Thanks - that really surprised me, too. I'm sure it was largely down to me inadvertently leaving the gas canister on its side so that some liquid ended up going up the pipe!Really impressive, especially how quickly you got it running!
It was liquid propane/butane in the hose, but I think it was surging back and forth a bit. They are notoriously thirsty though - I'm working on about 400cc/minute for my kerosene pump. I'm hoping it will be much more stable with a metered supply of liquid fuel, rather than the free-for-all liquid flashing into gas as it moves around the pipes.Thirsty, if thats liquid propane/butane mix in the hose? I expect that is chilling the combustion chamber and it should run very differently with kero?
No, not properly - I took the tapping from wrong place to pressurise the oil supply - I thought I could get away with using the starting gas injector connection instead of tee-ing into the pressure gauge line, but this ends up being at a lower pressure than the bearings once the speed picks up, so the flow goes the wrong way (I have now realised! ). Luckily, the bearings seem to have survived. This arrangement will be ditched once I go onto liquid fuel - the fuel will have some oil in it and there will be a bleed from the main fuel supply to lubricate the bearings instead.Was the oil feed working ?
Would be interesting to see it mounted on a skateboard tied to a luggage scales to give an idea of the thrust being made
thank you for sharing it with us.
Fixed that for you, find your crash helmet!great build, very impressive
Would be interesting to see it mounted on a skateboard to give an idea of speed and thrust being made