A LIMITED  EDITION Series of Full Color Mini-Posters Commemorating

-  2004  -
INTERNATIONAL YEAR OF
THE VALVELESS PULSEJET


Witness the 21st Century jet motors that
laugh at engines with moving parts!

See the red-hot pipes and blue-hot flames
of full-thrust continuous running
at over 200 explosions per second!


NOW is your chance to own a memento of the year
that homebuilt valveless pulsejets came of age
... but this
LIMITED EDITION series will sell out fast!



Digital mini-poster: Focused Wave Valveless Pulsejet Closeup - image Copyright 2004 Cottrill Cyclodyne Corporation
In honor of the year when just about everybody
got their homebuilt valveless jets to run!
(Go directly to posters)



Witness the blue fire and red hot steel
of history's most nearly impossible jet propulsion engines
  by Larry Cottrill, Editor, jetZILLA Online Magazine

Poster 1 in the Series - dramatic image of Focused Wave Valveless Pulsejet Engine, going 'full grease' The year that was ...

For the past three years or so, there has been a growing interest for those of us who share Kenneth Moller's pulse-jets.com forums in the design of those most elusive of mechanical beasts, the valveless pulsejets. Before 2004, a lot of history had been cited, a lot of theory had been put forth, and even a fair amount of steel had been butchered - but there was precious little roaring, and even less propulsion thrust, to show for it. By the end of 2003, there were some promising signs that real propulsion engines might actually appear; but, we had seen signs before, only to have high hopes cruelly dashed.

The engines that roared ...

However, beginning early in the year with the big prototypes of Australia's Ross Gordon and California's Bill Hinote and the uniquely innovative small-scale 'Kazoo' creations of Mike Everman (another Californian), we began to get our arms around the monster. By summer, I had worked out my first "Five Dollar Pulsejet", a valveless design with parts made of nothing but electrical conduit (independently built and run by Connecticut high school student Steve Bukowsky). Mike went on to develop a variant called 'Kazooenstein', and I worked out the improved Elektra II (though it obstinately refused to run for a few months). Sharing of lessons learned was free and uninhibited, with numerous successes and failures spurring us on. I eventually came up with the Focused Wave Valveless, code-named 'Short Lady', and this time Steve put together the original prototype for me - and got it to start and run on his first try! [That's his engine in the poster, immediately above.]

This was the year that everything came together. Mike showed us how a simple, working 'weldless' design could be built simply by smashing steel pipe! Bill Hinote revealed some 'secret' proportions he had noticed on several valveless engines of historical interest (which guided my design of the 'Short Lady'). On the theory side, we had tremendous help and encouragement from experts like Graham Williams of the UK and Bruno Ogorelec of Croatia. Several new design hypotheses were put forward and experimentally tested. And for the first time most of us could remember, a lot of it actually worked!

The posters ...

As a member in good standing of the forums, and as editor of jetZILLA Online Magazine, I decided that we needed to do something special to celebrate - to announce to the world that this was the year that people of differing interests, skills and nationalities had produced innovative valveless pulsejet designs that are easy to build and really run! Since we all take pictures of our creations in action, I figured, what better way than to create a series of colorful mini-posters to commemorate our 'International Year of the Valveless Pulsejet'? I offered to produce the posters and contribute $1.00 US to the pulse-jets.com Website from the proceeds of every poster sold.

What you're getting:

Posters are printed on heavy weight, bright white, acid-free paper, 11 x 17 inches [about 28 x 43 cm] outside dimensions. Some are 'portrait' format [vertical] and some are 'landscape' format [horizontal]. They are shipped carefully rolled in an ample, rugged mailing tube. I will only accept up to five posters in a single order, and will only ship a maximum of five posters in a single tube! If you want more, you'll need a second order. All US shipments are Priority Mail with Confirmation [i.e. a tracking number]. [Foreign shipments are by the most economical means available with proof of mailing, and promptness of delivery cannot be guaranteed.] Shipment will be within two business days of placing your order. All payments are through PayPal, and if you don't have a PayPal membership, you can choose from several common credit cards when you order.

