World's First Hypersonic Hydrocarbon-Fueled Scramjet Closer To First Flight | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-12.04.23

Airborne-NextGen-12.05.23

Airborne-Unlimited-11.29.23 Airborne-Affordable Flyers-11.30.23

Airborne-Unlimited-12.01.23

Thu, Sep 25, 2008

World's First Hypersonic Hydrocarbon-Fueled Scramjet Closer To First Flight

Pratt & Whitney Rocketdyne Says Recent Ground Tests Simulated Mach 5 Conditions

Pratt & Whitney Rocketdyne says it is a step closer to flight testing the world's first hypersonic hydrocarbon-fueled and -cooled scramjet engine. The X-51A Scramjet Engine Demonstrator-WaveRider (SED-WR) successfully demonstrated key flight clearance objectives in recent ground tests simulating Mach 5 flight conditions.

The X-51A SED-WR program is a collaborative effort of Pratt & Whitney Rocketdyne, the US Air Force Research Laboratory, the Defense Advanced Research Projects Agency (DARPA), NASA and The Boeing Company to demonstrate extended-duration hypersonic flight capability. Ground tests are being conducted at NASA Langley Research Center's 8-foot High Temperature Tunnel in Hampton, VA.

"The exceptional operation of the SJX61-2 flight clearance engine and subsystems allows us to move forward to flight with confidence," said Curtis Berger, hypersonics programs director, Pratt & Whitney Rocketdyne. "Engine performance has met or exceeded our predictions throughout the test series."

"We're extremely pleased with SJX61-2 test results to date," said Charlie Brink, X-51 program manager, Air Force Research Laboratory. "This engine test is the culmination of several years of hard work to mature the X-51's flight propulsion system and from what we've seen so far -- the system is pretty much ready to go. We have a few items that we're fine-tuning to optimize for flight but, for the most part, the engine is operating just the way we want it to."

The X-51 Flight Test Program plans to demonstrate the operation of a scramjet engine within the Mach 4.5 to 6.0-plus range during four flight tests beginning in 2009. The program will set the foundation for several hypersonic applications, including access to space, reconnaissance-strike and global reach.

The SJX61-2 duplicates the flight configuration propulsion design, including a Full Authority Digital Engine Control (FADEC), flight fuel pump and ethylene start system to orchestrate the closed-loop thermal management and combustion systems that use JP-7 fuel.

Ground tests of the SJX61-2 and predecessor engine SJX61-1 have verified thermal and structural capability of the propulsion system in addition to validating the engine's start system, performance and operability across the X-51 flight envelope.

The SJX61-2 is built on Pratt & Whitney Rocketdyne's hypersonic propulsion development work during the Hydrocarbon Scramjet Engine Technology (HySET) Program, under funding from the US Air Force Research Laboratory. The engine's control system shares technology derived from Pratt & Whitney's extensive experience in military engine electronic controls and the company's F119 turbofan powering the US Air Force's F-22 Raptor.

FMI: www.pratt-whitney.com/

Advertisement

More News

ANN's Daily Aero-Term (12.01.23): Landing Area

Landing Area Any locality either on land, water, or structures, including airports/heliports and intermediate landing fields, which is used, or intended to be used, for the landing>[...]

Aero-News: Quote of the Day (12.01.23)

“This successful demonstration of a fully autonomous flight from takeoff to landing is a great step towards the reduced pilot workload and simplified HMI that the Airbus Urba>[...]

Classic Aero-TV: Falling for Para-PhernaliaÂ’s Softie Emergency Parachutes

From 2023 (YouTube Version):The Best Option for Pilots’ Worst Days Since its 1979 founding, Para-Phernalia, Inc. has designed and manufactured the Softie line of pilot emerge>[...]

ANN FAQ: Contributing To Aero-TV

How To Get A Story On Aero-TV News/Feature Programming How do I submit a story idea or lead to Aero-TV? If you would like to submit a story idea or lead, please contact Jim Campbel>[...]

Aero-News: Quote of the Day (12.02.23)

“I’m sad we’ve lost trail blazer Dr. Mary Cleave, shuttle astronaut, veteran of two spaceflights, and first woman to lead the Science Mission Directorate as assoc>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2023 Web Development & Design by Pauli Systems, LC