Search found 25 matches

by Chook
Sat Oct 31, 2015 6:11 am
Forum: Valveless pulsejet forum
Topic: Proposed pressure tap for the M40
Replies: 8
Views: 3229

Re: Proposed pressure tap for the M40

Brilliant construction!!!!! VERY nice work.
by Chook
Mon Apr 07, 2014 1:36 pm
Forum: Valveless pulsejet forum
Topic: lockwood hiller valveless pulsejet starting problem
Replies: 23
Views: 10425

Re: lockwood hiller valveless pulsejet starting problem

Nice job on your motor Mike. :D I don't know enough about injectors, to comment on your injector hole size. I'm sure someone here on the forum can help you though. I just made mine to a plan posted on this forum. Before I fitted the finished injector into the jet, I played around with it lit, out in...
by Chook
Sat Apr 05, 2014 4:48 am
Forum: Valveless pulsejet forum
Topic: lockwood hiller valveless pulsejet starting problem
Replies: 23
Views: 10425

Re: lockwood hiller valveless pulsejet starting problem

Your gas tank should be big enough. I have 12 x 1mm holes round my nozzle to diffuse the gas and it sits right in the middle of the first tapered cone before the combustion chamber. Your engine is not far off running, but it gets frustrating when they don't go. A link to mine. http://www.pulse-jets....
by Chook
Thu Apr 03, 2014 6:32 am
Forum: Valveless pulsejet forum
Topic: lockwood hiller valveless pulsejet starting problem
Replies: 23
Views: 10425

Re: lockwood hiller valveless pulsejet starting problem

Yes I agree. More gas. As a rough idea, mine likes to have a 2 mtr high flame coming out the exhaust, before shocking it with a leaf blower to start combustion. Mine won't run with continual air being blown into it. Just a wave past the intake with the leaf blower to get it to fire and it's away. Ch...
by Chook
Wed Dec 18, 2013 11:26 am
Forum: Valved pulsejet forum
Topic: Hobby King Dyna jet
Replies: 18
Views: 9679

Re: Hobby King Dyna jet

Spare reeds for it are now here. $1.99 for 5
http://www.hobbyking.com/hobbyking/stor ... _Bag_.html

:D
by Chook
Sat Dec 07, 2013 1:47 pm
Forum: Valveless pulsejet forum
Topic: Building Larry Cottrill's 'Lady Anne Boleyn' rev 06
Replies: 12
Views: 4639

Re: Building Larry Cottrill's 'Lady Anne Boleyn' rev 06

Very well done. Nice work on the 180 degree bend in particular.

One down one to go. :D

You are now officially addicted!!!!! :lol:
by Chook
Fri Aug 23, 2013 11:56 pm
Forum: Valveless pulsejet forum
Topic: Lockwood Pulse Jet won't sustain
Replies: 31
Views: 8713

Re: Lockwood Pulse Jet won't sustain

Good luck with your studies!!!!!

I'm sure you will let us know your updates. :mrgreen:

Cheers
by Chook
Fri Aug 23, 2013 11:53 pm
Forum: Valveless pulsejet forum
Topic: Chinese valvless won't start
Replies: 3
Views: 2410

Re: Chinese valvless won't start

Maybe too much fuel, bit too rich.
Wondering if you back the fuel off slightly, while it's running with the added air, then slowly remove the air nozzle.

Got to love these little engines. The frequency they run at, is just music!!!! :D
by Chook
Fri Aug 16, 2013 2:51 pm
Forum: Valveless pulsejet forum
Topic: Lockwood Pulse Jet won't sustain
Replies: 31
Views: 8713

Re: Lockwood Pulse Jet won't sustain

Hey do we have an update on your motor yet?
Did she go in the end?

Chook
by Chook
Mon Jun 03, 2013 12:04 pm
Forum: Valveless pulsejet forum
Topic: Swizzle Stick vs Radial Injector(all types) for Lockwood
Replies: 1
Views: 1208

Re: Swizzle Stick vs Radial Injector(all types) for Lockwood

I'm also very keen to know the findings as well. :)

Chook
by Chook
Thu May 23, 2013 1:16 pm
Forum: Valveless pulsejet forum
Topic: Lockwood Pulse Jet won't sustain
Replies: 31
Views: 8713

Re: Lockwood Pulse Jet won't sustain

AWESOME !!!!!!!!!!!!!!! :D :D :D :D :D
Very well done. They attract a crowd where ever you run them.

That is indeed just above an idle.
You would not be still smiling and sitting by it without hearing protection at full power.
by Chook
Sun May 19, 2013 10:07 am
Forum: Valveless pulsejet forum
Topic: Lockwood Pulse Jet won't sustain
Replies: 31
Views: 8713

Re: Lockwood Pulse Jet won't sustain

I am so pleased!!!!!! :D :lol:
Grinners are winners, you are very welcome.

Can't wait for the video.
You have given me a fantastic start to my week. 5 gold stars mate. :mrgreen:
by Chook
Fri May 17, 2013 3:32 am
Forum: Valveless pulsejet forum
Topic: Lockwood Pulse Jet won't sustain
Replies: 31
Views: 8713

Re: Lockwood Pulse Jet won't sustain

Awwww you are nearly there!!!! :D :D :D If you have to continually hold the air in it to run/start it means that you have too much gas flow. As soon as it starts and you pull the air away, it will quit as it's mixture is too rich. On mine if you can hear the injector hissing gas before the ignition,...
by Chook
Thu May 16, 2013 3:35 am
Forum: Valveless pulsejet forum
Topic: Lockwood Pulse Jet won't sustain
Replies: 31
Views: 8713

Re: Lockwood Pulse Jet won't sustain

Back again!!!! :lol: No my gas cylinder "tare" (empty weight) is 8.75 kgs empty and takes 8.5 kgs of gas to fill. It stands a total height of 450mm and is 1050mm distance around the middle. The measurements are............. My nozzles radial holes, are situated exactly 15mm from the intake into the ...
by Chook
Thu May 16, 2013 2:49 am
Forum: Valveless pulsejet forum
Topic: Lockwood Pulse Jet won't sustain
Replies: 31
Views: 8713

Re: Lockwood Pulse Jet won't sustain

Hi I'm not at home just at the moment. Looking at the video it seems to be over fuelled (too much gas) to start. :?: I let the lit orange gas, plume out the exhaust for a couple of seconds and then shock the intake with the leaf blower. You are so very close, I can't believe it hasn't continued to r...