Trzeci lot rakietowy VSS Unity BY MICHAŁ MOROZ ON 27 LIPCA 2018
(...) 26 lipca przeprowadzono trzeci test silnika rakietowego, który wzniósł VSS Unity na 52 kilometry wysokości. Silnik został odpalony na 42 sekundy, a sam pojazd przyśpieszył do prędkości niemal dwóch i pół macha. Za sterami VSS Unity siedzieli Dave Mackay oraz Mike ‘Sooch’ Masucci. Samolot WhiteKnightTwo o nazwie VMS Eve, od którego na wysokości 14,1 km oddzielił się SpaceShipTwo, był sterowany przez Todda Ericsona i Kelly Latimer.
Nagranie z trzeciego lotu Virgin Galactic.
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https://kosmonauta.net/2018/07/trzeci-lot-rakietowy-vss-unity/Virgin Galactic’s rocket plane climbs closer to spaceJuly 27, 2018 Stephen Clark
(...) Here is a list of the VSS Unity test flights to date:
April 5: Apogee of 84,271 feet (25.7 kilometers); Top speed of Mach 1.87
May 29: Apogee of 114,500 feet (34.3 kilometers); Top speed of Mach 1.9
July 26: Apogee of 170,800 feet (52 kilometers); Top speed of Mach 2.47
Virgin Galactic said Thursday’s test flight gathered data on SpaceShipTwo’s supersonic aerodynamics and thermal dynamics. Sensors inside the passenger cabin also recorded information on the environment future commercial riders will experience, such as temperature, pressures, humidity, acoustics, thermal response, vibration, acceleration and radiation, the company said in a statement.
Founded by billionaire entrepreneur Richard Branson, the company did not provided an updated timeframe on when SpaceShipTwo can begin commercial service, but several more test flights are expected before Virgin Galactic achieves that milestone. Operational flights will be based at the Spaceport America facility in New Mexico. (...)
https://spaceflightnow.com/2018/07/27/virgin-galactics-rocket-plane-climbs-closer-to-space/https://www.nasaspaceflight.com/2018/07/vss-unity-third-powered-flight-mach-2/https://spacenews.com/virgin-galactics-spaceshiptwo-takes-a-step-closer-to-space/