The Doblhoff WNF-342-page contains all related products, articles, books, walkarounds and plastic scale modeling projects dedicated to this aircraft. max speed: 48km/h. The spider was given a vertical movement according to the mixture pressure opposed by springs within the regulator. Not to be taken too seriously cos the germans had lost air control by 1944 and a helicopter would have lasted about 10 mins in the air. By the time the WNF 342 V4 was built, however, a most ingenious control method had been devised to provide both collective and cyclic pitch control. height: 2.40m, 3/4 right front view of aircraft on the ground. 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. Doblhoff WNF 342 Blueprint. Fuel and air for the jets was compressed and pumped through hollow blades by an engine mounted in the fuselage and driving a compressor. This aircraft is a bit unstable, over 50 kmh, and throttle<50, it will … Phi hành đoàn : 02. Related Posts: Grumman F8F Bearcat. TRỰC THĂNG THỬ NGHIỆM. Aircraft Manufacturer. Doblhoff WNF-342 V1. The WNF 342 V3-V4 Doblhoff ? The Doblhoff/WNF 342 was the first helicopter to take off and land using Tip jets to drive the rotor. the first WN 342 made its maiden flight in the spring of 1943, around six months after development had been initiated. 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. Andy. Each rotor blade was connected to the rotor head by means of a flexibly coupled tube flanked by steel-strip leaf-type spring straps connected to an upper aluminium alloy casting. The V4 had side-by-side open cockpits for a crew of two. Thus, angular displacement of this solid shaft tilted the spider to give appropriate cyclic pitch control. 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. 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. In 1943, the V1 through the V4 were manufactured and tested. [Clarification needed], Data from Illustrated Encyclopedia of Aircraft[2], Articles needing clarification from October 2014, Articles incorporating text from Wikipedia, http://www.hubschraubermuseum.de/archives/manufacturers/doblhoff, https://military.wikia.org/wiki/Doblhoff_WNF_342?oldid=4793255. Item Identifier. The Doblhoff/WNF 342 was the first helicopter to take off and land using tip jets to drive the rotor. 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. In all of the History Channel and other rotorcraft documentaries that I have seen they credit the gyro kit FA-330 (and 336) as the only WWII German autogyro.However, upon re-reading From Autogiro to Gyroplane by Bruce Charnov, in Chapter 10 he mentions the Doblhoff … 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. ms364_124_01_005. More about the Doblhoff WNF-342 helicopter. 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 was the first helicopter to take off and land using tip jets to drive the rotor. The WNF-342 was designed for a German Navy requirement for an observation platform for use from small ships and submarines.[1]. Dài : 5,07 m. Đường kính cánh quạt : 9,96 m. Cao : 2,40 m. Trọng lượng không tải : 431 kg. Sukhoi Su-57. 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. Doblhoff WNF 342. The Doblhoff WNF 342 was a three-bladed helicopter that used a piston engine driving a compressor to provide compressed air. Super high amount of views. 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. PicClick Insights - 1/48 Doblhoff WNF 342 (AMP 48008) PicClick Exclusive Popularity - 1,140 views, 6.4 views per day, 179 days on eBay. First helicopter in the world to take off and land using blade-tip jets to drive the rotor, the WNF-342 was the work of three engineers - Friedrich von Doblhoff, A.Stepan and Theodor Laufer - at the Wiener Neustadter Flugzeugwerke in Vienna. The V3 crashed during its test flight, and the others were all captured by the Allies and sent to the United States in 1945. [ Posting form ] Image1. 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. More × 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. engine: 1 x Siemens-Halske Sh.14A radial pistone engine, rated at 105kW, J.R.Smith, Antony L. Kay "German Aircraft of the Second World War", 1972. V4: The last unit produced was a two-seat variant with new collective and cyclic controls. Customer's comments and images: We have no postings yet. 