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Focke-Wulf Ta 183
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Focke-Wulf Ta 183
The Focke-Wulf Ta 183 Huckebein was a design for a jet-powered fighter aircraft intended as the successor to the Messerschmitt Me 262 and other day fighters in Luftwaffe service during World War II. It had been developed only to the extent of wind tunnel models when the war ended, but the basic design was further developed postwar in Argentina as the FMA IAe 33 Pulqui II. The name Huckebein is a reference to a trouble-making raven (Hans Huckebein der Unglücksrabe) from an illustrated story in 1867 by Wilhelm Busch.
In early 1944, the Reich Air Ministry (RLM, for Reichsluftfahrtministerium) became aware of Allied jet developments, and were particularly concerned that they might have to face the Gloster Meteor over the continent. In response, they instituted the Emergency Fighter Program which took effect on July 3, 1944, ending production of most bomber and multi-role aircraft in favour of fighters, especially jet fighters. Additionally, they accelerated the development of experimental designs that would guarantee a performance edge over the Allied designs, designs that would replace the first German jet fighters, the Messerschmitt Me 262 Schwalbe and Heinkel He 162 Spatz.
The result was a series of advanced designs, some using swept wings for improved transonic performance, others instead using the tailless design to lower drag to the same end. Since German aircraft engineers were aware that tailless designs might encounter serious stability problems at transonic speeds, much as the prototype Me 163B V18 did on July 6, 1944, in hitting a record 1,130 km/h (702 mph) top speed and nearly destroying its entire rudder surface in the process, a variety of stabilization methods such as airbrakes on the wings were considered for such aircraft or simply adding conventional tail surfaces. Kurt Tank's design team led by Hans Multhopp designed in 1945 a fighter known as "Huckebein" (from Wilhelm Busch's "Hans Huckebein, the unlucky raven", a cartoon raven that traditionally makes trouble for others), also known as Project V (Project VI in some references) or Design II at Focke-Wulf. The raven character itself was re-used for the modern Bundeswehr's Lufttransportgeschwader 62 as the inspiration for their unit's insignia.
Development of the Ta 183 started as early as 1942 as Project VI, when the engineer Hans Multhopp assembled a team to design a new fighter, based on his understanding that previous Focke-Wulf design studies for jet fighters had no chance of reaching fruition because none had the potential for transonic speeds. This aircraft, bearing the RLM airframe number 8-183, was intended to use, as with a growing number of other advanced German late-war jet aircraft proposals, the advanced Heinkel HeS 011 turbojet; although the first prototypes were to be powered by the Junkers Jumo 004B. Early studies also included an optional 1,000 kgf (10 kN) thrust rocket engine for takeoff and combat boost, much as the special "003R" version of the BMW 003 jet engine was meant to use, with fuel and oxidiser for up to 200 seconds of burn time stored in drop tanks under the wings.
The wings were swept back at 40° and were mounted in the mid-fuselage position. The wings appear to be mounted very far forward compared with most designs, a side-effect of attempting to keep the centre of pressure (CoP) of the wing as a whole as close to the middle of the fuselage as possible. Reflecting the dilemma of a shortage of strategic materials, the first option of using aluminum in the construction of the main spar consisting of two tapered I-beams attached together on the top and bottom with shear webs of thin steel sheeting, led to a reappraisal. Multhopp chose to use wood instead of metal throughout the wing structure, with wood structure ribs attached to the front and back of the I-beams to give the wing its overall shape, and then covered with plywood. The box-like structure contained six fuel cells, giving the aircraft a total fuel load of 1,565 L (413 US gal).
The original design used a T-tail, with a notably long vertical stabilizer and a seemingly undersized horizontal stabilizer. The vertical stabilizer was swept back at 60°, and the horizontal stabilizer was swept back and slightly dihedralled. The horizontal stabilizer also featured two large trim tabs, the main pitching force actually being provided by what would have appeared to be "ailerons" on most other turbojet-powered fighter airframes of the period. The Ta 183 wing's outermost trailing-edge control surfaces on its wing panels, were well behind the center of gravity, placing their trailing edges' tips virtually even, horizontally, with the intended HeS 011 jet engine's exhaust orifice, and thus could provide both pitch and roll control through functioning as elevon control surfaces, as those on the wing panels of Messerschmitt's Me 163 tailplane-less Komet rocket fighter already did. Many problems beset the project, including the chance of a Dutch roll. Work therefore concentrated on the much less problematic Focke-Wulf Project VII. However, when the RLM eventually rejected that design, Huckebein was again brought to the fore.
The Ta 183 had a short fuselage with the air intake passing under the cockpit and proceeding to the rear where the single engine was located. The pilot sat in a pressurized cockpit with a bubble canopy which provided excellent vision. The primary armament of the aircraft consisted of four 30 mm (1.18 in) MK 108 cannons arranged around the air intake.
It was also possible to carry a bomb load of 500 kg (1,100 lb), consisting of one SD or more SC 500 half-tonne bombs, one Bombentorpedo BT 200 bomb, five SD-series fragmentation bombs, SC-series general-purpose bombs, or a Rb 20/30 reconnaissance camera. The weapons load would be carried in the equipment space in the bottom of the fuselage and thus partially protrude about halfway from the fuselage, possibly allowing for other armament packages such as the Ruhrstahl X-4 wire-guided missile.
