On Sat, 06 Dec 2003 00:41:30 GMT, Ian Stirling
wrote:

In sci.space.tech pervect wrote:
A week or so ago I saw a rather neat Junkyard Wars episode on
pulse-jets. I'm also rather intrigued that it was felt to be a safe
enough gadget to build for the TV show.

It was an amazingly simple contraption, a jet with no moving parts. I
was wondering where I could find out more about the history of these
devices, and perhaps some information as to why they are apparently
outdated and no longer in use. I believe they were used in the V2
rockets in WWII (?).

V1 "doodlebug" in WWII.
The V2 was a rocket.
Do a search for
"bruce simpson" pulsejet
(bruce was the team-leader in that episode, and has a website on pulsejets.)

Well talk of the devil -- here I am (Bruce Simpson that is :-)

Yep, I was the "expert" in for the pulsejet team and you can find out
probabl;y more than you'd like to know by visting my website at
http://aardvark.co.nz/pjet/

There's even some video of a 200lbs-thrust valveless pulsejet that is
unique insomuch as it starts all by itself without the need for any
forced air to get it going.

There's also information on my X-Jet project which is a very
high-performance pulsejet that produces TSFC figures of around
1.0-1.1, that's equivalent to a pure turbojet. It also has no moving
parts.

If anyone has any specific questions then fire away and I'll do my
best to answer them.

--
you can contact me via http://aardvark.co.nz/contact/