• Hi Guest! Forum rules have been updated. All users please read here.

DARPA's RASCAL (Responsive Access, Small Cargo, Affordable Launch) programme

CammNut

CLEARANCE: Secret
Joined
Feb 1, 2007
Messages
296
Reaction score
5
Another one for the "project cancelled" bin - the Mach 4 aircraft Burt Rutan's Scaled Composites was designing for Space Launch under DARPA's RASCAL (Responsive Access, Small Cargo, Affordable Launch) programme. The aircraft was called the MIPCC Powered Vehicle (MPV) because the four F100 engines were to be modified with "mass injection pre-compressor cooling", or MIPCC. This injected water and/or liquid oxygen into the inlet duct to cool the compressor and add massflow, fooling the engine into thinking it was flying at lower altitude in thicker air and maintaining its thrust to higher altitude and Mach number. This was intended to allow the MPV to zoom-climb out of the atmosphere, deploy a rocket-powered upper stage and satellite, and fire its reaction-control motors to turn round and re-enter.

MIPPC was tested on the ground, and worked, but RASCAL proved too "DARPA hard". Space Launch is still trying to get the concept off the ground using a modified F-4 (http://www.spacelaunch.com/products.asp)
 

Attachments

Sundog

CLEARANCE: Top Secret
Senior Member
Joined
Aug 2, 2006
Messages
2,773
Reaction score
225
Wow,
Thanks for the update on RASCAL CammNut. I was wondering what happened to that program. I had no idea the design had changed so much from the version originally shown in Aviation Week.
 

XP67_Moonbat

CLEARANCE: Top Secret
Joined
Jan 16, 2008
Messages
2,158
Reaction score
48
http://www.responsivespace.com/Papers/RS2%5CSESSION%20PAPERS%5CSESSION%208%5CLOPATA%5C8004P.pdf

Here's an AIAA paper on RASCAL

And GA Tech's spin on the matter:
http://www.ssdl.gatech.edu/Papers/Masters/YoungMasters.pdf


Moonbat
 

hesham

CLEARANCE: Above Top Secret
Joined
May 26, 2006
Messages
26,095
Reaction score
3,010
Hi,

http://archive.aviationweek.com/image/spread/20030922/25/2
http://archive.aviationweek.com/image/spread/20030922/26/2
http://archive.aviationweek.com/image/spread/20030922/27/2
 

Attachments

TomS

CLEARANCE: Top Secret
Senior Member
Joined
Apr 16, 2008
Messages
3,893
Reaction score
827
This is RASCAL, which has a thread, here:

http://www.secretprojects.co.uk/forum/index.php/topic,2561.msg123213.html
 

hesham

CLEARANCE: Above Top Secret
Joined
May 26, 2006
Messages
26,095
Reaction score
3,010
TomS said:
This is RASCAL, which has a thread, here:

http://www.secretprojects.co.uk/forum/index.php/topic,2561.msg123213.html
OK,we can merge the topics.
 

sferrin

CLEARANCE: Above Top Secret
Senior Member
Joined
Jun 3, 2011
Messages
13,111
Reaction score
1,170
TomS said:
This is RASCAL, which has a thread, here:

http://www.secretprojects.co.uk/forum/index.php/topic,2561.msg123213.html
I wanted that to succeed so bad. Bet it could have shattered the higher altitude time-to-climb records.
 

Antonio

CLEARANCE: Top Secret
Staff member
Senior Member
Joined
Jan 22, 2006
Messages
3,450
Reaction score
158

XP67_Moonbat

CLEARANCE: Top Secret
Joined
Jan 16, 2008
Messages
2,158
Reaction score
48
Me too, Sferrin. Me too. I wonder if there's still anymore research on MIPCC being done at all.
 
Top