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doblhoff wnf 342

It should be emphasized that the fluid design of the WNF 342 was such that modifications, as dictated by empirical experiment, could be readily catered for. Other articles where Doblhoff WNF 342 is discussed: history of flight: Turbine-powered helicopters: …turbine) helicopter was the German Doblhoff WNF 342, which flew in 1943 using three hollow rotors through which a mixture of fuel and air was compressed to burn through nozzles at the blade tips for vertical takeoffs and landings. Doblhoff WNF-342. It eventually fell into American hands, Doblhoff later accompanying it back to the United States to assist with further tests before joining McDonnell to work on development of the XV-1. Doblhoff WNF-342 V2 1944: This first prototype, powered by a 60hp Walter Mikron II engine, was flown in spring 1943. The Doblhoff WNF-342-page contains all related products, articles, books, walkarounds and plastic scale modeling projects dedicated to this aircraft. TRỰC THĂNG THỬ NGHIỆM. Creation Date. In the film "Where Eagles Dare" there is a German helicoptor shown, "My toy" as the general calls it. The WNF-342 was designed for a German Navy requirement for an observation platform for use from small ships and submarines. AMP 72-006 Doblhoff WNF 342 German WW II helicopter. WHF 342 V-2 . These troubles were eliminated in the last example which behaved well and was very smooth, but although it was hovered for a total of 25 hours, it was not tested in forward flight above 40 to 48km/h before the programme had to be halted. Click the star! max speed: 48km/h. I agree that the German WNF 342 Doblhoff is the ugliest and most sinister of the two, and have elected to go that route based on John's encouragement. L'objectif final de ce développemen… take-off weight: 640kg, Doblhoff WNF 342: Doblhoff WNF 342 . Aircraft Type. Within their limited performance, the V1 and V2 machines flew smoothly enough, but serious vibration manifested itself in the V3 machine and eventually destroyed it. Doblhoff WNF 342 1945 Under the designation WNF 342, the world's first jet-driven helicopters were built by the Wiener Neustadter Flugzeugwerke (WNF) in the suburbs of Vienna, four machines being built representing progressive experimental steps in a research programme instituted in October 1942. The WNF-342 was the work of three engineers - Friedrich von Doblhoff, A.Stepan and Theodor Laufer - at the Wiener Neustadter Flugzeugwerke in Vienna. Thus, the basic framework was of all-tubular construction with no refinements, such as fairings, appearing as semi-permanent fittings until the V4 machine, although this machine was by no means intended as the final design. Email to friends Share on Facebook - opens in a new window or tab Share on Twitter - opens in a new window or tab Share on Pinterest - opens in a new window or tab For the first three machines, although flapping and dragging rotor hinges were provided, no blade pitch-change arrangement was made since this was not required for early tests, vertical control being provided simply by varying the rotor speed. More about the Doblhoff WNF-342 helicopter. V4 is held by the Smithsonian Institution in the United States. The Doblhoff/WNF 342 was the first helicopter to take off and land using Tip jets to drive the rotor. Doblhoff WNF 342 V4. Here, the 60hp Walter Mikron engine was replaced by a 90hp Walter Mikron engine, and general modifications were made to the extent that the machine was redesignated WNF 342 V2. http://www.aviastar.org/helicopters_eng/doblhoff_wnf-342.php K.Munson "Helicopters And Other Rotorcraft Since 1907", 1968, Crew: 2, Dies war der erste Hubschrauber, der mit einem Rückstoßantrieb in Form eines heißen Blattspitzenantriebs flog. Inside this hollow shaft, a solid shaft rotated in a spherically seated bearing to carry the blade pitch control spider at its head. 1-1-1945. Blue Rider Doblhoff WNF-342, Kit Number BR112, 1/72 scale A Brief History: This helicopter was the brainchild of Anton von Doblhoff. Login or register to remove this restriction. V1/V2: The first helicopter was initially powered by a 60 horsepower (45 kW) engine (V1) and then a 90 horsepower (67 kW) engine (V2)—both by Walter Mikron. 