Scaled Composites flies experimental plane for mystery customer

Scaled Composites earlier this week completed the first maiden flight of a new experimental plane, the Model 401, for an unnamed customer.

Details of the first flight are sketchy, though Scaled posted a video on Facebook showing the takeoff of Vehicle Number 1. The Model 401 prototypes have an identical outer design with a 38-ft (11.6 m) wingspan and identical performance characteristics. Lightweight construction allows for an empty weight of 4,000 lb (1,814 kg) and a takeoff weight of 8,000 lb (3,628 kg).

The Model 401 uses a single Pratt & Whitney JTD-15D-5D engine punching 3,045 lb of thrust. This provides for a speed of Mach 0.6 (456 mph, 735 km/h) and a service ceiling of 30,000 ft (10,000 m) with a flight endurance of three hours.

Two of these have been built, so far. The picture of the plane at the link suggests it is stealth designed so that radar will have trouble detecting it. The specifications above suggest to me that it is possibly a military training plane. I would welcome the speculations of my many aviation readers

Brian Binnie, the man who flew SpaceShipOne for Scaled Composites, has left that company for competitor XCOR

Brian Binnie, the man who flew SpaceShipOne for Scaled Composites, has left that company for competitor XCOR.

It might simply be the man got a promotion, but it also might be that he knows the problems SpaceShipTwo is having and sees his chances of flying there going down. His willingness to work for XCOR instead could also be looked at as a kind of endorsement of that company’s chances of success.

Scaled Composites did an engine test today in Mojave of an alternative engine for SpaceShipTwo.

The competition heats up: Scaled Composites did an engine test today in Mojave of an alternative engine for SpaceShipTwo.

In this case, the company is even competing with itself, in that its first engine design is now in competition with another engine design. Considering the rumors about problems with that first design, I suspect the new design is probably winning.

SpaceShipTwo successfully completed its third powered test flight today.

The competition heats up: SpaceShipTwo successfully completed its third powered test flight today.

On release, SS2’s rocket motor was ignited, powering the spaceship to a planned altitude of 71,000 ft. – SS2’s highest altitude to date – and a maximum speed of Mach 1.4. SS2’s unique feather re-entry system was also tested during today’s flight. Two important SS2 systems, the RCS [reaction control system] and thermal protection coating, were tested during today’s flight in preparation for upcoming full space flights. The spaceship’s RCS will allow its pilots to maneuver the vehicle in space, permitting an optimal viewing experience for those on board and aiding the positioning process for spacecraft re-entry. The new reflective protection coating on SS2’s inner tail boom surfaces is being evaluated to help maintain vehicle skin temperatures while the rocket motor is firing.

With its most recent glide test on Saturday it appears SpaceShipTwo has successfully fulfilled its glide engineering goals.

The competition heats up: With its most recent glide test on Saturday it appears SpaceShipTwo has successfully fulfilled its glide engineering goals. Hat tip Clark Lindsay at NewSpace Watch. To quote their flight summary:

With this latest round of six flights we have cleared the full glide-flight envelope for airspeed, angle-of-attack, CG, and structural loads!

The Stratolaunch system has entered system design review.

The competition heats up: The privately-built Stratolaunch system has entered system design review.

The key quote from this article is this:

Scaled Composites, which is building the aircraft, has purchased two ex-United Boeing 747-400s, and is in the process of dismantling them. Stratolaunch will use the engines, hydraulics system and several other major components to build its own aircraft. The remaining fuselage and wing shells will be scrapped. SpaceX is building the rocket, which will launch approximately 13,000lb into orbit. “This is really going after the Delta II market,” says Steve Cook, Dynetics chief technologist. The group eventually hopes to qualify the system for human spaceflight and begin launched manned spacecraft. [emphasis mine]

Stratolaunch is not being built for NASA. It is aimed at the commercial market instead, with the intention of providing a cheaper alternative for getting large payloads into orbit.

SpaceShipTwo to resume flight tests in June after a nine month hiatus.

SpaceShipTwo to resume flight tests in June after a nine month hiatus.

The long pause in flight tests, as well as the apparent delays in flying the ship with its rocket engine, suggest that there have been engineering issues with the ship and engine that Scaled Composites hasn’t revealed. Hopefully the resumption of testing is an indication that these issues have been overcome.

Rutan, Allen, Musk, Griffin team up to develop an air-launch rocket system to fire hardware and humans into orbit.

Superstars of space: Rutan, Allen, Musk, and Griffin have teamed up to develop an air-launch rocket system to fire hardware and humans into orbit.

Their concept calls for Rutan, a noted aircraft designer, to create a carrier jet with a 385-foot wingspan and six engines to ferry a liquid-fueled, 120-foot-long rocket built by SpaceX and outfitted with five main engines to altitude where the winged booster will be released for launch into orbit.

Test flights of SpaceShipTwo resume

After a summer break, the flight tests of SpaceShipTwo have resumed. Thursday’s test appeared to a bit more exciting that previous flights:

Test card called for releasing the Spaceship from WhiteKnightTwo and immediately entering a rapid descent. Upon release, the Spaceship experienced a downward pitch rate that caused a stall of the tails. The crew followed procedure, selecting the feather mode to revert to a benign condition. The crew then defeathered and had a nominal return to base. Great flying by the team and good demo of feather system.

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