Military Review

Focke-wulf triebflugel

9


In Nazi Germany, many different designs were developed for vertically taking off fighter-interceptors, most of which had a vertical fuselage position during take-off and landing. Perhaps the most unusual of these is the Focke-Wulf Triebflugel interceptor project, which was developed in 1944 by the famous aircraft designer K. Tank together with D. Klucheman and H. Haliman.

Triebflugel - translated from German as a wing-propeller, which most accurately reflects the design of the aircraft, which did not have a wing in the usual sense. For vertical take-off and landing on the tail, as well as for horizontal flight, the plane had to use a three-blade propeller wing with a diameter of 11,4 m, which was set in motion by the O. Pabst design installed at its ends with an 839 kgf thrust. It was assumed that the engine will run on non-deficient fuels. For the promotion of the wing should have been used one small rocket engine company "Walter".

Focke-wulf triebflugel


After a vertical take-off, the aircraft must go to a horizontal flight, which was to be made with a small tailing angle so that the propeller worked on the oblique-blowing mode and created, in addition to the horizontal one, the necessary lift (lateral force on the propeller).

Control of the aircraft should be carried out using aerodynamic rudders mounted on the cross tail. The pilot was to be located in the nose in a well-glazed cockpit. Armament - two guns MK-103 and two MG-151 with ammunition also located in front. The fuel tank was located in the central part of the fuselage.



The design characteristics of the aircraft: take-off weight 5175 kg; empty weight 3200 kg; maximum equivalent power at the ground 10200 el.s.s., maximum climb rate at the ground 125м / s, speed 1000km / h. As can be seen from these data, the project of the fighter was given a huge power supply, unattainable when using other engines - almost 2 hp / kg, which should provide not only a high rate of climb, but also a high speed of flight.



The vertical position of the fuselage during takeoff and landing required the development of a special chassis with one main and four auxiliary supports. The main landing gear located in the rear fuselage, and retractable - auxiliary support in the fairing at the ends of the cruciform tail. All supports were equipped with caster wheels.

Work on the aircraft design was limited not only by the stage of preliminary design and experimental research, but also by detailed design study. Because of its novelty and complexity, the project remained unfulfilled, but many of the solutions incorporated into it later found their application in other projects, both in Germany (FW-860, He-231), and in other countries.

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  1. Civil
    Civil 8 December 2012 10: 24
    +5
    yeah, really really gloomy Teutonic mind ...
    1. alex86
      alex86 8 December 2012 16: 49
      0
      They took it straight from the tongue ...
  2. Brother Sarych
    Brother Sarych 8 December 2012 12: 18
    0
    Somehow it’s too tricky everything was invented ...
  3. Thunderbolt
    Thunderbolt 8 December 2012 12: 20
    -1
    Ahead of the time: German developments during the war helped tame the atom, sent the first person into space, and many bold ideas are now impossible and await implementation in the future
    1. Alex
      Alex 30 November 2013 19: 10
      0
      Quote: Thunderbolt
      German developments during the war helped to tame the atom, brought the first man into space,
      Did NOT help and did not send. The German atomic program is a myth that snapped up. The cosmonautics of the Third Reich is generally from the field of clinical psychiatry (which is worth only the revelations of this supposedly astronaut - the 90-year-old half-mad old man who has survived from the mind).

