Search found 325 matches

by Fricke
Tue Aug 19, 2008 9:05 pm
Forum: Gas turbine forum
Topic: "under bonnet gas turbine engine"
Replies: 3
Views: 2213

Re: "under bonnet gas turbine engine"

Hi! Have a look at http://tech.groups.yahoo.com/group/DIYGasTurbines/ and the flatmobile. There are other good designs of GT engines and many very good people that will and can help you in your quest to build a GT engine. John "racketmotorman" it the GURU on these things, he have helped many people ...
by Fricke
Sat Jul 12, 2008 11:06 pm
Forum: Valveless pulsejet forum
Topic: Why?
Replies: 6
Views: 1786

Re: Why?

Because You can?! Counter question is why not??
by Fricke
Tue Nov 06, 2007 10:29 pm
Forum: Gas turbine forum
Topic: New A400M Turboprop engine
Replies: 23
Views: 12948

Swept blades

SAAB used the same type of blades on their SAAB 2000 back in 1992...

But not 10K worth of horses =)

I personnaly like the "banana" style over plain straight blades...
by Fricke
Fri Aug 24, 2007 7:44 pm
Forum: Valveless pulsejet forum
Topic: M. and Mike's new experimental motor
Replies: 27
Views: 10011

Re: M. and Mike's new experimental motor

Congratulations! A very nice little engine!

The trust is impressive. Where do I buy one? =)
by Fricke
Sun Jun 03, 2007 8:00 pm
Forum: Gas turbine forum
Topic: idea for fuel injectio without fuel pump
Replies: 14
Views: 9087

Re: idea for fuel injectio without fuel pump

kinda new to the forum and dont really mess with the turbines but instead the valveless pulse jets, but i was wondering if anybody has or can do this to a turbine engine?>> drill a hole or use a hollow shaft for the compressor/turbine rotor and right were the shaft goes in through the combustion ch...
by Fricke
Fri Jun 01, 2007 9:56 pm
Forum: Off topic forum
Topic: Flow Pattern Near a Rounded-Nosed Intake
Replies: 2
Views: 2146

FOD...

Cool! So that´s why they want the runways to be clear of dirt and rocks? ;-) //Anders Well.. Yes =) How is the Jetbike going? All my fun projects are down until I´m feeling better.. And have all my welding licences finished... But I do have a few almost finished projects in my workshop, but then su...
by Fricke
Wed Mar 14, 2007 7:00 pm
Forum: Gas turbine forum
Topic: Johansson´s Pocketbike
Replies: 431
Views: 219945

The external air tank that I made earlier seems to work by the way. I filled the tank with 5.5 psi and after the start the pressure had dropped to 2 psi, the tank is stamped at 25 psi so if I fill it up to 10 psi I might get two starts out of it... I hope that it´s 25 bar or kg/cm² and not PSI!? ...
by Fricke
Wed Mar 14, 2007 6:58 pm
Forum: Gas turbine forum
Topic: Johansson´s Pocketbike
Replies: 431
Views: 219945

Thanks for your concern of my personal safety by the way... *LOL* *LOL* You know that I´m concerned about your safety, I´m going to beat you and your tiny pocketbike racer... I´m collection parts for my own GT pocketbike. All that I lack is the pocketbike *lol* How is the Suzuki going? //Fredrik
by Fricke
Wed Feb 28, 2007 9:05 pm
Forum: Gas turbine forum
Topic: Johansson´s Pocketbike
Replies: 431
Views: 219945

Re: throttle

I know that the radient heat from the combustor at higher P2´s will soften the hoses, but it will take some work before I can run the engine at those pressures so until then I will stick to the old 20 psi fuel hoses. [/i][/color] The hoses act as an accumulator (not much but it does) by switching ...
by Fricke
Tue Feb 27, 2007 3:23 pm
Forum: Gas turbine forum
Topic: Johansson´s Pocketbike
Replies: 431
Views: 219945

Throttle

Remove the rubber hoses in the fuel system and use copper / SS tubes.
by Fricke
Wed Jan 24, 2007 6:32 pm
Forum: Gas turbine forum
Topic: VNT turbos
Replies: 4
Views: 3640

Try it out!

I´m curius how well it will work! =)
by Fricke
Mon Jan 22, 2007 10:02 pm
Forum: Gas turbine forum
Topic: Been a while - new project, T04 Gas Turbine.
Replies: 215
Views: 162286

Ash Powers wrote:Finally finished up with the PCB layout and am pretty happy with how it turned out.
Nice work!
Ash Powers wrote:All in a convenient footprint of 5.6" X 3.1" (142mm X 79mm)
:)
That´s quite a small footprint! Don´t forget to make room for mounting holes! =)

//Fredrik
by Fricke
Sun Jan 21, 2007 1:00 pm
Forum: Gas turbine forum
Topic: Jetbeetle X-150 nearing completion!
Replies: 10
Views: 8677

Re: Analysing critical rotational speed of shafts

skyfrog wrote:Critical rotational speed :
a. Kamps' book = 136,270 rpm
b. CRS result = 12,520 rpm

Design speed :
10,500rpm
Hi Horace!

Is the results correct?

You have 136k RPM for a, 12,5k RPM for b and 10,5k RPM for c!
by Fricke
Sat Jan 20, 2007 10:17 pm
Forum: Gas turbine forum
Topic: Been a while - new project, T04 Gas Turbine.
Replies: 215
Views: 162286

Work is coming along nicely. A few setbacks, timewise, with getting the turbine shaft back from my turbo builder. The postal service apparently didnt' want to drop it off to him so he had to go pick it up himself. My order through Grizzly for some tooling also came incomplete which has stalled the ...
by Fricke
Sat Jan 20, 2007 10:03 pm
Forum: Gas turbine forum
Topic: Building the shrecky turbine
Replies: 40
Views: 19946

Now I remember why I decided not to weld on a rod!! The id of the turbine is gonna be .25 inches, I dont feel comfortable on welding on a thinner rod to something that is going to take a lot of force during lathe work. No need for welding a rod to the disk... Make a center hole in the disk and use ...