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P80 (rocket stage) : ウィキペディア英語版 | P80 (rocket stage)
P80 is solid-fuel main-stage rocket engine used on a European Space Agency Vega Rocket (in the P80FW version). It is the world's biggest and most powerful one-piece solid-fuel rocket engine.〔 == History== The P80's development was led by a joint team of ESA, CNES and ASI since 2005, with Avio selected as the prime contractor.〔 The first test of the P80 engine was completed at Guiana Space Centre in November 2006 followed by qualification tests in December 2007.〔 The first launch was completed on 13 February 2012, with the first commercial launch following on 7 May 2012. Total development cost of the engine reached €76 million.〔
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