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Permanent Tag: Science Rating: Good Hits: 231 Comments: 0 Henri Coanda First Jet Engine Henri Coanda First Jet Engine The Coanda-1910 was the first jet-propelled aircraft ever built. It was constructed by Romanian inventor Henri Coanda and exhibited by him at the Second International Aeronautical Exhibition in Paris around October 1910. Unfortunately during a ground test of the engine on December 16, 1910, Coanda was caught unaware by the power of the engine and found himself briefly airborne. He lost control of the machine, and it crashed, burning, to the ground. Coanda was thrown clear of the crash. Between 1911 and 1914, he worked as technical director of Bristol Aeroplane Company in the UK, where he designed several airplanes known as Bristol-Coanda airplanes. In 1915, he went again to France where, working during World War I for Delaunay-Belleville in Saint-Denis, he designed and built three different models of propeller airplane, including the Coanda-1916, with two propellers mounted close to the tail; this design was to be reprised in the "Caravelle" transport airplane, for which Coanda was a technical consultant. He invented a new decorative material for use in construction, beton-bois; one prominent example of its use is the 1926 Palace of Culture, in Iasi. 1926: Working in Romania, Coanda developed a device to detect liquids under ground, useful in petroleum prospecting. Shortly thereafter, in the Persian Gulf region, he designed a system for offshore oil drilling. Probably the most famous of Coanda's discoveries is the Coanda Effect. After the crash of the "Coanda-1910" airplane, Coanda observed that flames and incandescent gas emitted by the fire tended to remain close to the fuselage. After more than 20 years studying this phenomenon along with his colleagues, Coanda described what Albert Metral was later to name the "Coanda Effect". This effect has been utilized in many aeronautical inventions and is crucial to successful supersonic flight. Sep 27, 2008 12:05 AM





Unmoderated Tag: Australia Rating: Ok Hits: 120 Comments: 0 A2 Hypersonic Jet Plane A2 Hypersonic Jet Plane Hypersonic jet could reach Australia in under five hours Tue Feb 5, 7:05 AM ET - AFP British engineers unveiled plans Tuesday for a hypersonic jet which could fly from Europe to Australia in less than five hours. The A2 plane, designed by engineering company Reaction Engines based in Oxfordshire, southern England, could carry 300 passengers at a top speed of almost 4,000 mph (6,400 kmh), five times the speed of sound. The LAPCAT (Long-Term Advanced Propulsion Concepts and Technologies) project, backed by the European Space Agency, could see the plane operating within 25 years, the firm's boss Alan Bond told the Guardian daily. "The A2 is designed to leave Brussels international airport, fly quietly and subsonically out into the north Atlantic at mach 0.9 before reaching mach 5 across the North Pole and heading over the Pacific to Australia," he said. The plane, which at 143 metres (469 feet) long would be about twice the size of the biggest current jets, could fly non-stop for up to 12,500 miles (20,000 km). It operates on liquid hydrogen, which is more ecologically friendly as it gives off water and nitrous oxide instead of carbon emissions. Passengers would have to put up with having no windows, due to problems with heat produced at high speeds. Instead designers may put flat screen televisions where the windows would be, giving the impression of seeing outside. Fares would be comparable with current first class tickets on standard flights, of around 3,500 pounds (4,700 euros, 6,900 dollars). The flight time from Brussels to Australia would be four hours and 40 minutes. "It sounds incredible by today's standards but I don't see why future generations can't make day trips to Australasia," he said. "Our work shows that it is possible technically; now it's up to the world to decide if it wants it." Sep 2, 2008 11:15 AM





 
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