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Post by azwood on Nov 22, 2018 14:57:47 GMT -5
The blowers just a cheap eBay jab the impeller's 190mm
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Post by slittlewing on Nov 23, 2018 4:49:52 GMT -5
Great job!! Look forward to seeing a video of it starting up!
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Post by azwood on Nov 24, 2018 0:24:38 GMT -5
Got sick of taking the wheel of every time I run this thing so I've made a new nozzle from crap I had laying round just did pie cuts to keep a open bend I've also went bigger than the last to try allow for the losses from the bend well see how it goes.   |
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Post by smithy1 on Nov 24, 2018 1:13:46 GMT -5
Nice bit of pipework mate....saves the rear tyre melting.
Smithy.
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Post by azwood on Nov 24, 2018 23:40:08 GMT -5
Nice bit of pipework mate....saves the rear tyre melting. Smithy. Got her fired up last night and had forward motion for the first time had it tied off but the first time it ran I got it running on diesel and a little bit of throttle the thing wanted to launch big time I suddenly didn't trust the rope much so I shut her down.its going to take some getting used to its a little scary to be honest she's got some power. |
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Post by azwood on Nov 25, 2018 2:45:57 GMT -5
Still don't have a number for thrust there was to much going to worry about looking at the scales I reply need a gopro so I can review the footage after
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Post by turboron on Nov 25, 2018 8:03:54 GMT -5
azwood, its like flying or combat. Boring or panic when something goes South.
Thanks, Ron
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Post by smithy1 on Nov 25, 2018 16:20:49 GMT -5
Nice bit of pipework mate....saves the rear tyre melting. Smithy. Got her fired up last night and had forward motion for the first time had it tied off but the first time it ran I got it running on diesel and a little bit of throttle the thing wanted to launch big time I suddenly didn't trust the rope much so I shut her down.its going to take some getting used to its a little scary to be honest she's got some power. I hear ya champ, my GT6041 powered machine gets plenty angry when the power comes on, then the A/B just makes things crazy....can easily push two 20liter drums of water along the ground .....and it tries to jump a pair wheel chocks too.....John and myself had a bit of a chuckle at it after a run one day in Newcastle. Smithy. |
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Post by azwood on Nov 25, 2018 16:31:46 GMT -5
Yeah she's a wild machine
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Post by azwood on Nov 25, 2018 17:18:31 GMT -5
I might try driven it just on thrust to see how it is may as well its set up
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CH3NO2
Senior Member
Joined: March 2017
Posts: 455 
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Post by CH3NO2 on Nov 25, 2018 18:22:16 GMT -5
Got her fired up last night and had forward motion for the first time had it tied off but the first time it ran I got it running on diesel and a little bit of throttle the thing wanted to launch big time I suddenly didn't trust the rope much so I shut her down.its going to take some getting used to its a little scary to be honest she's got some power. Scary power is an excellent problem to have!  |
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Post by azwood on Nov 25, 2018 18:26:05 GMT -5
I really didn't expect it to want to move at 1/3 throttle can't wait to check what the thrust is I'll use a chain from now on I think lol.
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Post by smithy1 on Nov 25, 2018 20:51:35 GMT -5
With your impeller being ~100mm, you'll be looking at ~150lbs of static thrust. My 106mm engine runs a little higher than that be not a great deal....running wet, my 6041 pulls a healthy 200lbs plus.
Acceleration will be nothing like a wheel driven machine though...no comparison really....however, top speed may indeed be higher with the non-wheel driven beast as there's no speed/rpm restriction on turbine or sprocket-chain to contend with.
Smithy.
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Post by azwood on Nov 26, 2018 4:33:44 GMT -5
With your impeller being ~100mm, you'll be looking at ~150lbs of static thrust. My 106mm engine runs a little higher than that be not a great deal....running wet, my 6041 pulls a healthy 200lbs plus. Acceleration will be nothing like a wheel driven machine though...no comparison really....however, top speed may indeed be higher with the non-wheel driven beast as there's no speed/rpm restriction on turbine or sprocket-chain to contend with. Smithy. The outer tips of the turbine are 110mm I recently checked with the vernier's so you think I may get in the 200lb Regan is that with a afterburner?. |
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Post by smithy1 on Nov 26, 2018 4:45:16 GMT -5
The outer tips of the turbine are 110mm I recently checked with the vernier's so you think I may get in the 200lb Regan is that with a afterburner?. No...I'm guessing maybe 185-ish with A/B.....but that's still not too bad. John may have a better idea on the calculations than myself though.... The biggest issue with the AB is getting it to work well, a lot of work is needed to get the pipe to the correct length, size OD and volume.....flame holder, spray ring.....in the right spots etc..AB pump volumes and pressures also need to be just so. As John mentioned, you need to get your gas producer running at it's best before even thinking of bolting an AB system. Smithy. |
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