      and many bold ideas are impossible even now and are awaiting implementation in the future
      And they will be impossible for a long time, as simply impossible in principle. So they did not do anything over time.
  4. biglow
    biglow 8 December 2012 13: 01
    +6
    during agony Hitler agreed to finance even the most fantastic projects, most of which turned out to be technical dead ends
  5. Mikhado
    Mikhado 8 December 2012 13: 37
    +5
    Another hitlerite wunderwafer, a dead end.
    But every Reichsmark spent on such nonsense is a minus "Hetzer", "Panther" or a stormgower, all this brought our victory closer and reduced losses. ATP for German engineers)) But this does not detract from their real capabilities and talents - at that time one of the most developed sciences was German.
    1. ramzes1776
      ramzes1776 9 December 2012 17: 32
      -2
      If the Germans lasted another 2-3 years and managed to make more than one nuclear bomb, it is not known how everything would turn out for the whole world and there would be winners in general.
      1. Alex
        Alex 30 November 2013 19: 19
        +1
        Quote: amzes1776
        If the Germans held out for another 2-3 of the year and managed to make more than one nuclear bomb
        Who would do that to them? Gunn and Stassman, who could not even get things off the ground in England, after which the frustrated Churchill sent them home? And who would give them these 2-3 years? Or would Stalin just sit and suck his paw, like a bear in a den, maybe it would somehow resolve itself? This WE broke the neck of Germany. This WE grind all their vaunted victorious army. This WE did not give them a minute of rest, not a day of respite, not a single chance to continue the war for one extra day. And this WE created the best weapon in the world, which put an end to Berlin. Or do you think that the war lasted for 2 of the year, our scientists could not have come up with anything necessary for the Victory? Or do you think the Russians are worse than the Germans? Before you write nonsense, learn physics, at least in the context of high school.
  6. postman
    postman 8 December 2012 15: 00
    +4
    Quote: biglow
    any even the most fantastic projects. Most of which turned out to be technical dead ends


    The history of the Focke-Wulf Triebflügel began in 1938, when Siemens engineer Otto Muck set out to patent an unusual vertical take-off airplane:


    This “sitting on the tail" coleopter was simply ideal for protecting single objects and covering defensive positions. He did not need airfields - only a small take-off area, which the street in the densely built-up city center could become.




    Triebflugel wing with Pabst ramjet in wind tunnel tests:


    LTH:
    Crew: one pilot
    Power plants: 3x Pabst ramjet engines with a thrust of 2000 ft (approximately 907 kg) each, reinforced with three Walther LREs of unknown modifications or two standard Walter 109-501 RATO engines with a thrust of 3306 f (about 1,5 tons) each.
    Wing Diameter: 38 ft (11,582 m)
    Total length 30 feet (9,144 m)
    Payload: 5200 lbs (2 kg)
    Top speed: 621 mph (999,403 km / h)
    Armament: 2x 30 mm MK-103 + 2x 20 mm MG-151


    After the war, the Allies applied the concept of takeoff with the vertical position of the fuselage in the design of the XFY-1 Pogo Convair and Lockheed XFV-1 battery fighter-interceptor.






    And now they are actively exploring aircraft with the principle of coleopter


    1. alex86
      alex86 8 December 2012 16: 55
      0
      There have been articles on the coleopter for a long time, and now, it seems to me, everything is already in the past - the scheme is interesting, but the effectiveness of the annular wing in horizontal flight is doubtful ...
  7. postman
    postman 8 December 2012 19: 47
    0
    Quote: alex86
    There have been articles on the coleopter for a long time, and now, it seems to me, everything is already in the past - the scheme is interesting, but the efficiency of the ring wing

    It depends on what is meant by "coleopter"?
    coleopter - n 1) Aviation: Coleopter (vertical take-off device with a ring wing), Koleopter, Strahlturbinen -FALSE DETERMINATION
    Ringfluegelflugzeug 2) Military: Propeller Ringflugzeug 3) Engineering: Ringfluegler 4) Aerodynamics: Coleopter, Radfluegel Flugzeu
    -RIGHT DEFINITION
    Quote: alex86
    about the effectiveness of the annular wing in horizontal flight is doubtful ...

    And what is not "dubious"? in the vertical direction it is on the drum, only pitch deviation.
    With a vertical start, the lifting force does not create? So wie so !!

    Ring wing-RING, very promising for small aircraft:


    The Heinkel Lerche take-off and landing chart was developed in 1944–1945 under the direction of Ernst Heinkel.


    But for "large aircraft" - not very:
    the closed-wing liner project was taken by Lockheed. Project Ring Wing

    Although the closed wing circuit prevents air from flowing from the high-pressure zone (lower part of the wing) to the low-pressure zone (upper), BUT the side parts of the wing are excluded from the process of creating lift — SIMPLY BALLAST.
    Grandfather Lenin: "quantity (size, weight) in quality (efficiency)
  8. I. Brovkin
    I. Brovkin 8 December 2012 21: 38
    0
    I immediately remembered the legendary shooter RTCW (Return to the Wolfenstein Castle 2001) from my childhood with his Cobra, although in principle there is a vertical take-off rocket, not a helicopter, but there are common features.
    I did not find a screenshot with it, but there is a video.