NOTE that these are processed from digital images provided by the engine creators - you WILL see pixels visible on close inspection. The posters are guaranteed to look beautiful when seen from a normal viewing distance of about 25 inches [approx. 70 cm]. Sorry, larger prints are not available.

Posters are signed by Larry Cottrill and hand-numbered on the white border, and are strictly limited editions - there will be ABSOLUTELY NO MORE THAN 1,000 PRINTED of each poster offered!

Now, choose from these full-color  11x17-inch 
   digital mini-posters  to tastefully adorn your 
   home, office or workshop ...
Official PayPal Seal I'm PayPal Verified
Poster I:
    "Actually, I am a rocket scientist." [Steve
      Bukowsky's Focused Wave Engine prototype]
Digital mini-poster (portrait):   $ 7.00US
FWE-1: 11 x 17 inches [28 x 43 cm, approx.]
(add $4.00US S&H - add'l copies S&H FREE!)
Digital mini-poster: Actually, I Am a Rocket Scientist [Steve Bukowsky's Focused Wave Engine prototype] - image Copyright 2004 Cottrill Cyclodyne Corporation
Poster II:
    Bill Hinote's mighty Kentfield engine
Digital mini-poster (landscape):   $ 7.00US
KEN-1: 17 x 11 inches [43 x 28 cm, approx.]
(add $4.00US S&H - add'l copies S&H FREE!)
Digital mini-poster: Bill Hinote's mighty Kentfield engine - image Copyright 2004 Cottrill Cyclodyne Corporation
Poster III:
    Elektra I & Elektra II "Five Dollar Pulsejets"
Digital mini-poster (landscape):   $ 7.00US
ELK-1: 17 x 11 inches [43 x 28 cm, approx.]
(add $4.00US S&H - add'l copies S&H FREE!)
Digital mini-poster: Elektra I & Elektra II 'Five Dollar Pulsejets' - image Copyright 2004 Cottrill Cyclodyne Corporation
Poster IV:
    Marten Klein's K-PT 04 & K-PT 05 engines
Digital mini-poster (landscape):   $ 7.00US
KPT-1: 17 x 11 inches [43 x 28 cm, approx.]
(add $4.00US S&H - add'l copies S&H FREE!)
Digital mini-poster: Marten Klein's K-PT 04 & K-PT 05 engines - image Copyright 2004 Cottrill Cyclodyne Corporation
Poster V:
    "Let's make some NOISE!" [Larry Cottrill &
      his Elektra I "Five Dollar Pulsejet" prototype]
Digital mini-poster (portrait):   $ 7.00US
NOISE-1: 11 x 17 inches [28 x 43 cm, approx.]
(add $4.00US S&H - add'l copies S&H FREE!)
Digital mini-poster: Let's make some NOISE! [Larry Cottrill & his Elektra I valveless prototype] - image Copyright 2004 Cottrill Cyclodyne Corporation
Poster VI:
    Focused Wave Valveless Pulsejet Closeup
Digital mini-poster (portrait):   $ 7.00US
FWE-2: 17 x 11 inches [43 x 28 cm, approx.]
(add $4.00US S&H - add'l copies S&H FREE!)
Digital mini-poster: Focused Wave Valveless Pulsejet Closeup - image Copyright 2004 Cottrill Cyclodyne Corporation
 
   


ZERO MOVING PARTS - and she just keeps running,
even after you pull the ignition wires!

Larry Cottrill and his 'Short Lady' Focused Wave Valveless Pulsejet engine - photo Copyright 2004 Larry Cottrill
Larry Cottrill and his 'Short Lady' Focused Wave Valveless Pulsejet


Brought to you by
from the Editor of jetZILLA - the Online Magazine of Amateur Jet Propulsion from the Editor of jetZILLA - the Online Magazine of Amateur Jet Propulsion from the Editor of jetZILLA - the Online Magazine of Amateur Jet Propulsion

Page updated: 15 February 2005

Copyright 2005 Cottrill Cyclodyne Corporation
Mingo, Iowa USA
- All rights reserved -