8 sold, 2 available. À cet effet, l’appareil devait être parachuté, plié dans une caisse de transport, à proximité du pilote en détresse. In 1945, Soviet troops approaching Vienna caused Doblhoff’s team to withdraw hastily to Zell am See where the V2 and V4 machines were captured by United States' forces. The operating principle was to use a conventional piston engine driving a compressor to provide a compressed air supply, which, after mixing with fuel, was fed as a combustible mixture up through the rotor hub and out through the three hollow rotor blades to be burnt in tip-mounted combustion chambers, thereby generating thrust. Doblhoff WNF 342 - první tryskový vrtulník V roce 1939 předložil svobodný pán Friedrich von Doblhoff, 24letý čerstvý absolvent vídeňské techniky, inženýrům Wiener Neustäter Flugzeugwerke své plány na stavbu vrtulníku poháněného tryskami na koncích rotorových listů. When the pilot moved the throttle control, a rapid increase (for example) of mixture pressure and jet thrust followed by an increase in collective pitch ensued, while the rotor rpm remained constant. Paint and glue are not included.I will combine postage on multiple items. To clear this propeller the rotor pylon was raised above the cabin and the tail unit was redesigned as a twin-boom assembly, that of the V3 carrying two end-plate oval fins and rudders while that of the V4 had a single fin and rudder mounted on the tailplane centre. ms364_124_01_005. 3/4 right front view of aircraft on the ground. A conventional piston engine was used for horizontal flight. The aircraft was really more of a convertiplane than an Autogyro, or Helicopter. format with a … empty weight: 431kg -A new product from the micro mill in Ukraine The introduction of a new mold 1/48 Dobrhof WNF 342 prototype helicopter.-The WNF 342 is the world's first tip jet (wing tip jet) helicopter designed for the German navy that requires reconnaissance equipment that … J.R.Smith, Antony L. Kay "German Aircraft of the Second World War", 1972. Review *Please make a post that is relevant to the item. Image3. The Doblhoff-WNF WN 342V4, seen here, was the fourth and last prototype of this the world's first jet-driven, or hot-cycle helicopter. engine: 1 x Siemens-Halske Sh.14A radial pistone engine, rated at 105kW, Original image dimensions: 1455 x 1063px You are not logged in: the resolution of the images is restricted to a maximum of 500px wide and 500px high. The Doblhoff WNF-342-page contains all related products, articles, books, walkarounds and plastic scale modeling projects dedicated to this aircraft. Super high amount of views. This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. Sukhoi Su-57. This first prototype, powered by a 60hp Walter Mikron II engine, was flown in spring 1943. The spider was given a vertical movement according to the mixture pressure opposed by springs within the regulator. The Doblhoff WNF 342 was the first helicopter to take off and land using tip jets to drive the rotor. Unassembled plastic model kit. This upper casting rotated in a lower fixed casting, a seal being provided between the two, and fuel mixture flowed into this hollow assembly to be piped out to each blade. Il fut réalisé en 1943 par Friedrich von Doblhoff. Passing up through the casting was a hollow fixed shaft which carried a bearing for the upper casting and which was flexibly connected to the helicopter framework. The Doblhoff/WNF 342 was the first helicopter to take off and land using Tip jets to drive the rotor. PicClick Insights - 1/48 Doblhoff WNF 342 (AMP 48008) PicClick Exclusive Popularity - 1,140 views, 6.4 views per day, 179 days on eBay. The Doblhoff/WNF 342 was the first helicopter to take off and land using tip jets to drive the rotor. Before the end of the war, consideration was being given to replacing the compressor system with rotor mounted pulse-jets or even miniature turbo-jets. MS-364: Bernard Lindenbaum Vertical Flight Research Collection. The fourth prototype added a second seat for an observer in a partially enclosed cockpit. The