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Ramjet Engines
A ramjet, or athodyd (aero thermodynamic duct), is a form of airbreathing jet engine that uses the forward motion of the engine to produce thrust. Since it produces no thrust when stationary (no ram air) ramjet-powered vehicles require an assisted take-off like a rocket assist to accelerate it to a speed where it begins to produce thrust. Ramjets work most efficiently at supersonic speeds around and can operate up to speeds of . Ramjets can be particularly useful in applications requiring a small and simple mechanism for high-speed use, such as missiles. The US, Canada, and UK had widespread ramjet powered missile defenses during the 1960s onward, such as the CIM-10 Bomarc and Bloodhound. Weapon designers are looking to use ramjet technology in artillery shells to give added range; a 120 mm mortar shell, if assisted by a ramjet, is thought to be able to attain a range of . They have also been used successfully, though not efficiently, as tip jets on the ends of helicopt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simple Ramjet Operation
Simple or SIMPLE may refer to: *Simplicity, the state or quality of being simple Arts and entertainment * ''Simple'' (album), by Andy Yorke, 2008, and its title track * "Simple" (Florida Georgia Line song), 2018 * "Simple", a song by Johnny Mathis from the 1984 album ''A Special Part of Me'' * "Simple", a song by Collective Soul from the 1995 album ''Collective Soul'' * "Simple", a song by Katy Perry from the 2005 soundtrack to ''The Sisterhood of the Traveling Pants'' * "Simple", a song by Khalil from the 2017 album ''Prove It All'' * "Simple", a song by Kreesha Turner from the 2008 album '' Passion'' * "Simple", a song by Ty Dolla Sign from the 2017 album ''Beach House 3'' deluxe version * ''Simple'' (video game series), budget-priced console games Businesses and organisations * Simple (bank), an American direct bank * SIMPLE Group, a consulting conglomeration based in Gibraltar * Simple Shoes, an American footwear brand * Simple Skincare, a British brand of soap an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comical History Of The States And Empires Of The Moon
''The Other World: Comical History of the States and Empires of the Moon'' (french: L’Autre monde ou les états et empires de la Lune) was the first of three satirical novels written by Cyrano de Bergerac. It was published posthumously in 1657 and, along with its companion work '' The States and Empires of the Sun'', is considered one of the earliest published science fiction stories. Arthur C. Clarke credited the book with the first description of rocket-powered spaceflight, and with the invention of the ramjet. Plot summary The book is narrated in the first person by a character also named Cyrano. Cyrano attempts to reach the Moon to prove there is a civilization that sees the Earth as its own moon. He launches himself into the sky from Paris by strapping bottles of dew to his body, but lands back on Earth. Believing he had traveled straight up and down, he is confused by local soldiers who tell him he is not in France; they escort him to the provincial governor who informs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GIRD
The Moscow-based Group for the Study of Reactive Motion (also 'Group for the Investigation of Reactive Engines and Reactive Flight' and 'Jet Propulsion Study Group') (russian: Группа изучения реактивного движения, Gruppa izucheniya reaktivnogo dvizheniya, better known for its Russian abbreviation , GIRD) was a Soviet research bureau founded in 1931 to study various aspects of rocketry. GIRD launched the first Soviet Liquid-propellant rocket, liquid propellant rocket in August 1933. In November 1933 it was incorporated into the Reactive Scientific Research Institute (, , РНИИ, RNII). History The inspiration for establishing the organisation came from Friedrich Zander, Fredrich Tsander, a scientist, inventor, and romantic who dreamed of space travel. Tsander had begun to consider rocket-powered interplanetary flight as early as 1907 and was one of the founding members of the Society for the Study of Interplanetary Communication in 1924. In Septem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
