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Dear Mike.
That injector looks nice!
It reminds me of something I saw once for wok cooking.
I have this strange vision of you looking round the workshop "Now what can I use as an injector?"

Regards
Graham.

The Heat Output = Heat input - The Work done. Never mistake Heat for Temperature. Here's an old one - Coming in from a cold day, what would you rather have warm you up, a match or a hot bath? The flame of a match is at a higher temperature. The hot bath will transfer more heat to you.- I'm sure you ...

Dear Mike.
18.6 N/L though not close to the 33N/L of the smaller motor it's still no slouch.
Regards
Graham.

Dear M. The Constraints imposed by this challenge are infuriating. It is a relatively simple matter to increase trust by increasing volume but this is a trade off that offers no improvement to this measure of efficiency. It is of no help seeing other designs that by the alternative measures of effic...

Hmmm nice!
Please see your PM.

Regards
Graham.

Dear Jutte.
Have you considered that your motor may be firing every other cycle? I only know of one other motor type that is said to run like this.
I've followed this motor with great interest.

Graham.

Dear M.
"provocative" Yes but I hope not offensive!

Thank you.
How do S1 and S1 'prime' differ in your report?
I recall that 'QD and RD type ducts' refer to two of your earlier designs is that correct?

Regards
Graham

Dear M. At some stage in this prolonged discussion you mention replacing the Divergent/Convergent section in the middle of the pipe with an ordinary taper. My laziness precludes me from finding your exact words. I know I ran the tests in the early modelling development of this motor but cannot find ...

Eric wrote: Make a restriction in the small diameter liquid fuel line, then have it expand out into a larger diameter fuel line which then gets sent to a preheat coil.
Eric

Dear Eric.
Expand the fuel Gently or Rapidly, similar to how a fridge works, before adding the heat?

Graham.

Dear Eric. Have you tried a concave section to the splash plate? Experiments with subsonic fuel flow and a concave plate pressed all the right buttons for me; very good separation from the cone, a neat small film (or sheet), early break-up and small partial size. You would have thought it would work...

Hi Graham, hope you all got back ok after your break, pity about the weather but i hope you all enjoyed it nonetheless. I've forwarded James's email from the GTBA :-) all the best Nick Thank you all so much for participating and helping on the GTBA stand at Bristol last weekend. For those who were n...

Zoom into the induction. Again, 600fps. No Sound.

Graham.

The Induction pipes. 600FPS. No Sound.

Graham.

Good morning.
This video clip was shot at 600FPS and looks at the tailpipe of the motor when running at full power. No sound. Enjoy!!!

Graham.

What I'm really after is how good a prediction we can make about the correct fueling point. (I realize that there's a lot more to this than meets the eye, because of turbulence effects, mixing path length, etc., etc. of course, but I'm most interested in what we can predict with one-dimensional ana...