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What's your FoC? (Fuel of Choice)

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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What's your FoC? (Fuel of Choice)

Unread postAuthor: redchigh » Sat Sep 29, 2007 8:21 am

No oxygen allowed, whats your favorite (reasonably economical) fuel?

List your favorite fuel, and why.

I like Ether.
See the link here-
http://www.spudfiles.com/forums/viewtop ... tml#121837
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Unread postAuthor: super spuder » Sat Sep 29, 2007 12:03 pm

i like propane, cause it is easy to find and doesn't leave residue
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trying to decide on a new project, probably something small.
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Unread postAuthor: Pete Zaria » Sat Sep 29, 2007 1:09 pm

You're going to find the overwhelming majority here will vote for propane or MAPP gas.

I use propane because of it's easy availability ($3 per cylinder at the local hardware store), power, and cleanliness (as superspudder pointed out, it leaves no gunk or residue in your chamber, unlike any aerosol fuel).

For spray fuels, car starter fluid is the way to go...

Peace,
Pete Zaria.
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Unread postAuthor: thespeedycicada » Sat Sep 29, 2007 1:19 pm

butane,propane,and ether are the only fuels i use.
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current projects: co-axial piston valve.Status DONE!
S.P.E.C.S update mk 1 construction begining in febuary all the maths for it are done plans are drawn up and parts are listed.
NEXT project:auto piston valve.
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Unread postAuthor: Novacastrian » Sat Sep 29, 2007 6:29 pm

I like Butane because it is easy to meter and cheap as chips. In non-pvc cannons i like to use Methylethylketone or M.E.K. , 1 or 2 drops, wait 5 secs...fire in the hole! Works a treat.
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When you fill your car with refined oil remember that it has been paid for with blood and guts, some from your own countrymen, most not.

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Unread postAuthor: noname » Sat Sep 29, 2007 6:50 pm

Propane, injected through a hollow schrader with a syringe. Works perfectly every time, except with huge chambers.
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Unread postAuthor: DYI » Sat Sep 29, 2007 6:57 pm

Propane for cost-effectiveness, MAPP for power (metered of course). Unfortunately for me, cost-effectiveness always seems to take a back seat to power, which is probably why I have a few experimental launchers, and only one in somewhat working condition, which will be in the top 10 most powerful launchers here when I finally get the bugs worked out and post it.

I do have a really old spray'n'pray combustion that uses Axe deoderant with surprising efficacy.
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Unread postAuthor: MikeNice » Sun Sep 30, 2007 12:43 am

I'm kind'a partial to Static Guard, but only becuse I've been too lazy to set up my propane . . . .Butane is pretty neat too.
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Unread postAuthor: Redcoat » Sun Sep 30, 2007 1:20 am

Lynx Deodorant. Because I actually have a can and the cans can make really hand pistons for valves.

Propane because I only tried it once and I obliterated the target (Glass).
Then my neighbour nutted at me, so no more propane.
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Poo.
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Unread postAuthor: flamerz14 » Sun Sep 30, 2007 3:45 am

I like butane so far in my minis cos it leaves no residue. I cant find propane tanks in my area :( dunno why.
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well, this isn't much isn't it?

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Unread postAuthor: mtronic » Mon Oct 01, 2007 2:56 am

starter fluid and a small amount of mapp gas for extra fire power!
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