Aurora & Beyond, page 2
Pages: <<  1    2  >>
ATS Members have flagged this thread 2 times


reply posted on 10-2-2010 @ 08:11 PM by flyingfish
This may be old news but I'm going to post anyway.Did a quick search looks like no one posted this info yet
Pratt & Whitney Rocketdyne Successfully Tests Dual-Mode Ramjet Engine at Mach 4 Flight Conditions

WEST PALM BEACH, Fla. - May 5, 2009

Pratt & Whitney Rocketdyne's PWR-9221FJ dual-mode ramjet engine successfully completed its first ground test at Mach 4 flight conditions at Arnold Engineering Development Center, Tullahoma, Tenn. A dual-mode ramjet engine is a key technology for developing reusable hypersonic vehicles. Pratt & Whitney Rocketdyne is a United Technologies Corp. (NYSE:UTX) company.

"Successful demonstration of the dual-mode ramjet engine integrated with a variable geometry inlet and exhaust nozzle sets the stage for future turbine-based, combined-cycle propulsion and flight demonstration opportunities," said Cal DeFreese, program manager, Falcon Combined-Cycle Engine Technology (FaCET), Pratt & Whitney Rocketdyne. "Current testing is focused on validating the operability and robustness of the dual-mode ramjet design during simulated transitions from turbojet to ramjet propulsion modes."

A dual-mode ramjet engine is designed to operate as both a ramjet at moderate supersonic speeds (up to Mach 5) and a scramjet at hypersonic speeds (greater than Mach 5). This broad range of operational capability is required for turbine-based, combined-cycle propulsion that would enable a vehicle to take off from and land on a conventional runway, and travel at speeds up to Mach 6.

The tests are being conducted as part of the Defense Advanced Research Projects Agency's FaCET program; Pratt & Whitney Rocketdyne is a principal contractor to Lockheed Martin on the program. Additional tests over the next two months are designed to check the integrated system performance from Mach 3 to Mach 6 flight conditions.
www.deagel.com...

[edit on 10-2-2010 by flyingfish]


reply posted on 10-2-2010 @ 08:30 PM by flyingfish
Computer animation of Lockheed Martin Skunk Works' hypersonic cruise vehicle for DARPA Falcon program.
DARPA computer-animated video of Lockheed Martin Skunk Work's Falcon HTV-3X hypersonic test vehicle.


HTV-2 hasn't been cancelled, it's undergone some interesting changes. I may have some more information soon, but this should be of interest:
www.fbo.gov...


reply posted on 10-2-2010 @ 10:49 PM by flyingfish
reply to post by intelgurl


Nice thread thanks for the link.
If this info is posted on another thread I apologize, just did a quick search.
Looks like most of this has been discussed. There does not seem to be much interest so I will let this thread die.


[edit on 10-2-2010 by flyingfish]
Pages: <<  1    2  >>    ^^TOP^^



Amazing video of 747 lifting in place in extreme wind conditions
  Posted 1 days ago with 11 member flags
Eerie Second World War RAF fighter plane discovered in the Sahara
  Posted 16 days ago with 8 member flags
Stealth chopper based in Nevada
  Posted 16 days ago with 4 member flags
HIFiRE Scramjet Research Flight Will Advance Hypersonic Technology
  Posted 14 days ago with 2 member flags