Search found 23 matches

by longjohn
Sat Feb 25, 2012 1:40 am
Forum: Gas turbine forum
Topic: Been a while - new project, T04 Gas Turbine.
Replies: 215
Views: 277312

Re: Been a while - new project, T04 Gas Turbine.

Ash - I was wondering if you could tell me what the makeup of your casting sand is. I am having problems with my sand not sticking together, I have got pretty ordinary sand, 5% fireclay and a bit of water and a little oil also. I think I can get finer silica sand from hardware and landscaping shops ...
by longjohn
Sat Sep 17, 2011 12:53 pm
Forum: Gas turbine forum
Topic: Project Radial Jet from a 105mm Holset
Replies: 40
Views: 57440

Re: Project Radial Jet from a 105mm Holset

Got a good bender, all good, no sand required lol Should have done that in the first place! Had some gains in the ECU area of this project, Now have a unit that reads the RPM up to 60K rpm, and have got a few other things up and running. Next I have to order a AD595 Thermocouple chip (or two) to do ...
by longjohn
Wed Jul 20, 2011 10:01 am
Forum: Gas turbine forum
Topic: Project Radial Jet from a 105mm Holset
Replies: 40
Views: 57440

Re: Project Radial Jet from a 105mm Holset

Im back into this project, did a test casting made a sand packing tool, worked a tread. Used lost foam casting method. The lathe is getting a major repair done, which is why not alot is happening lately, it takes a lot of time to get someone to do tricky machining work done sometimes. Got some 9mm 1...
by longjohn
Thu Dec 09, 2010 7:44 am
Forum: Gas turbine forum
Topic: Project Radial Jet from a 105mm Holset
Replies: 40
Views: 57440

Re: Project Radial Jet from a 105mm Holset

Gee its hard to tickle interest in here these days. Where does everyone chat these days? Ive biult a balancer setup, similar to ash powers setup, but ive used a opto isolator controlled by the 339 comparator chip, to fire the xeon circuit. This is because the timing light circuit is negatively coupl...
by longjohn
Sun Nov 21, 2010 1:35 am
Forum: Gas turbine forum
Topic: Project Radial Jet from a 105mm Holset
Replies: 40
Views: 57440

Re: Project Radial Jet from a 105mm Holset

Welded most of the cc chamber up, not the best welds but it is only 1mm stainless steel and practice makes perfect! Its the first biuld and will most likely need to be modified to tune it all up. I decided I will get the final product made neatly by getting some 1.5mm sheet and get it proffessionall...
by longjohn
Wed Nov 10, 2010 10:50 pm
Forum: Gas turbine forum
Topic: TV94 TurboFan Build
Replies: 59
Views: 121230

Re: TV94 TurboFan Build

Been Very quiet in here for a long time! Whats happening ?
by longjohn
Wed Nov 10, 2010 3:34 am
Forum: Gas turbine forum
Topic: Been a while - new project, T04 Gas Turbine.
Replies: 215
Views: 277312

Re: Been a while - new project, T04 Gas Turbine.

Whats happened? Thats the end of the thread?? But i need more!! Ive been reading this entire thread all week from start to end as i had not caught up in a while - and now there is so many things here that will now become an influence in the design and testing of my machine!! Ill be constructing my o...
by longjohn
Tue Nov 09, 2010 7:42 am
Forum: Gas turbine forum
Topic: Project Radial Jet from a 105mm Holset
Replies: 40
Views: 57440

Re: Project Radial Jet from a 105mm Holset

Heres a few piccies:)
Will finish drilling all the combustion chamber holes soon and have the three peices needed rolled up and welded together. Bought a nice TIG welder last week:)

Can wait to hear this puppy run:)
by longjohn
Tue Nov 09, 2010 4:13 am
Forum: Gas turbine forum
Topic: Project Radial Jet from a 105mm Holset
Replies: 40
Views: 57440

Re: Project Radial Jet from a 105mm Holset

This project still going! Intake done. Exhaust end nearly finished, just measuring up and cutting steel for combustion chamber. Have gone with 20 feul points, chamber 160mm long, conicle shapes to run exhaust into turbine to accelerate the air into it. Given sheets to a friend who has a rolling mach...
by longjohn
Wed Dec 23, 2009 2:45 pm
Forum: Tools and Construction
Topic: dB turns your Iphone in to a db meter!
Replies: 7
Views: 7187

Re: dB turns your Iphone in to a db meter!

Im looking for something up to date and compact to control my next project does anyone know much more about the iphone and if you can run some kind of control logic program and some cables to breakout of it with? I did see somewhere someone was using a pda to remotely control his gas turbine which w...
by longjohn
Thu Mar 12, 2009 3:28 am
Forum: Gas turbine forum
Topic: Which Compressor Wheel KJ66/ KJ66 BUILD FROM SCRATCH PROJECT
Replies: 27
Views: 41531

Re: Which Compressor Wheel KJ66/ KJ66 BUILD FROM SCRATCH PROJECT

so whats happening with this? any updates?
by longjohn
Wed Mar 11, 2009 10:23 pm
Forum: Gas turbine forum
Topic: Project Radial Jet from a 105mm Holset
Replies: 40
Views: 57440

Re: Project Radial Jet from a 105mm Holset

Ebay!! Thats where i got mine. Just gota watch and wait:)

Ive actually got back into this project again, Work and other commitments have taken me away from it FAR too much.
Ive made the compressor back plate and am starting to cut the vane guides. Photos soon:)
by longjohn
Tue Jan 22, 2008 8:43 pm
Forum: Gas turbine forum
Topic: Been a while - new project, T04 Gas Turbine.
Replies: 215
Views: 277312

I love this project, I am using it to guide me for biulding my jet engine based around this design, but reverse flow to allow me to biuld a better slightly larger combustion chamber, and also so I dont have to lengthen the turbine shaft. Ash, have you stumbled across on the net my jet scooter creati...
by longjohn
Wed Jan 09, 2008 9:44 am
Forum: Gas turbine forum
Topic: Looking for a Homebuilt gas turbine
Replies: 4
Views: 6067

might be a bit diffucult mate, I only just realised now that your in canada. Bit of a long way to send something like this. sorry mate.

Video of it here... http://www.youtube.com/watch?v=oWXQUgL0Rt0
by longjohn
Tue Jan 08, 2008 3:24 am
Forum: Gas turbine forum
Topic: Looking for a Homebuilt gas turbine
Replies: 4
Views: 6067

would you like my to4 powered jet scooter? The turbo is 1200 dollars brand new and the oil pump on it is 200 so I would have to let it go for at least 1300. It works, runs on kero (starts on petrol) and you need a leaf blower to start it. It has automatic 10 minute cool down timer on the oil pump, a...