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Michael, hoping to have something pretty cool for this page in 2023! roland2001

Doesn't apply to straight ....the added "curvatures however are "supposed to" mitigate for the flow problems.

You have area and diameter reversed on your spreadsheet

Never would have thought that someone would try this. Hats off to the creative mind! To consider for a moment that these U-shaped babies would be used for rotary aircraft "tipjets," well to quote Vizzini ," is inconceivable!" Looked through this entire section and couldn't see that anyone had posted...

https://youtu.be/m65aLgQrwXA Test table started to move with the thrust augmenter attached Roland2001

re the theory about the changes to the intake: 1) first, re the lengths....the fundamental wave created by the 2nd stage intake tube (the longest) is reflected back from the far wall of the combustion chamber "CC" and is the inverse (opposite) of the incoming wave. This situation sets up the appropr...

Gluefixes.jpg Without going into allot of theory these are the charges I recommend: 1) Diameters of the "intake" tubes: starting with the second tube/intake: increase the INSIDE diameter to 3.5625" (3 and 9/16".) Decrease the minimum diameter INSIDE to 4.09375" (4 and 3/32"). or 4.0625" (4 and 1/16...

Slap Hazard, am going to chime in here with just a few questions and comments.... 1 what are the areas of the inlet and the nozzle? 2 what is the area of your flame holder? 3 where and how are you injecting you fuel? 4 what are you going to use for fuel? 5 as Mike pointed out for a rectagular design...

Hi Tufty, I've sent you a PM, but suffice it to say I'll post some static images first (once the shop finishes a vital part needed to finish building it). It should take 2-3 weeks to finish building her and get the images up here at Pulse-Jets.com, and then a week or so for the video (depending on t...

Hey folks, just a quick heads up re INSIDE diameters for your Glue 130R intakes: It seems that some different third stage throat diameters are being reported as the RQR plans don't give an exact measurement, but forces the purchaser (of the plans) to measure the distance then X 2. If the ID of the t...

Going back to the original patent Gene based the claims for his engine while using round tubes for his sonic stack intake---> This being the case we can take a better look at the 130R. 75% of the area of the third intake requires the second stage to have an inside diameter of 3.625" and maybe + 1/64...

Going back to the original patent Gene based the claims for his engine while using round tubes for his sonic stack intake. This being the case we can take a better look at the 130R. 75% of the area of the third intake requires the second stage to have an inside diameter of 3.625" and maybe + 1/64". ...

Hey Bro Luc , i agree absolutely with your comment---nice to see you still on board with the site and pressurejet project(s) take care, kevin aka roland2001

i think one of these is close to what Luc is saying ---but i've heard of two different reasons 1st ) makes the engine much easier to "throttle" --as the "fishtail" is of varying lenghts depending upon where one might measures it at any given throttle setting 2) the "fishtail" helps to elliminate the...

PS i can show you how to do an "inline" as opposed to an "L" if you wish kevin