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Focke-Wulf Ta 183
The Focke-Wulf Ta 183 Huckebein was a design for a jet-powered fighter aircraft intended as the successor to the Messerschmitt Me 262 and other day fighters in Luftwaffe service during World War II. It had been developed only to the extent of wind tunnel models when the war ended, but the basic design was further developed postwar in Argentina as the FMA IAe 33 Pulqui II. The name Huckebein is a reference to a trouble-making raven (Hans Huckebein der Unglücksrabe) from an illustrated story in 1867 by Wilhelm Busch.
In early 1944, the Reich Air Ministry (RLM, for Reichsluftfahrtministerium) became aware of Allied jet developments, and were particularly concerned that they might have to face the Gloster Meteor over the continent. In response, they instituted the Emergency Fighter Program which took effect on July 3, 1944, ending production of most bomber and multi-role aircraft in favour of fighters, especially jet fighters. Additionally, they accelerated the development of experimental designs that would guarantee a performance edge over the Allied designs, designs that would replace the first German jet fighters, the Messerschmitt Me 262 Schwalbe and Heinkel He 162 Spatz.
The result was a series of advanced designs, some using swept wings for improved transonic performance, others instead using the tailless design to lower drag to the same end. Since German aircraft engineers were aware that tailless designs might encounter serious stability problems at transonic speeds, much as the prototype Me 163B V18 did on July 6, 1944, in hitting a record 1,130 km/h (702 mph) top speed and nearly destroying its entire rudder surface in the process, a variety of stabilization methods such as airbrakes on the wings were considered for such aircraft or simply adding conventional tail surfaces. Kurt Tank's design team led by Hans Multhopp designed in 1945 a fighter known as "Huckebein" (from Wilhelm Busch's "Hans Huckebein, the unlucky raven", a cartoon raven that traditionally makes trouble for others), also known as Project V (Project VI in some references) or Design II at Focke-Wulf. The raven character itself was re-used for the modern Bundeswehr's Lufttransportgeschwader 62 as the inspiration for their unit's insignia.
Development of the Ta 183 started as early as 1942 as Project VI, when the engineer Hans Multhopp assembled a team to design a new fighter, based on his understanding that previous Focke-Wulf design studies for jet fighters had no chance of reaching fruition because none had the potential for transonic speeds. This aircraft, bearing the RLM airframe number 8-183, was intended to use, as with a growing number of other advanced German late-war jet aircraft proposals, the advanced Heinkel HeS 011 turbojet; although the first prototypes were to be powered by the Junkers Jumo 004B. Early studies also included an optional 1,000 kgf (10 kN) thrust rocket engine for takeoff and combat boost, much as the special "003R" version of the BMW 003 jet engine was meant to use, with fuel and oxidiser for up to 200 seconds of burn time stored in drop tanks under the wings.
The wings were swept back at 40° and were mounted in the mid-fuselage position. The wings appear to be mounted very far forward compared with most designs, a side-effect of attempting to keep the centre of pressure (CoP) of the wing as a whole as close to the middle of the fuselage as possible. Reflecting the dilemma of a shortage of strategic materials, the first option of using aluminum in the construction of the main spar consisting of two tapered I-beams attached together on the top and bottom with shear webs of thin steel sheeting, led to a reappraisal. Multhopp chose to use wood instead of metal throughout the wing structure, with wood structure ribs attached to the front and back of the I-beams to give the wing its overall shape, and then covered with plywood. The box-like structure contained six fuel cells, giving the aircraft a total fuel load of 1,565 L (413 US gal).
The original design used a T-tail, with a notably long vertical stabilizer and a seemingly undersized horizontal stabilizer. The vertical stabilizer was swept back at 60°, and the horizontal stabilizer was swept back and slightly dihedralled. The horizontal stabilizer also featured two large trim tabs, the main pitching force actually being provided by what would have appeared to be "ailerons" on most other turbojet-powered fighter airframes of the period. The Ta 183 wing's outermost trailing-edge control surfaces on its wing panels, were well behind the center of gravity, placing their trailing edges' tips virtually even, horizontally, with the intended HeS 011 jet engine's exhaust orifice, and thus could provide both pitch and roll control through functioning as elevon control surfaces, as those on the wing panels of Messerschmitt's Me 163 tailplane-less Komet rocket fighter already did. Many problems beset the project, including the chance of a Dutch roll. Work therefore concentrated on the much less problematic Focke-Wulf Project VII. However, when the RLM eventually rejected that design, Huckebein was again brought to the fore.
The Ta 183 had a short fuselage with the air intake passing under the cockpit and proceeding to the rear where the single engine was located. The pilot sat in a pressurized cockpit with a bubble canopy which provided excellent vision. The primary armament of the aircraft consisted of four 30 mm (1.18 in) MK 108 cannons arranged around the air intake.
It was also possible to carry a bomb load of 500 kg (1,100 lb), consisting of one SD or more SC 500 half-tonne bombs, one Bombentorpedo BT 200 bomb, five SD-series fragmentation bombs, SC-series general-purpose bombs, or a Rb 20/30 reconnaissance camera. The weapons load would be carried in the equipment space in the bottom of the fuselage and thus partially protrude about halfway from the fuselage, possibly allowing for other armament packages such as the Ruhrstahl X-4 wire-guided missile.