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blackhawk

Built a combustion cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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blackhawk

Unread postAuthor: aturner » Wed May 18, 2005 9:37 am

Nothing revolutionary here. Just a combustion I've been working on for a while, and finally put on some finishing touches and snapped a few photos....
<img src="http://loose-cannon.home.mindspring.com/blackhawk/IM002394.JPG">

Side views...
http://loose-cannon.home.mindspring.com ... 002395.JPG
http://loose-cannon.home.mindspring.com ... 002396.JPG

This cannon is fairly large, with a volume of about 260 cubic inches.

The grey box is just something I picked up in the electrical section of a hardware store. The box holds a battery and toggle switch used to power the chamber fan. This box is mounted to the side of the chamber by two bolts that cannot be seen from the outside of the launcher. These mounting bolts are also wired up to form part of the spark system, so they serve a dual purpose.
http://loose-cannon.home.mindspring.com ... 002389.JPG
http://loose-cannon.home.mindspring.com ... 002390.JPG

Here are a bunch of photos showing the launcher and a pair barrels. I took these to compare the length of the breech portions of the barrels. Notice how the white barrel extends past what would normally be the end of the chamber and into a chamber extension. This makes it much easier to load spuds and vent the chamber.
http://loose-cannon.home.mindspring.com ... 002384.JPG
http://loose-cannon.home.mindspring.com ... 002385.JPG
http://loose-cannon.home.mindspring.com ... 002391.JPG
http://loose-cannon.home.mindspring.com ... 002386.JPG
http://loose-cannon.home.mindspring.com ... 002387.JPG

In the photos you'll notice almost no visible wires on the outside of the launcher. Instead used coat hanger wire insider the chamber and bent it to follow the inner curves of the chamber.

Finally, here I am holding the launcher with the shorter barrel...
http://loose-cannon.home.mindspring.com ... 2392_1.JPG

Edit:
Also, forgot to mention the quick disconnect fitting on the chamber extension. I use it to inject metered propane into this cannon. Here's the meter pipe setup...
http://loose-cannon.home.mindspring.com ... 0226-8.jpg
http://loose-cannon.home.mindspring.com ... 002284.jpg
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aturner
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Unread postAuthor: The_Engineer » Sun Mar 18, 2007 8:35 pm

your links dont work on my computer, you should check it out.
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The_Engineer
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Unread postAuthor: us sniper » Sun Mar 18, 2007 8:40 pm

Same, I could'nt get any of your photos. All it says is that they could'nt be located.
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us sniper
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