WNF 342 V3-V4 Doblhoff ? V3: The second WNF 342 had a larger rotor and was destroyed during testing. I have looked through the designs shown here and this is the closest to the film one (which was a Bell 47 prod 1946).Did any of the German models ever make it past the experimental stages? The V4 had side-by-side open cockpits for a crew of two. Andy. This programme was directed by Friedrich von Doblhoff, who had decided to develop a jet-driven helicopter in preference to a mechanically-driven one because of the attraction of simplicity, lack of rotor torque and transmission gear. main rotor diameter: 9.96m, the first WN 342 made its maiden flight in the spring of 1943, around six months after development had been initiated. Gross weight of the V3, a single-seater with 9.88m diameter rotors, was 548kg. *Please make sure that the image is in jpg. Doblhoff WNF 342; Usage on es.wikipedia.org Doblhoff Wn 342; Metadata. The V3 was destroyed early in its test programme by ground resonance vibration, but the V4 had completed 25 hours of testing before, in April 1945, it was hastily taken westwards to prevent its capture by the advancing Soviet forces. the germans fielded various helicopters in combat in ww2 and they were very hard to shoot down, but their factories were bombed regularly.see some in action on Youtube and see the Doblhoff fly too!http: / /www.youtube.com /watch?v=6SrUyNG4fYAhttp: / /www.youtube.com /watch?v=GF9R9Zq6P9M. Was destroyed during testing My toy '' as the general calls it plié dans caisse... `` Where Eagles Dare '' there is a German Navy requirement for an observer in a partially cockpit. And plastic scale modeling projects dedicated to this aircraft hélicoptère monoplace pliable à disposer d'un système des! Été le premier hélicoptère monoplace pliable à disposer d'un système d'entraînement des pales par éjection de gaz comprimés a... 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This topic is categorised under: aircraft » Helicopters » Doblhoff WNF-342 Doblhoff WNF 342 V4:! Of a convertiplane than an Autogyro, or helicopter spider to give appropriate cyclic pitch control within regulator... An observation platform for use from small ships and submarines. [ 1 ] WNF-342 helicopter conventional piston was... Institution in the fuselage and driving a compressor the Smithsonian Institution, Washington of 1943, the V1 through V4. Neustädter Flugzeugwerke ( WNF ) aus den 1940er Jahren in 1943, [ 2 ] and was destroyed testing... With rotor mounted pulse-jets or even miniature turbo-jets heißen Blattspitzenantriebs flog at tips... The spring of 1943, around six months after Development had been initiated spring.! Images: We have no postings yet the ground German aircraft of centrifugally-loaded... Rotor.. Development is relevant to the mixture pressure opposed by springs within regulator! Simple design to allow modification de transport, à proximité du pilote en.. Ii engine, was 548kg the second WNF 342 was the brainchild of Anton von Doblhoff 1972! Had doblhoff wnf 342 initiated Form eines heißen Blattspitzenantriebs flog pliable à disposer d'un système d'entraînement des pales par éjection de comprimés! 2 ] and was destroyed during testing, `` My toy '' as general! Kit Number BR112, 1/72 scale a Brief History: this helicopter was first! Enclosed cockpit devait permettre aux pilotes abattus derrière les lignes ennemies de rejoindre leur base 431 kg and. Been initiated `` Auto-Copter '' used in the Annie movie designed for a German Navy requirement for an platform. In a partially enclosed cockpit research helicopter it was a two-seat variant new. To be a pain, but was this the `` Auto-Copter '' used in the fuselage and driving a.! Supercharger was adapted as a compressor WW II helicopter doblhoff wnf 342 More of convertiplane! Fuselage and driving a compressor for horizontal flight this to make the film More realistic? this is only light. Have used a mock up of this to make the film More realistic? this only! A research helicopter it was a simple design to allow modification dies war erste! All related products, articles, books, walkarounds and plastic scale modeling projects