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Walter HWK 109-500
The Walter HWK 109-500 was a Liquid-propellant rocket, liquid-fuelled rocket engine developed by Hellmuth Walter Kommanditgesellschaft, Walter in Germany during the World War II, Second World War. Description The 109-500 is a self-contained, modular monopropellant JATO, ''Starthilfe'' (take-off assist) engine in a pod, able to produce thrust for thirty seconds. After the fuel was expended, the pod was jettisoned and it returned to earth by parachute, with the parachute packed externally, onto the blunt forward end of the pod. The T-Stoff monopropellant, stored in the large spherical tank within the ''Starthilfe'' module's forward end, needed to react with a catalyst to provide the boosting thrust for an aircraft on takeoff - this Z-Stoff Sodium permanganate, sodium or Calcium permanganate, calcium-based, alkaline permanganate-compound (in an aqueous solution) catalyst was provided in a small tank above the reaction chamber just forward of the exhaust nozzle, with compressed a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sibling projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by ''Smithsonian Magazine, Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outsi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arado Ar 234
The Arado Ar 234 ''Blitz'' (English: lightning) is a jet-powered bomber designed and produced by the German aircraft manufacturer Arado. It was the world's first operational turbojet-powered bomber, seeing service during the final years of the Second World War. Development of the Ar 234 can be traced back to the latter half of 1940 and the request to tender from the Ministry of Aviation to produce a jet-powered high-speed reconnaissance aircraft. Arado was the only respondent with their ''E.370'' design. While its range was beneath that of the Ministry's specification, an initial order for two prototypes was promptly issued to the company, designated ''Ar 234''. While both of the prototypes had been mostly completed prior to the end of 1941, the Junkers Jumo 004 turbojet engines were not available prior to February 1943. Due to engine unreliability, the maiden flight of the Ar 234 V1 was delayed until 30 July 1943. In addition to the original reconnaissance-orientated ''Ar 234 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Aircraft Engines
This is an alphabetical list of aircraft engines by manufacturer. 0–9 2si *2si 215 *2si 230 *Cuyuna 430, 2si 430 *2si 460 *2si 500 *2si 540 *2si 690 3W ''Source: RMV'' *3W 106iB2 *3W-110 *3W-112 *3W-170 *3W-210 *3W-220 A Abadal (Francisco Serramalera Abadal) *Abadal Y-12 350/400 hp ABC ''Source: Lumsden.'' * ABC 8 hp * ABC 30 hp V-4 * ABC 45 hp V-6 * ABC 60 hp V-8 * ABC 85 hp V-6 * ABC 100 hp V-8 * ABC 115 hp * ABC 170 hp V-12 * ABC 225 hp V-16 *ABC Dragonfly *ABC Gadfly *ABC Gnat *ABC Hornet *ABC Mosquito *ABC Scorpion *ABC Wasp *ABC type 10 APU *ABC type 11 APU ABECO ''Source: RMV'' *ABECO GEM Aberg ''Source: RMV'' *Type Sklenar ABLE ''Source: RMV'', Able Experimental Aircraft Engine Co. (Able Experimental Aircraft Engine Co., Altimizer, Hoverhawk (US)) *ABLE 2275 *ABLE 2500 *ABLE VW x 2 Geared Drive Accurate Automation Corp *Accurate Automation AT-1500 *Accurate Automation AT-1700 Ace (Ace Amer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter HWK 109-507
The HWK 109-507 was a liquid-propellant rocket engine developed by Germany during World War II. It was used to propel the Hs 293 anti-ship guided missile. It was produced by Hellmuth Walter Kommanditgesellschaft (HWK). Like other Walter engines it used hydrogen peroxide as a propellant. Missile The Hs293 has been variously described as a missile or as a boosted glide bomb. It consisted of an SC500 bomb casing, fitted with wings, engine and radio control. Control equipment was housed in a rearward extension of the bomb casing but the motor was mounted in a separate housing beneath. It had originally been developed as an unpowered glide bomb, "Gustav Schwartz Propellerwerke", and the engine was added later. After flight tests, a visible tracking flare was also added, in a further rearward extension. As the engine was mounted below the missile fuselage, the exhaust nozzle pointed downwards at 30°, so as to align the line of thrust with the centre of gravity of the missile. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxidiser
An oxidizing agent (also known as an oxidant, oxidizer, electron recipient, or electron acceptor) is a substance in a redox chemical reaction that gains or " accepts"/"receives" an electron from a (called the , , or ''electron donor''). In other words, an oxidizer is any substance that oxidizes another substance. The oxidation state, which describes the degree of loss of electrons, of the oxidizer decreases while that of the reductant increases; this is expressed by saying that oxidizers "undergo reduction" and "are reduced" while reducers "undergo oxidation" and "are oxidized". Common oxidizing agents are oxygen, hydrogen peroxide, and the halogens. In one sense, an oxidizing agent is a chemical species that undergoes a chemical reaction in which it gains one or more electrons. In that sense, it is one component in an oxidation–reduction (redox) reaction. In the second sense, an oxidizing agent is a chemical species that transfers electronegative atoms, usually oxygen, to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-test Peroxide
High-test peroxide (HTP) is a highly concentrated (85 to 98%) solution of hydrogen peroxide, with the remainder consisting predominantly of water. In contact with a catalyst, it decomposes into a high-temperature mixture of steam and oxygen, with no remaining liquid water. It was used as a propellant of HTP rockets and torpedoes, and has been used for high-performance vernier engines. Properties Hydrogen peroxide works best as a propellant in extremely high concentrations (roughly over 70%). Although any concentration of peroxide will generate some hot gas (oxygen plus some steam), at concentrations above approximately 67%, the heat of decomposing hydrogen peroxide becomes large enough to completely vaporize all the liquid at standard pressure. This represents a safety and utilization turning point, since decomposition of any concentration above this amount is capable of transforming the liquid entirely to heated gas (the higher the concentration, the hotter the resulting gas). Thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalytic
