Search found 9 matches

by pulsethug
Sun Jun 24, 2018 2:58 am
Forum: Valveless pulsejet forum
Topic: Please put your "I am new and need help" question here.
Replies: 376
Views: 1763079

Re: Please put your "I am new and need help" question here.

I second the recommendation by metiz and Mark to use a spark module. I use them exclusively now. https://www.amazon.com/Ardokit-3-6V-6V-Module-Voltage-Generator/dp/B01GM9B4R0 You can run these off of a single 18650 lithium battery or a 5volt power brick off of a wall outlet. Here's a couple of obser...
by pulsethug
Wed Jun 20, 2018 8:19 pm
Forum: Valveless pulsejet forum
Topic: Please put your "I am new and need help" question here.
Replies: 376
Views: 1763079

Re: Please put your "I am new and need help" question here.

Can you post a couple of pics of your rig. I'd like to see how your fuel is actually entering the system.
by pulsethug
Thu Jun 29, 2017 8:29 am
Forum: Valveless pulsejet forum
Topic: Please put your "I am new and need help" question here.
Replies: 376
Views: 1763079

Re: Please put your "I am new and need help" question here.

Cool. Do you think the color would stay that way if reheated?
by pulsethug
Tue Jun 27, 2017 6:16 pm
Forum: Valveless pulsejet forum
Topic: Please put your "I am new and need help" question here.
Replies: 376
Views: 1763079

Re: Please put your "I am new and need help" question here.

Mike,

Could you please relo this titanium jet sub thread to a new top level thread. Or give me a couple hints on how to do it. Thanks.
by pulsethug
Tue Jun 27, 2017 6:12 pm
Forum: Valveless pulsejet forum
Topic: Please put your "I am new and need help" question here.
Replies: 376
Views: 1763079

Re: Please put your "I am new and need help" question here.

Mark, I bought the lithium chloride specifically for it's methanol flame coloring capability. Strontium nitrate produces red as well. My two faves are lithium for cherry red and boric acid for the ghostly green. I'll have to give copper a try. Is there some specific copper salt you would recommend e...
by pulsethug
Tue Jun 27, 2017 4:05 am
Forum: Valveless pulsejet forum
Topic: Please put your "I am new and need help" question here.
Replies: 376
Views: 1763079

Re: Please put your "I am new and need help" question here.

I'm having trouble uploading the video file. It's 17MB, so maybe that's the problem. I'll see if I can get my son to put it on youtube so I can post the link.
by pulsethug
Tue Jun 27, 2017 3:55 am
Forum: Valveless pulsejet forum
Topic: Please put your "I am new and need help" question here.
Replies: 376
Views: 1763079

Re: Please put your "I am new and need help" question here.

The grade is CP-2 Mark. Some quick google-fu didn't reveal much as far as the operating temp of a typical thermojet. Your concern re: temperature may be a valid one. I know for a fact that titanium brought up to weld temps must be flooded with shielding gas while it cools. Titanium is an active meta...
by pulsethug
Thu Jun 22, 2017 5:29 am
Forum: Valveless pulsejet forum
Topic: Please put your "I am new and need help" question here.
Replies: 376
Views: 1763079

Re: Please put your "I am new and need help" question here.

Hi guys! I'm REALLY happy the valveless forum is as large as it is. Yeah I'm prolly going to need help at some point. I purchased a 10 lb thrust stainless thermojet (5" dia chamber) and I am in the process of duplicating the design in 1mm thick titanium. I'm finally starting to get some traction on ...