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Hi paul, no its an old dinosaur thats done loads of tv films mostly in sweeden. were making a new ecu for it. this was one of the first successful starts

i keep meaning to get those other two back of you to give them a run

Hi Phil, that's exciting. What is the ECU based on?

its probably the same engine

@@waspsnest ahh, think had half of that at my house 20 years ago before it was running, think I have a photo of me holding it lol

email me pheward@yahoo.com

didnt know if that tool would cut it sticking out that far. its just taken me 3 days to hand tap the last of the threads, roughlty an hour per hole and 23 tap regrinds. its horrible material

i just worked out how to turn on comments they said it was an urgent job so i stayed up until 11 last night roughing out most of it, finished it this morning. the bloody things still sat on the table ready to be collected

its only run a few times since that was filmed, its cleaned up and ready to run again. on that one all the rotor and sttors were spark eroded, im now about 80% able to run a 5 axis mill and make them much quicker. im running the mill 12 - 17 hrs a day mon - friday on various jobs (just put up a short vid of one of them) and studying the manuals all weekend. the next stage is to do a simplified version that dosent cost 250k. the whole plan back in 1983 wss to do a working redesign of jerry Jackmans engine that he used in Barjay, and after that do the axial. that took 35 years with a few diversions when it turned into a career, lost a bit of drive after realising it was mission complete. I will continue when im fully confident on the mill and move it to the next stage.

Продолжай смотреть. Очень скоро начну делать новую версию осевого двигателя. сейчас учусь пользоваться 5-осевой фрезой

жду.@@waspsnest

it will return. its sat on the test bed next to the lathe which is next to that mill. I ddint do the programing for that wheel. found a few folders with the NC files and managed to dig out the ones that worked. Id only been using 5 axis a matter of weeks when i did that. its a few months later now and im rapidly growing the ability to do the full modeling cam programing and machining everything from scratch. always got the next axial in the back of my mind

@@waspsnest damn nice, i wish you luck and the project will be awesome

im going to do a remake of this fairly soon. starting to get to grips with 5 axis milling. it would be easier to mill an axial rotor than a centrifugal

What if we put planetary reduction gears into the mix? Amateurs who did not care spun up turbines to velocities which make no sense for even a centrifugal compressor. So I propose one reduction to the centrifugal stage and another reduction to a large diameter axial stage ( 3 stages a actually). Pressure feed oil into bearings and gears.

sorry i just saw your message. my email is pheward@yahoo.com

I now have 6, 8,and 10 lb versions of this engine running. the 10lb has a sub 1 sec acceleration time from idle to max rpm. we filmed it the same day as the axial and Jackman replicas.

yep, it was recorded on the laptop webcam, he saw himself on the screen and started an argument

yes, dont annoy him, hes a taekwondo black belt now

@@waspsnest how much thrust did this model generate??

what is seafom? im supprised it works at all to be honest. i bought it for £15 as a non runner. no compression so made a new piston ring from a bit of scrap cast iron. just guessed the shape and wire edm cut it. its been running for 2 years on petrol and turbine oil 3% mix

Seafoam clears out all the varnish and gunk built up in a engine from the intake on out, its wonderful stuff, you dump it straight into your intake while the engine is running and warm, gun the engine for a bit, then let it die(all whilst pouring seafoam into the intake), you literally see a cloud of garbage and gunk come out your tailpipe(for cars, motorcycles, lawnmowers, etc) seafoamsales.com/ I was wondering, what did you use for bearings on your turbine engine? something custom made or off the shelf? What you use for thrust bearing?

i will have a look at it. I thought you wanted me to go to the beach and bring back a bucket of water. the bearings are hyhbrid ceramic converted from steel ones. very loose high clearance steel tracks with silicon nitride balls. couldnt find the size or type I wanted so made my own from steel radial into ceramic angular contact

yes it did help. this is actually the fourth axial engine ive built. (the previous one did just manage to self sustain in 1991). axials have a heavier rotating mass than a CF engine so can struggle to accelerate to idle, it needs a bigger flame and has less chance of working if half of it is burning behind the turbine. I did go a bit over the top with the combustor volume. I thought its better to go too big than too small and be sure of having a runner. its such a lightly loaded combustor, its so cold most of it is still shiny. so I can either cut back on the volume or scale up the rotor.

Thank you! I've always been highly interested in small-scale axial turbine design, sadly I'm not in a position to create one of my own. Regardless, I love gathering all the knowledge I can on the subject!

+ArcturanMegadonkey yes, and then fly it in something

+Esoteric Innovator its not all that old, only about 2 years. but modelled on the first model engine to fly in 1983. this is my version of it. the casing sizes were scaled from the cover of a magazine, all internals are my own work. had to shorten it slightly from the original to avoid shaft harmonics, I think thats what destroyed the original jerry Jackman engine. the inlet is polished and annodised red now and looks much better than on this vid. think the axial is more likely to be flown before this one does

yes its my favourite one out of 100+ designs

+aravind shreyas yes its very much a one off, I know how to make it much cheaper and quicker to build. im working on that now for the next version. this one is all spark eroded. each stage uses a set of 4 electrodes, roughing tools, semi finishing and finishing tools. they cost £2000 each. and theres 32 of them in total just for the compressor. and another 6 electrodes for the turbine. it would be very difficult to cast or mill blades with this thickness and keep the airfoil shape

+phill heward spark eroded!! wow, I'm impressed. I guess there isn't much video related to a build of axial model jet and I think many will be happy to see a build video or a video related to internal parts! Thumbs up for the video. waiting for next version

@@aravindshreyas3571 yes im not the type to be thinking of filming everything, im far too focused on doing the actual work, the bits of film i have done are such crap quality its probably best i dont bother

2.2:1 in theory. its not run over 4 psi so far. im creeping the speed up slowly

2.5 i think. it needs a few more stages to get around 3.5 ish