PPRuNe Forums - View Single Post - Airbus patents Mach 4.5 plane
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Old 7th Aug 2015, 08:34
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Torquelink
 
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and while I'm unaware of anyone actually building an aircraft with a retracting engine
Schleicher ASH 26e self-launching motor glider has a retractable engine - so not even that's new!
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