Good News, Everyone! SSTO is Back!

An artist’s rendering of Radian Aerospace’s fully reusable horizontal takeoff and landing, single-stage to orbit spaceplane flying over Earth. (Credit: Radian Aerospace)
  • Radian Aerospace emerges from stealth, announces seed funding led by Fine Structure Ventures
  • Development of the world’s first fully reusable horizontal takeoff and landing, single-stage to orbit spaceplane takes critical step forward with investment

RENTON, Wash., Jan. 19, 2022 (Radian Aerospace PR) — Radian Aerospace (Radian), the developers of the world’s first fully reusable horizontal takeoff and landing, single-stage to orbit spaceplane, announced today that the company recently closed $27.5 million in seed funding. The recent round was led by Fine Structure Ventures, a venture capital fund affiliated with FMR LLC, the parent company of Fidelity Investments, with additional investment from EXORThe Venture CollectiveHelios CapitalSpaceFundGaingelsThe Private Shares FundExplorer 1 FundType One Ventures as well as others.

(more…)

CNES Searches for the Rocket Propellant of the Future

Ariane Ultimate (Credits: CNES)

PARIS (CNES PR) — With a view to preparing for the future, the development of new dense and energetic propellants (HEDM) is one of the avenues to be explored to optimize the performance of launchers.

(more…)

Move Over, Jet Engines! Here Comes SABRE!


The Biggest Breakthrough in Propulsion Since the Jet Engine
Reaction Engines Press Release
November 28, 2012

Reaction Engines Ltd. can announce today the biggest breakthrough in aerospace propulsion technology since the invention of the jet engine. Critical tests have been successfully completed on the key technology for SABRE, an engine which will enable aircraft to reach the opposite side of the world in under 4 hours, or to fly directly into orbit and return in a single stage, taking off and landing on a runway.

(more…)











Reaction Engines Says Tech for Sabre Engine in Place


Reaction Engines announced today that tests have verified that the technology is in place to build its Sabre engine, which lies at the heart of its reusable, single-stage-to-orbit Skylon spacecraft.

The news brings the promise of not only routine, affordable access to space but also point-to-point travel at Mach 5 and major improvements in fuel efficiency for existing airliners. The announcement featured a major endorsement of the technology by ESA, has has worked with the British company to evaluate the results of the tests, Reuters reports.

“ESA are satisfied that the tests demonstrate the technology required for the Sabre engine development,” the agency’s head of propulsion engineering Mark Ford told a news conference.

“One of the major obstacles to a re-usable vehicle has been removed,” he said. “The gateway is now open to move beyond the jet age.”

(more…)











What Makes Skylon a Feasible SSTO?

British Space Plane Concept Gets Boost
Space.com

The Skylon spaceplane would boast a unique SABRE hybrid engine which can act as both an air-breathing jet engine and a rocket engine in space. This gives it a potential advantage over other space plane designs, according to Mark Hempsell, director for Future Programs at Reaction Engines.

(more…)











STTOs: The Answer to a Thousand Dreams

What Ever Happened To Reusable Launch Vehicles
Space Daily

The simple truth is that we do not know how to make reusables and we cannot make a good business case for them. Many have tried, but all have failed. Most recently NASA spent over one billion dollars trying to build a scaled down technology demonstrator, the X-33.
(more…)