ramjet plans

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Najm
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re: ramjet plans

Post by Najm » Sat Mar 11, 2006 8:44 am

Ram Jet Engine
The jet engine that almost brought England to her knees during WWII.
Those old enough to remember WWII will remember the German Buzz bombs over England. It wasn't the sound of this weapon growling overhead, but when the growling stopped, that scared everyone to death. Because then it was on it's way down, to explode. It wasn't called a terror weapon for nothing. This plan is for a similar jet engine. It is also a BUILD AT YOUR OWN RISK plan. It is simple to build using hardwood patterns to form sheet aluminum. Most parts are off-the-shelf items. Some light welding is required, but it's mostly bending and forming sheet metals, And, be very careful firing it up, if something is wrong, it will explode!
The buzz bomb was a pulse jet powered vehicle, no ramjet used.
Also pulse jets or ramjets don't explode. It's not a good description of a pulse jet.
I have never heard a ramjet "buzz".A buzz bomb "buzzed" because it had pulse jet mounted on it not a ramjet.

cudabean
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re: ramjet plans

Post by cudabean » Sat Mar 11, 2006 8:28 pm

The Ramgen is an interesting idea. I don't see how it could be revolutionary, however because ramjets are not particularly efficient. Also, you could probably create an engine that has similar characteristics by placing two or more ramjets on an arm and point them in opposite directions much like the jet tipped helicopters from the past and get similar performance yet with less complexity. Or have I missed something?

Marlin

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re: ramjet plans

Post by Zippiot » Sat Mar 11, 2006 10:52 pm

super fuel loss until mach 2.5-2.7 is reached...

but, to be fair to ramjets, show me the fastest ramjet powered vehicle comapred to the fastest turbine vehicle!

also the ramjet tipped helicopters were quite easy to spot with the spinning flame, and made much weird noise, not really good for military use.

great for making a flying saucer hoax though!
Sailing Student- How do I know if my life jacket is tight enough?
Me- Can you breathe?
Sailing Student- Yes
Me- Then its too loose!

Bruno Ogorelec
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Re: ramjet plans

Post by Bruno Ogorelec » Sun Mar 12, 2006 11:29 am

BenN wrote:Does someone know what "Ram Jet" plans is for sale on this site ?

http://metalwebnews.com/poorman/poorman-steam.html

BenN
I would avoid it in a wide circle.

WebPilot
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re: ramjet plans

Post by WebPilot » Sun Mar 12, 2006 7:26 pm

he plan in question was available on the Internet at an earlier time. It was for
powering model boats, etc. I don't know if it is worth $12.00 plus shipping and
handling. It had little to do with what the German scientists were doing in WWII.

The principle is a regenerative heat exchanger, which simply equates to a pressure
jet. Performance figures are unknown to me. I do have a picture of a similar one
going around in a circle, since it was tethered to a rotating pole.

An impressive true russian ro cket / ra m, Bur ya I C M, can be found at
the bottom of an earlier post of mine,

[url=http://www.pulse-jets.com/phpbb2/viewto ... highlight=
Image

Al Belli
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re: ramjet plans

Post by Al Belli » Sun Mar 12, 2006 8:30 pm

Hi,

a design by William T. Decker.

Al Belli
Attachments
PRACTICAL RAM JET DESIGN.doc
(507.5 KiB) Downloaded 948 times

Bruno Ogorelec
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Re: re: ramjet plans

Post by Bruno Ogorelec » Sun Mar 12, 2006 9:37 pm

Al Belli wrote:Hi,

a design by William T. Decker.

Al Belli
Thanks, Al. I was convinced that I had those plans somewhere but can't find them, so your documents is very much appreciated.

WebPilot
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re: ramjet plans

Post by WebPilot » Sun Mar 12, 2006 9:50 pm

Nothing personal Al, but did you forget you already uploaded this on Fri Jun 17, 2005 12:02 pm here?

-fde

PS It's ok, I forget where I put my post-its, sometimes, he he he.
Image

Al Belli
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re: ramjet plans

Post by Al Belli » Sun Mar 12, 2006 9:57 pm

Hi Forrest,

I don't keep a list of my posts, so some duplication may occur.
When you are my age ( 64 ) you may also experience a " brain fart "
on occasion !!! :)

You will note that the new post contains the drawings and figures that were missing in the former post .

Source: http://www.alt-accel.com/arla/decker/ramjet.htm

Al Belli

Mark
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re: ramjet plans

Post by Mark » Sun Sep 03, 2006 9:53 pm

"The recommended material for fabrication of ram jet engine shells would be Type 310, 321, or 347 stainless steel, Typo 347 being the most suitable of the three."
That was interesting to me.
Mark
Presentation is Everything

raminss
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Re: ramjet plans

Post by raminss » Thu Jan 13, 2011 10:33 pm

above link (http://www.alt-accel.com/arla/decker/ramjet.htm ) is down!
can you give me other address?

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