From the pages of   jetZILLA TM - June 16, 2003 Special Edition -

DynaJet static run with pressure gauge tube in exhaust pipe - photo (c) 2003 Cottrill Cyclodyne Corp.
A small pulsejet going full roar 20 seconds after cold startup. 
The thin, bent stainless steel tube inserted into the tailpipe 
[secured in vise at left] is part of a gas velocity measurement 
experiment. The engine shown is a standard DynaJet running white 
gasoline as fuel. This is a fairly small engine, only 21 inches 
[535mm] long x 2.5 inches [64mm] maximum diameter and weighing 
1 lb [approx. 0.5 kg], but many homebuilt engines are much larger.
Some types of pulsejets can be homebuilt very simply and 
inexpensively, with minimal tooling and virtually no machining!
Photo Copyright 2003 Cottrill Cyclodyne Corp.

Page updated: 16 June 2003

Copyright 2003 Cottrill Cyclodyne Corporation
- All rights reserved -