NASASpaceFlight.com Forum
International Space Flight (ESA, Russia, China and others) => Russian Launchers - Soyuz, Progress and Uncrewed => Topic started by: starbase on 02/05/2019 02:30 pm
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Intriguing (new?) concept for a reusable Russian spaceplane, which will be carried piggyback on a M-55 plane to launch altitude.
Source: http://www.thedrive.com/the-war-zone/26323/russia-plans-to-launch-tiny-space-plane-off-back-of-high-flying-m-55-research-jet
https://ria.ru/20190204/1550328563.html