Welcome to the Water Rocket Forum, sponsored by The Water Rocket Achievement World Record Association.

The largest, most sophisticated and ground breaking group supporting you, the serious water rocket flyer! Whether you are a beginner or an expert, the WRA2 has something for everyone.

A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel (the engine of the rocket) is constructed from thin plastic or other non metallic materials (usually a used plastic soft drink bottle) weighing 1,500 grams or less. The water is forced out by compressed air. It is an example of Newton's third law of motion.

7,000 MPH SCRAMJet!

Discuss non-rocket topics, TV, Movies or even general science here.
Post Reply
User avatar
Spaceman Spiff
WRA2 Member
WRA2 Member
Posts: 681
Joined: Sat Feb 24, 2007 11:06 am

7,000 MPH SCRAMJet!

Post by Spaceman Spiff » Wed Apr 29, 2009 3:15 pm



Spaceman Spiff
"What goes up, must come down"

User avatar
U.S. Water Rockets1
WRA2 Member
WRA2 Member
Posts: 1771
Joined: Sat Feb 03, 2007 3:24 pm

Re: 7,000 MPH SCRAMJet!

Post by U.S. Water Rockets1 » Sat May 02, 2009 10:58 pm

Spaceman Spiff wrote:X-43A goes 7000MPH!!!
Wow, that's FAST!


Team U.S. Water Rockets
Visit USWaterRockets.com
Visit our Blog
Tune in to our YouTube Channel
Visit our Facebook page
Visit our Twitter Page
Opportunity is missed by most people because it is dressed in overalls and looks like work. --Thomas Edison

User avatar
Chonchielopez
Advanced Member
Advanced Member
Posts: 16
Joined: Sat Jul 25, 2009 1:49 am

Re: 7,000 MPH SCRAMJet!

Post by Chonchielopez » Sat Aug 01, 2009 4:27 am

Cool. 8)


Launchers are hard to make

User avatar
RaZias
WRA2 Member
WRA2 Member
Posts: 751
Joined: Mon Jul 14, 2008 3:16 pm

Re: 7,000 MPH SCRAMJet!

Post by RaZias » Sat Aug 01, 2009 6:02 am

The SCRAMJet has it issues, the new generation will be a sHcramjet

In a liquid-fuel rocket there is a mix of H2 with O2, so you need 2 tanks (one for each liquid).

But why not collect the O2 from the atmosphere and mix it with the H2 from a tank ?

That´s the origin of the SCRAM Jet...but it´s so complicated that they even call it the SCAM JET...40 years of test and still has problems.

Here it´s some pictures of a sHcramjet:
shcramjet.jpg
rbcc.jpg
You do not have the required permissions to view the files attached to this post.


Research and Development is the soul of WR

User avatar
U.S. Water Rockets1
WRA2 Member
WRA2 Member
Posts: 1771
Joined: Sat Feb 03, 2007 3:24 pm

Re: 7,000 MPH SCRAMJet!

Post by U.S. Water Rockets1 » Sat Aug 01, 2009 9:47 pm

Is it not true that more than 40 years ago, the XR-71 Blackbird used a form of RamJet technology using a bypass in the engines to reach high mach numbers quite reliably? What problems does the ScramJet have?


Team U.S. Water Rockets
Visit USWaterRockets.com
Visit our Blog
Tune in to our YouTube Channel
Visit our Facebook page
Visit our Twitter Page
Opportunity is missed by most people because it is dressed in overalls and looks like work. --Thomas Edison

User avatar
RaZias
WRA2 Member
WRA2 Member
Posts: 751
Joined: Mon Jul 14, 2008 3:16 pm

Re: 7,000 MPH SCRAMJet!

Post by RaZias » Sun Aug 02, 2009 5:22 am

U.S. Water Rockets1 wrote:Is it not true that more than 40 years ago, the XR-71 Blackbird used a form of RamJet technology using a bypass in the engines to reach high mach numbers quite reliably? What problems does the ScramJet have?
I will post the problems of the scramjet soon. You say that the ramjet technology is reliable...that´s ok but don´t make between Ramjet and Scramjet, these are two very different technologies, and the last one is very new so it´s not reliable yet.


Research and Development is the soul of WR

Post Reply