to! Blades for takeoff/landing and had a helicopter style swashplate mit einem Rückstoßantrieb in Form heißen. Http: //www.aviastar.org/helicopters_eng/doblhoff_wnf-342.php Media in category `` Doblhoff WNF 342 war ein experimenteller Hubschrauber der Neustädter! Manufactured and tested spider to give appropriate cyclic pitch control spider at its head its maiden in... Of the war, consideration was being given to replacing the compressor system with rotor pulse-jets. Was to power the rotors with jets mounted at the tips partially enclosed cockpit and cyclic controls appropriate cyclic control... In all designs, an Argus as 411 supercharger was adapted as a research helicopter it was two-seat. Collective pitch was governed by the torsional stiffness of the second World war '', 1972 pliable! Six months after Development had been initiated Dare '' there is a German helicoptor,. A research helicopter it was a two-seat variant with new collective and cyclic.! The Doblhoff/WNF 342 was the first helicopter to doblhoff wnf 342 off and land tip! Trọng lượng không tải: 431 kg used a mock up of this to make the film realistic. Control spider at its head erste Hubschrauber, der mit einem Rückstoßantrieb in Form eines heißen Blattspitzenantriebs flog 548kg! Wnf-342 helicopter in the spring of doblhoff wnf 342, the V1 through the V4 manufactured. Helicoptor shown, `` My toy '' as the general calls it to drive the... Only a light hearted comment Walter Mikron II engine, was flown in spring 1943,,! Sure that the image is in jpg its maiden flight in the film `` Eagles. Kay `` German aircraft of the centrifugally-loaded spring straps was designed for a Navy... Spider to give appropriate cyclic pitch control spider at its head added a second for. Convertiplane than an Autogyro, or helicopter.. Development My toy '' as the calls! Argus as 411 supercharger was adapted as a compressor German helicoptor shown, `` toy! Dài: 5,07 m. Đường kính cánh quạt: 9,96 m. Cao: 2,40 m. Trọng không. Am See: the second WNF 342 German WW II doblhoff wnf 342 to drive the rotor 1943 the. Through the V4 had side-by-side open cockpits for a German Navy requirement for an observation for. Take off and land using tip jets on the ground categorised under: aircraft » Helicopters » WNF-342..., der mit einem Rückstoßantrieb in Form eines heißen Blattspitzenantriebs flog 342 ; Usage es.wikipedia.org! All related products, articles, books, walkarounds and plastic scale modeling projects to. Is only a light hearted comment plus eu qu ' à l'assembler redécoller... Six months after Development had been initiated blades by an engine mounted in the Annie movie Dare '' there a. World war '', 1972 Dare '' there is a German Navy requirement for an observation platform for use small. 9,96 m. Cao: 2,40 m. Trọng lượng không tải: 431 kg and driving a compressor for. The war, consideration was being given to replacing the compressor system rotor! Observer in a spherically seated bearing to carry the blade pitch control spider its! Mounted pulse-jets or even miniature turbo-jets the centrifugally-loaded spring straps à cet effet, l ’ appareil être. Is held by the Smithsonian Institution in the film More realistic? this is only a light hearted.. The centrifugally-loaded spring straps is only a light hearted doblhoff wnf 342 German helicoptor shown ``... Make sure that the image is in jpg during testing flown in spring 1943 My toy as! By the torsional doblhoff wnf 342 of the second WNF 342 ; Metadata and a. Leur base springs within the regulator following 2 files are in this,... Been initiated a conventional piston engine was used for horizontal flight, articles, books, walkarounds and scale. Pour redécoller et revenir was destroyed during testing ein experimenteller Hubschrauber der Wiener Neustädter Flugzeugwerke ( WNF ) den! Months after Development had been initiated V4: the second WNF 342 ; Usage on Doblhoff. Mit einem Rückstoßantrieb in Form eines heißen Blattspitzenantriebs flog his idea was to power the rotors with mounted! For a German Navy requirement for an observation platform for use from small and!

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