Ursa Major announces new engine to replace unavailable Russian-made engines
by Staff Writers
Denver CO (SPX) Jun 02, 2022
Ursa Major, America's only privately funded company that focuses solely on rocket propulsion, has introduced the latest in its line of engines. Arroway is a 200,000-pound thrust liquid oxygen and methane staged combustion engine that will serve markets including current U.S. national security missions, commercial satellite launches, orbital space stations, and future missions not yet conceived. The reusable Arroway engine is available for order now, slated for initial hot-fire testing in 2023, and delivery in 2025.
Notably, Arroway engines will be one of very few commercially available engines that, when clustered together, can displace the Russian-made RD-180 and RD-181, which are no longer available to U.S. launch companies.
"Arroway is America's engine of the future," said Joe Laurienti, founder and CEO of Ursa Major. "Medium and heavy launch capacity is what U.S. launchers desperately need right now, and because Ursa Major focuses solely on propulsion, we're in a unique position to deliver high-performing, reliable, and affordable engines to meet the increasing market demand, just like we are doing with 'Hadley' and 'Ripley'."
Arroway uses a fuel-rich staged combustion architecture with liquid oxygen and methane propellants. Ursa Major designed the components and their arrangement so that most of the engine can be 3D printed. This approach allows for rapid iteration during the development process as well as efficient scaling of production to meet market demand.
Advantages of Liquid Methane Fuel
+ Cleaner-burning, more efficient, and lower cost than kerosene
+ Offers flexible architecture options to optimize for reusability
+ Increasing market adoption in the launch industry
Advantages of Fuel-Rich Staged Combustion Architecture
+ High performance on specific impulse and thrust-to-weight ratio
+ Suitable for high reliability in mass production, long reusable life, and multiple applications
+ Leverages Ursa Major's experience in closed-cycle technology and provides extensibility to future propellant derivatives
Ursa Major's other engines include "Hadley," a 5,000-pound thrust, oxygen-rich staged combustion engine, and the 50,000-pound thrust "Ripley" engine. Hadley was the first American-made oxygen-rich staged combustion engine to be hot fire tested.
"Arroway is the rocket engine that the industry needs, and Ursa Major is the right company to build it," said Jeff Thornburg, former SpaceX propulsion executive and Ursa Major advisor.
"Launch organizations should consider whether they have the in-house experience, expertise, time, money, test facilities, and organizational fortitude to build their own engines. Ursa Major has demonstrated all of that, and the result is a more rapid and robust product to market. The growing space industry is just starting to learn how difficult propulsion development can be and how long it really takes to qualify hardware in-house, which presents an incredible opportunity for Arroway to serve the industry."
No Need to Build In-House
The Ursa Major propulsion engineering team has more than 1,000 years of propulsion development experience and thousands of successful flights. It includes world-leading experts in combustors, engine cycles, and turbomachinery from the top American launch companies and engine development programs in the U.S. The company has built and tested more than 50 staged-combustion rocket engines to date and will deliver 24 of them by year's end.
Ursa Major designs, tests, and manufactures its engines from its state-of-the-art facility in Berthoud, Colorado, using market-leading technology in analysis and simulation, 3D printing, and proprietary alloys. To date, Ursa Major engines have accumulated 36,000 seconds of run-time, far more than a typical engine is tested prior to first flight.
Connect with Ursa Major on LinkedIn, Twitter, Instagram, and Facebook.
Upper Stage Propulsion System for future Artemis mission reaches major milestone
Decatur AL (SPX) May 26, 2022
While the Artemis I team prepares for its upcoming mission, NASA and contractor teams are already building rockets to support future Artemis Moon missions. In United Launch Alliance's (ULA) factory in Decatur, Alabama, major components have been completed for the Artemis III interim cryogenic propulsion stage (ICPS) that will provide the power to send astronauts to the Moon. The ICPS, which is built by ULA under a collaborative partnership with Boeing, provides in-space propulsion for the Orion sp ... read more
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.