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Built a low speed Ram Jet engine

Printed From: Tippmann Paintball
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Forum Name: Thoughts and Opinions
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URL: http://www.tippmannsports.com/forum/wwf77a/forum_posts.asp?TID=169666
Printed Date: 05 February 2026 at 6:13am
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Topic: Built a low speed Ram Jet engine
Posted By: WGP guy2
Subject: Built a low speed Ram Jet engine
Date Posted: 23 August 2007 at 8:35pm
So, decided to build another jet engine.  This one is a low speed ramjet.  Its powered off of propane, has an estimated 40 pounds of thrust with propane.  Can also be powered of Jet-A and with that the thrust should be around 100 pounds.

I've only done two test runs so far.  A part on the inside used to compress the exhaust gasses, and then expand them was crushed and sent flying out the back about 30 feet.  There isn't a nozzle on it yet so peak performance hasn't been reached yet.  This is running at 50% throttle.

Front end, compressor cone.  EDIT:  duct tape is because I had the wrong size fitting.  Part doesn't get too hot so no worries.


Lit, the red hot piece is the fuel injector.


Exhaust


Lit





Replies:
Posted By: Evil Elvis
Date Posted: 23 August 2007 at 8:37pm
Rig it to your Car.


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Posted By: evillepaintball
Date Posted: 23 August 2007 at 8:39pm
rig it to your skateboard

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Posted By: WGP guy2
Date Posted: 23 August 2007 at 8:40pm
It has to have air moving into it at speeds no less than 150 mph to work.  I don't think I'll be getting my skateboard or car that fast.  Of course I could make a gigantic compressor, but that would look stupid.


Posted By: BooksAndLeaves
Date Posted: 23 August 2007 at 8:42pm
put your head in it

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Posted By: Ben Dover1
Date Posted: 23 August 2007 at 8:43pm
we get it, you fly planes.

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Posted By: Dye Playa
Date Posted: 23 August 2007 at 8:44pm
Originally posted by Ben Dover1 Ben Dover1 wrote:

we get it, you fly planes.

we get it, your an idiot.


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Posted By: Ben Dover1
Date Posted: 23 August 2007 at 8:45pm
Originally posted by Dye Playa Dye Playa wrote:

Originally posted by Ben Dover1 Ben Dover1 wrote:

we get it, you fly planes.

we get it, your an idiot.
we get it, you have no life.

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Posted By: oreomann33
Date Posted: 23 August 2007 at 8:46pm
Originally posted by Dye Playa Dye Playa wrote:

Originally posted by Ben Dover1 Ben Dover1 wrote:

we get it, you fly planes.

we get it, your an idiot.

you're*


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Posted By: Evil Elvis
Date Posted: 23 August 2007 at 8:49pm


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Posted By: Ben Dover1
Date Posted: 23 August 2007 at 8:50pm
^ isnt that illegal

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Posted By: Da Hui
Date Posted: 23 August 2007 at 8:51pm
Off topic, but WPG what color did you end up painting your car man?

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Posted By: Dye Playa
Date Posted: 23 August 2007 at 8:52pm
Originally posted by Evil Elvis Evil Elvis wrote:


that thing is nuts.


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Posted By: pb125
Date Posted: 23 August 2007 at 9:17pm
Go out and do something. Maybe hit up a party with friends.

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Posted By: WGP guy2
Date Posted: 23 August 2007 at 9:21pm
Originally posted by Da Hui Da Hui wrote:

Off topic, but WPG what color did you end up painting your car man?


I didn't.  It was going to be about $2000, which is more than I spent on the car itself.  I'll be getting a new vehicle (hopefully a truck) by the end of this year, so figured it wasn't worth it.



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