffenfabrik Mauser during World War II. Its 20mm variant, the 20 mm MG 151/20 cannon, was widely used on German Luftwaffe fighters, night fighters, figh ...
s; and the same ''Hecklafette'' quadmount tail-turret with four
MG 131 machine gun
The MG 131 (shortened from German: ''Maschinengewehr'' 131, or "Machine gun 131") was a German 13 mm caliber machine gun developed in 1938 by Rheinmetall-Borsig and produced from 1940 to 1945. The MG 131 was designed for use at fixed, flexible ...
s, as the later model
Heinkel He 177
The Heinkel He 177 ''Greif'' (Griffin) was a long-range heavy bomber flown by the ''Luftwaffe'' during World War II. The introduction of the He 177 to combat operations was significantly delayed, by both problems with the development of its ...
A-series aircraft and
He 177B bombers would have used. Fuel supply was to have distributed across 32
fuel tanks
A fuel tank (also called a petrol tank or gas tank) is a safe container for flammable fluids. Though any storage tank for fuel may be so called, the term is typically applied to part of an engine system in which the fuel is stored and propelled ...
. Another design feature was
tricycle landing gear
Tricycle gear is a type of aircraft undercarriage, or ''landing gear'', arranged in a tricycle fashion. The tricycle arrangement has a single nose wheel in the front, and two or more main wheels slightly aft of the center of gravity. Tricycle g ...
.
The maximum bomb load was to have been . With a
gross weight
In science and engineering, the weight of an object is the force acting on the object due to gravity.
Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar qua ...
of , the Ta 400 with DB 603 engines was estimated to have a range of in the reconnaissance role, cruising at . The two bomber versions would have and gross weights with estimated ranges of and respectively. The projected Jumo-powered aircraft would have had a maximum range of for long range reconnaissance and as a bomber.
As with the
Heinkel He 277
The Heinkel He 277 was a four-engine, long-range heavy bomber design, originating as a derivative of the He 177, intended for production and use by the German Luftwaffe during World War II. The main difference was in its engines. The He 177 used ...
competitor for the ''
Amerikabomber
The ''Amerikabomber'' () project was an initiative of the German Ministry of Aviation (''Reichsluftfahrtministerium'') to obtain a long-range strategic bomber for the ''Luftwaffe'' that would be capable of striking the United States (specifical ...
'' contract, no prototype of the Ta 400 was ever built. It never progressed beyond a wind tunnel model, and performance, range and dimensions here are based solely on the designers' estimates. The master aircraft designer Ernst Heinkel himself remarked in October 1943, while both designs were still being worked on, that he thought that only the Ta 400 could be a worthy competitor to his firm's He 277, for the Amerika Bomber competition.
The Ta 400 was essentially a backup design for the
Messerschmitt Me 264
The Messerschmitt Me 264 was a long-range strategic bomber developed during World War II for the German ''Luftwaffe'' as its main strategic bomber. The design was later selected as Messerschmitt's competitor in the ''Reichsluftfahrtministerium' ...
. As the design required more materials and labor than the Me 264, the RLM became convinced that further development of the Ta 400 was a waste, and on 15 October 1943 notified Focke-Wulf that the program would be terminated, but the minutes of a meeting in Italy between Tank and Italian aviation industrialists on 18 April 1944 – just two days before the entire He 277 program was also cancelled – confirmed that work on the design was still ongoing and proposed the cooperation of Italian industry in the project.
[Uziel 2012, p. 48]
Specifications (Ta 400, estimated)
See also
References
Notes
Bibliography
* Griehl, Manfred. ''Luftwaffe over America''. London: Greenhill Books, 2006. .
* Herwig, Dieter and Heinz Rode. ''Luftwaffe Secret Projects: Strategic Bombers 1935-45''. Earl Shilton, UK: Midland Publishing, 2000. .
*
Uziel, Daniel. ''Arming the Luftwaffe: the German aviation industry in World War II ''. McFarland, US, 2012. .
External links
Complete specifications and three way blue prints.German WW II Focke-Wulf Ta 400 design manual
{{RLM aircraft designations
1940s German bomber aircraft
Abandoned military aircraft projects of Germany
Ta 400
World War II heavy bombers of Germany
Aircraft with auxiliary jet engines
Six-engined tractor aircraft
High-wing aircraft