Dec 17, 2003 · 1. Get a pint sized mason jar, or a glass jar that used to contain jelly or jam (thus the name 'jam jar'). 2. Drill a 0.5 inch (13mm) hole in the center of the ...

Nov 6, 2007 · A 3/4 inch hole is too big! Make it a half inch or even 7/16. For small jars you have to make the hole even smaller. I would skip all the copper ...

Feb 4, 2009 · Hello I have been making a few jam jar jets for the past few days using Heet gas line antifreeze as fuel. I made 2 jets that worked well on ...

Jul 3, 2006 · The jar should have a tight sealing lid, and you should only put enough fuel in the bottom to cover the bottom of the jar. Too much will splash ...

Aug 17, 2004 · A (hopefully) simple question for the jamjar enthusiasts....how does one scale the vent-hole to match the size of the jamjar you are using?

Oct 29, 2007 · I want to make a jam jar jet. I plan on using methylated spirits as fuel and I have a jar thats about 7cm in diameter and roughly 11cm high. What size hole ...

Sep 29, 2004 · We put a little bit of methanol and close the jar tightly. I grab the lighter and put the flame over the hole. Wow! But... It didn't run more than a second!

Nov 21, 2008 · Hey guys. I'm new here. I've built a jet before, one from a jam jar. I followed a guide in Make Magazine they had a few years back.

Jul 14, 2017 · But wouldn't a real 55 gallon jam jar jet or snorkeler be fun to watch chuffing away steadily? An acetone drum that had been rinsed. https ...

Feb 15, 2007 · I've done it with small jam jars, but this was under "ideal" conditions - indoors in an air-conditioned space, low humidity, etc.