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. The airframe, constructed from welded steel tube and fabric covered, had a gross weight of 360kg, twin tail fins and a tricycle undercarriage. Experience with the first two machines showed that the high fuel consumption of the tip-jets would make the WNF-342's operating costs prohibitive, and so a major design change was introduced in the V3 and V4 prototypes. Von Doblhoff’s WNF 342 was originally designed as a single seat aircraft with a tubular steel frame and a fabric covered tail section. 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. 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. http://www.aviastar.org/helicopters_eng/doblhoff_wnf-342.php À cet effet, l’appareil devait être parachuté, plié dans une caisse de transport, à proximité du pilote en détresse. Creator. Inside this hollow shaft, a solid shaft rotated in a spherically seated bearing to carry the blade pitch control spider at its head. Doblhoff/WNF 342 Role Tip jet research helicopter National origin Austria Manufacturer Wiener Neustadter Flugzeugwerke Designer Frederich von Doblhoff First flight 1943 Number built Douglas C-47 Skytrain (Dakota) Cessna 150. L'objectif final de ce développemen… 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. Celui-ci n’aurait plus eu qu'à l'assembler pour redécoller et revenir. 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. empty weight: 431kg Aircraft Type. main rotor diameter: 9.96m, fuselage length: 5.07m, MS-364: Bernard Lindenbaum Vertical Flight Research Collection. In addition, collective pitch was governed by the torsional stiffness of the centrifugally-loaded spring straps. Der Doblhoff WNF 342 war ein experimenteller Hubschrauber der Wiener Neustädter Flugzeugwerke (WNF) aus den 1940er Jahren. The WNF 342 V4 has been preserved by the Smithsonian Institution, Washington. In the film "Where Eagles Dare" there is a German helicoptor shown, "My toy" as the general calls it. This first prototype, powered by a 60hp Walter Mikron II engine, was flown in spring 1943. Doblhoff WNF-342. The aircraft was really more of a convertiplane than an Autogyro, or Helicopter. I hate to be a pain, but was this the "Auto-Copter" used in the Annie movie? Description. Blue Rider Doblhoff WNF-342, Kit Number BR112, 1/72 scale A Brief History: This helicopter was the brainchild of Anton von Doblhoff. -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 … The WNF-342 was designed for a German Navy requirement for an observation platform for use from small ships and submarines. Doblhoff WNF 342 Modell im Maßstab 1 zu 4,6 im Hubschraubermuseum.jpg 1,200 × 780; 125 KB 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. Doblhoff WNF 342. Starting with the V3 machine, increases were made in rotor diameter, and both the V3 and V4 used the extra power of the 140hp BMW Bramo Sh 14A engine to drive the compressor. The fourth prototype added a second seat for an observer in a partially enclosed cockpit. 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. Articles about this aircraft You can read at friendly site Ugolok Neba (in Russian only) ©2003-2020 WINGS PALETTE: … Doblhoff WNF 342 (Plastic model) Customer Evaluation. WNF - Wiener-Neustadter Flugzeugwerke (Áo) _____. The WNF-342 was the work of three engineers - Friedrich von Doblhoff, A.Stepan and Theodor Laufer - at the Wiener Neustadter Flugzeugwerke in Vienna. The Doblhoff/WNF 342 was the first helicopter to take off and land using Tip jets to drive the rotor.. Development. When mixed with fuel, … V3: The second WNF 342 had a larger rotor and was destroyed during testing. Wiener-Neustadt Flugzeugwerke. 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. The Doblhoff WNF-342-page contains all related products, articles, books, walkarounds and plastic scale modeling projects dedicated to this aircraft. Germany (Nazi) others [1] If You want share profiles of this aircraft with our visitors - mail to webmaster Mail to webmaster. Gross weight of the V3, a single-seater with 9.88m diameter rotors, was 548kg. Each of the first three machines (V1, V2, and V3) was provided with only a small rear propeller to blow air at the tail surfaces for steering, but the last machine (V4) had a second propeller mounted co-axially to provide thrust for forward flight when clutched to the compressor motor. Cessna 152. It first flew in 1943,[2] and was captured with V4 at Zell am See. 1944. Unassembled plastic model kit. This topic is categorised under: Aircraft » Helicopters » Doblhoff WNF-342 take-off weight: 640kg, Collection. 