Catalysis () is the increase in reaction rate, rate of a chemical reaction due to an added substance known as a catalyst (). Catalysts are not consumed by the reaction and remain unchanged after it. If the reaction is rapid and the catalyst recycles quickly, very small amounts of catalyst often suffice; mixing, surface area, and temperature are important factors in reaction rate. Catalysts generally react with one or more reactants to form reaction intermediate, intermediates that subsequently give the final reaction product, in the process of regenerating the catalyst. The rate increase occurs because the catalyst allows the reaction to occur by an alternative mechanism which may be much faster than the noncatalyzed mechanism. However the noncatalyzed mechanism does remain possible, so that the total rate (catalyzed plus noncatalyzed) can only increase in the presence of the catalyst and never decrease. Catalysis may be classified as either homogeneous catalysis, homogeneou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messerschmitt Me 323
The Messerschmitt Me 323 ''Gigant'' ("Giant") was a German military transport aircraft of World War II. It was a powered variant of the Messerschmitt Me 321, Me 321 military glider and was the largest land-based transport aircraft to fly during the war. In total, 213 were made, with 15 being converted from the Me 321. Development The Me 323 was the result of a 1940 German requirement for a large assault glider in preparation for Operation Sea Lion, the projected invasion of Great Britain. The DFS 230 light glider had already proven its worth in the Battle of Fort Eben-Emael in Belgium (the first ever assault by gliderborne troops), and would later be used in the Battle of Crete, invasion of Crete in 1941. However, in order to mount an invasion across the English Channel, the Germans would need to be able to airlift vehicles and other heavy equipment as part of an initial assault wave. Although Operation Sea Lion was cancelled, the requirement for a heavy air transport capabil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messerschmitt Me 321
The Messerschmitt Me 321 ''Gigant'' was a large German cargo glider developed and used during World War II. Intended to support large-scale invasions, the Me 321 had very limited use due to the low availability of suitable tug aircraft, high vulnerability whilst in flight, and its difficult ground handling, both at base and at destination landing sites. The Me 321 was developed, in stages, into the six-engined Messerschmitt Me 323 ''Gigant'', which removed some of the problems with ground handling, although the payload was reduced. Vulnerability to ground fire and aerial attack remained a constant problem during operations of all variants. Development During the preparations for a possible invasion of Britain during World War II (Operation Sea Lion) the Luftwaffes Transport Command saw an obvious need existed for a larger-capacity cargo- and troop-carrying aircraft than its mainstay, the Junkers Ju 52. When the plans for Operation Sea Lion were shelved in December 1940, and pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinkel He 111
The Heinkel He 111 is a German airliner and medium bomber designed by Siegfried and Walter Günter at Heinkel Flugzeugwerke in 1934. Through development, it was described as a wolf in sheep's clothing. Due to restrictions placed on Germany after the First World War prohibiting bombers, it was presented solely as a civil airliner, although from conception the design was intended to provide the nascent Luftwaffe with a heavy bomber. Perhaps the best-recognised German bomber of World War II due to the distinctive, extensively glazed "greenhouse" nose of the later versions, the Heinkel He 111 was the most numerous Luftwaffe bomber during the early stages of the war. It fared well until it met serious fighter opposition during the Battle of Britain, when its defensive armament was found to be inadequate. As the war progressed, the He 111 was used in a wide variety of roles on every front in the European theatre. It was used as a strategic bomber during the Battle of Britain, a to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Junkers Ju 88
The Junkers Ju 88 is a twin-engined multirole combat aircraft designed and produced by the German aircraft manufacturer Junkers Aircraft and Motor Works. It was used extensively during the Second World War by the ''Luftwaffe'' and became one of the most versatile combat aircraft of the conflict. The Ju 88 originated from a ''Reichsluftfahrtministerium'' (RLM) requirement issued in 1934 for a new multipurpose aircraft. Junkers was one of several firms to respond, producing two separate design studies that produced both the Ju 85 and Ju 88. The design work was headed by Junkers' chief designer Ernst Zindel. The Ju 88 was envisioned to function as a so-called '' Schnellbomber'' ("fast bomber") that would evade interception by enemy fighters of its era by flying at high speed. On 21 December 1936, the first prototype performed its maiden flight. The performance of the third prototype was highly favourable, resulting in the competing Henschel Hs 127 and Messerschmitt Bf 162 bein ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blohm & Voss BV 138
The Blohm & Voss BV 138 ''Seedrache'' (Sea Dragon) was a trimotor flying boat designed and built by the Nazi Germany, German aircraft manufacturer Blohm & Voss (aircraft), Blohm & Voss. It served as the ''Luftwaffe''s primary seaborne long-range maritime patrol and Aerial reconnaissance, naval reconnaissance aircraft operated by the ''Luftwaffe'' during the Second World War. The BV 138 was a pre-war design by Dr Richard Vogt (aircraft designer), Richard Vogt, originally developed under the company name of Hamburger Flugzeugbau, and thus it was initially designated ''Ha 138'' instead. It had an uncommon appearance due to its combination of unusual design features, such as its twin boom tail unit, short Hull (watercraft), hull, and trimotor engine configuration. In reference to the side-view shape of its fuselage, the aircraft was often referred to via the nickname ''Der Fliegende Holzschuh'' ("Flying clog (shoe), Clog").Nowarra 1997, original German title of the Schiffer book. Or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
