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ROCKET SCIENCE
Update from Mojave: VSS Unity successfully completes high speed glide flight
by Staff Writers
Mojave CA (SPX) Jan 15, 2018


At this stage of the glide flight programme, each flight is essentially a dry run for rocket-powered test flights.

January blues? Not a problem in Mojave as VSS Unity successfully completed her seventh glide flight!

It's been a few months since our last flight, during which we worked through a planned period of focused ground time. This involved extensive analysis, testing and small modifications to ensure vehicle readiness for the higher loads and forces of powered test flight.

[Today] we tested that work by pushing Unity's atmospheric capabilities hard, touching top-end glide speeds as pilots Mark 'Forger' Stucky and Michael 'Sooch' Masucci completed a busy test card.

Alongside confirming the work that has taken place on the ground, the glide flight tested transonic flight performance, stability and control. After release from mothership VMS Eve, the spaceship was immediately pushed into a sharp descent, accelerating to Mach 0.9 which is around the maximum airspeed we can achieve without igniting the rocket motor!

At this stage of the glide flight programme, each flight is essentially a dry run for rocket-powered test flights. Where possible the team replicates those powered flight conditions by, for example, adding water ballast to simulate the weight and positioning of the rocket motor.

As during previous flights, the water ballast was jettisoned at around 22,000 feet, allowing the pilots to complete the flight and land in a lighter configuration, again simulating the conditions which will apply during space flight.

Also as a precursor to powered flight, VSS Unity flew [today] with her thermal protection system (TPS) fully applied. This ensures that heat loads generated by air friction during rocket-powered boost and supersonic re-entry cause no damage to the vehicle. It's a good look though, with the upper surfaces of the previously white feather flaps now covered in a protective silvered film.

Congratulations to Forger and Sooch, as well as VMS Eve crew, CJ Sturckow, Kelly Latimer and Richard Starke, for a well-executed flight, supported of course by the Virgin Galactic and The Spaceship Company teams on the ground.

Source: Virgin Galactic

ROCKET SCIENCE
Blue Origin tests rocket engine as US seeks to replace Russian RD-180
Washington DC (Sputnik) Jan 11, 2018
The new engine has been in development for seven years already. The US space program currently relies on the RD-180 engine to propel the Atlas V rocket, the only American vehicle capable of sending heavy payloads into orbit. American aerospace company Blue Origin has released video footage showing a recent test of its Blue Engine 4 (BE-4) next-generation rocket engine, which is planned to ... read more

Related Links
Virgin Galactic
Rocket Science News at Space-Travel.Com


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