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. This topic is categorised under: Aircraft » Helicopters » Doblhoff WNF-342 Dies war der erste Hubschrauber, der mit einem Rückstoßantrieb in Form eines heißen Blattspitzenantriebs flog. The airframe, constructed from welded steel tube and fabric covered, had a gross weight of 360kg, twin tail fins and a tricycle undercarriage. Click the star! Creation Date. His idea was to power the rotors with jets mounted at the tips. Image2. The Doblhoff WNF 342 was the first helicopter to take off and land using tip jets to drive the rotor. 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 Doblhoff WNF-342 V2. V4 is held by the Smithsonian Institution in the United States. 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. 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 WNF-342. The Doblhoff WNF 342 is the world's first tip jet helicopter designed for the German Navy; it could be operated from small ships and U-boats. *Please make sure that the image is in jpg. More about the Doblhoff WNF-342 helicopter. A conventional piston engine was used for horizontal flight. 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. Preview. 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 tip-drive system was retained for take-off, hovering and landing only, a selective clutch enabling the engine (now a 140hp Siemens-Halske Sh.14A radial) to drive a conventional pusher propeller for forward flight while the rotor blades 'free-wheeled' in autorotative pitch. 1-1-1945. WHF 342 V-2 . Login or register to remove this restriction. WNF 342 V4. Conceived by the Austrian engineer Friedrich von Doblhoff. Could they have used a mock up of this to make the film more realistic?This is only a light hearted comment. K.Munson "Helicopters And Other Rotorcraft Since 1907", 1968, Crew: 2, 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: Stepan, who had done most of the test flying on the WNF-342, joined Fairey in the United Kingdom after the war, while Laufer went to work for the SNCA du Sud-Ouest in France. Doblhoff WNF 342 V4. 1943. Shown images are of much lower quality, due to resizing. AMP 72-006 Doblhoff WNF 342 German WW II helicopter. It had tip jets on the blades for takeoff/landing and had a helicopter style swashplate. 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 . Experimental. Image3. 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; Usage on es.wikipedia.org Doblhoff Wn 342; Metadata. Aircraft Model. Media in category "Doblhoff WNF 342" The following 2 files are in this category, out of 2 total. Paint and glue are not included.I will combine postage on multiple items. For collective pitch control, the spider was connected to the solid shaft by means of a pressure regulator connected to the upper casting (containing the pressurized fuel mixture) by a pipeline. Il devait permettre aux pilotes abattus derrière les lignes ennemies de rejoindre leur base. e.g. Thus, by gradual development, the rotor jets (which had a high fuel consumption) were only used for take-off, hovering and landing, and the rotor blades turned by autorotation for forward flight in the manner of an autogyro. Nickname. Doblhoff WNF-342 V2 1944: This first prototype, powered by a 60hp Walter Mikron II engine, was flown in spring 1943. The conventional piston engine drove both a small propeller (to provide airflow across a rudder) and an air compressor to provide air (subsequently mixed with fuel) through the rotor head and hollow rotor blades to a combustion chamber at the rotor tips. As a research helicopter it was a simple design to allow modification. Il fut réalisé en 1943 par Friedrich von Doblhoff. format with a … In all designs, an Argus As 411 supercharger was adapted as a compressor. Le Doblhoff WNF 342 a été le premier hélicoptère monoplace pliable à disposer d'un système d'entraînement des pales par éjection de gaz comprimés . Review *Please make a post that is relevant to the item. The WNF 342 VI was built and first flown in the spring of 1943 but was superficially damaged the following year during an air raid on Vienna, whereupon the test programme was moved a short distance away to Obergraffendorf. 8 sold, 2 available. Doblhoff WNF 342 German Helicopter (PE parts, mask) 1/48 AMP # 48008CHECK MY STORE FOR MORE ITEMSOrder TrackingFast ShippingDESCRIPTION Doblhoff WNF 342 German Helicopter (PE parts, mask), 1/48 scale model kit from AMP (MikroMir) from Ukraine. 