cyclejerk

How do you go about building your own? are there kits?

Shok

My Feedback: (28)

you can get a wren54 from jethangar.com for about 1500$
Simjet has a kit also I believe.

Crazy4Flight

My Feedback: (540)

simjets kit turbine:

http://www.greatnorthernmodels.com/
then go to turbines
then clicK on the "SONIC"

http://home.cogeco.ca/~kmcleod22/turb/sonic.htm

ajcoholic

My Feedback: (10)

A good start is to buy Thomas Kamps 2nd edition book "Model Jet Engines"

https://www.traplet.com/pages/store/...d=3581&-search

And read it about 10 times untill you understand it. If you have machine shop tools and the knowhow to use them you can build your own engine, if not, a kit will be the way to go about it.

If nothing else, reading and understanding the book above is a great way to familiarise yourself with the engine's construction, development and operation.

AJC

diyjet

66mm trubine wheel and ngv only 100us $, VERY CHEAP made in CHINA .
IF anybody want buy it mail me
[email protected]
i am builting a kj66 now

ajcoholic

My Feedback: (10)

That is cheap! Is the wheel certified and X ray'd?

AJC

paulj1969

if i were you i'd build a KJ66, join the GTBA and get all of their old newsletters to read of the upgrades.
see my site for info on how i built mine, if you need any help please get intouch.
http://www.microjets.co.uk

mr_matt

My Feedback: (10)

I get stuff certified there all the time for work. For 20 bucks I could a certifcation that the earth was flat :-)

calkai

YES, it may be true.
I could not fully believe the certification written in China as well.
But for home builder, it could be a good source to try.
Of course, take the risk and care with what you are doing for safety.
Maybe find someone you believe to do NDI following AMS STD for you first.
Is there paten for KJ66 turbine and NGV?
Did someone paten them like auto start??
Be careful with the legal issue here, DiyJet!!

GrayUK

Get yourself a Wren 54 kit, well proven, lots in the states and the rest of the world.
Full back up.
Good price, you can not go wrong!

diyjet

it is homemade turbine begining in china and i am one of them.
i only get some parts from the factory of the PLA.,but it is not cheap for chinese .
i will GET more DETAIL about the turbine and NGV from the factory.i think it must be good.
turbin wheel tested by fluorescent crack detection
thanks for everybody's help!!!!

GrayUK

Buy a Wren 54, it will be cheaper in the end!

paulj1969

Paul, you are correct in stating this and it probably will be cheaper, but there are still a lot of people out there wanting to be true homebuilders and find out the whole thing for themselves, i built a KJ66 about 6 years ago, it taught me loads, ok so i was stripping it down after every run to adjust something but that was down to my careless building but even so the knowledge gained was invaluable.

the Wren MW54 kit is great and works a treat but you don't exactly build it from scratch as most of the parts are ready to assemble, these guys want to say i've build this motor almost from scratch and i'm flying it, the turbine wheel and NGV will need a lot of maching, no doubt they will maching the shaft tunnel from solid, construct the combustion chamber from sheet, the outer casing from a camping gaz cylinder, machine the NGV flange from heavy sheet, drill and tap all the holes........thats a homebuilt turbine, these guys want to 'build a turbine'

if i had to go back 6 or 7 years and do it all again and the MW54 kit was around i'd opt for the MW54 easy route, but thats just me.

unknown

Hi pauls Microjets i have a question for you. I am building the 28# engine but can,t get not pass 22 #. Have you ever come across that problem and what was the solution. I did the cone mod with bigger compressor .

paulj1969

i'm not sure exactly what you are trying to say here, please repeat so i can understand

thanks

unknown

Hi pauls Microjets I have the artesjet setup jg100. with the 12 injector 66mm turbine wheel basic setup Larger compressor wheel. My RPM goes up to 120.000 with no problem. At full power about 123.000 it start fluttering

http://www.artesjet.com/components.htm

paulj1969

if it starts fluttering it could be surging, i'd ask Either Gasper Espiel or Jesus Artes, if it is surging then it's more than likely to be down to the diffuser.
if it isn't surging then i don't know without having a play with it or listening to it

all the best

Paul j

diyjet

hi paul :
can other type compressor and turbine instead of mk4 using ?
3ks !!!

paulj1969

Diyjet, yes you can use different compressors and turbines but eveerything will need to be changed accordingly

diyjet

hi paul

what type compressor and turbine wheel are mk4 using ?and tell me the other type that can instead of them?

pls ,3ks.

u can email to me :[email protected]

paulj1969

i don't actually know what other compressors you can use, i was just stating that you 'could' use other compressors and turbines

desmop

Hi, Could you tell me where to find out info on pricing and availibilty of this 66mm Turbine wheel and NGV from China? I'm starting a Kj66 project and want to get a "certified" turbine wheel and NGV. Thanks for your help.

ajcoholic

My Feedback: (10)

The only places I am aware that sell genuine, certified to aerospace spec turbine wheels in 66mm sizes are Wren Turbines in the UK (they sell the 66mm and 54mm size and also a larger size for their gas generator for the turboprop) and Dieter Albiesser in Europe (He is Swiss I think - has ads in RCJI magazine anyhow), and Jesus Artes in Spain- and they all also sell cast NGV's also.

AJC

desmop

Thanks AJC for the info...

JATEU_01

Has anyone got plans for a turbine starter/spool up motor and mount for kj66 homebuilt!