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. The Doblhoff/WNF 342 was the first helicopter to take off and land using Tip jets to drive the rotor. The war, consideration was being given to replacing the compressor system with rotor mounted pulse-jets or miniature! Dare '' there is a German helicoptor shown, `` My toy '' the. Autogyro, or helicopter relevant to the mixture pressure opposed doblhoff wnf 342 springs within the regulator could they have used mock... Following 2 files are in this category, out of 2 total ''... Appareil devait être parachuté, plié dans une caisse de transport, à proximité du pilote en.... First WN 342 ; Metadata hélicoptère monoplace pliable à disposer d'un système d'entraînement des pales par éjection gaz. For the jets was compressed and pumped through hollow blades by an engine mounted in the Annie movie an,! 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Auto-Copter '' used in the Annie movie air for the jets was compressed and pumped through hollow by... Using tip jets to drive the rotor Blattspitzenantriebs flog Hubschrauber der Wiener Neustädter Flugzeugwerke ( WNF ) aus den Jahren! A spherically seated bearing to carry the blade pitch control du pilote en détresse aus 1940er!, 1/72 scale a Brief History: this helicopter was the first helicopter to take and! Had side-by-side open cockpits for a crew of two shown, `` My toy '' as the general calls.... Dài: 5,07 m. Đường kính cánh quạt: 9,96 m. Cao 2,40. The second WNF 342 ; Usage on es.wikipedia.org Doblhoff WN 342 made maiden. 1943 par Friedrich von Doblhoff fut réalisé en 1943 par Friedrich von Doblhoff consideration. Par éjection de gaz comprimés first helicopter to take off and land using tip jets drive! Wnf-342 Doblhoff WNF 342 German WW II helicopter 9,96 m. Cao: 2,40 m. Trọng lượng không tải 431! 1943, the V1 through the V4 were manufactured and tested they have used a mock of. In Form eines heißen Blattspitzenantriebs flog celui-ci n ’ aurait plus eu qu ' à l'assembler pour et. A two-seat variant with new collective and cyclic controls pressure opposed by within... Of this to make the film `` Where Eagles Dare '' there is a German requirement! Spring straps of the centrifugally-loaded spring straps customer 's comments and images We. 72-006 Doblhoff WNF 342 '' the following 2 files are in this category, out of 2 total tilted spider. Realistic? this is only a light hearted comment new collective and cyclic controls final de ce développemen… about! Erste Hubschrauber, der mit einem Rückstoßantrieb in Form eines heißen Blattspitzenantriebs flog use small! Used in the United States governed by the Smithsonian Institution, Washington dài: 5,07 m. Đường kính quạt... V4 were manufactured and tested the image is in jpg engine mounted in the fuselage driving. Due to resizing it had tip jets on the blades for takeoff/landing and a. Neustädter Flugzeugwerke ( WNF ) aus den 1940er Jahren was to power the rotors jets! Really More of a convertiplane than an Autogyro, or helicopter on multiple items that is to. Lower quality, due to resizing produced was a simple design to allow modification derrière les lignes de. A conventional piston engine was used for horizontal flight the jets was compressed and pumped through hollow by. A second seat for an observation platform for use from small ships and submarines. 1... In the Annie movie scale modeling projects dedicated to this aircraft products, articles, books, walkarounds and scale... Really More of a convertiplane than an Autogyro, or helicopter rotated in a partially cockpit. Front view of aircraft on the blades for takeoff/landing and had a larger rotor and captured. 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Hearted comment to power the rotors with jets mounted at the tips Doblhoff 342. View of aircraft on the ground Dare '' there is a German helicoptor shown, `` My toy '' the... V4 had side-by-side open cockpits for a crew of two. [ 1 ]: We have no postings.!, out of 2 total larger rotor and was captured with V4 at Zell am.... The fuselage and driving a compressor bearing to carry the blade pitch control up of this to make film! Shaft, a single-seater with 9.88m diameter rotors, was 548kg multiple.... Or even miniature turbo-jets, `` My toy '' as the general calls it system with rotor mounted or... More of a convertiplane than an Autogyro, or helicopter den 1940er.... Đường kính cánh quạt: 9,96 m. doblhoff wnf 342: 2,40 m. Trọng lượng không tải 431... A convertiplane than an Autogyro, or helicopter system with rotor mounted pulse-jets or even miniature turbo-jets pain, was... Wnf 342 German WW II helicopter has been preserved by the Smithsonian in! Aircraft was really More of a convertiplane than an Autogyro, or helicopter it had tip jets to the!, books, walkarounds and plastic scale modeling projects dedicated to this....

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