Camping fan

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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SpudBlaster15
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Sun Dec 03, 2006 2:16 am

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Last edited by SpudBlaster15 on Wed Jul 14, 2021 12:16 pm, edited 2 times in total.
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Bluetooth
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Sun Dec 03, 2006 7:54 am

I've seen someone on this forum use one of those before but, Im to lazy to find it.
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mindtrickonu
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Sun Dec 03, 2006 3:28 pm

how big is the chamber that's in? ... what fuel are you using? and (looking at the picture) is it blowing air toward you or down the barrel?
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Bluetooth
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Sun Dec 03, 2006 3:37 pm

Down the barrell unless he switched the wires going from the batteries to the motor.
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SpudBlaster15
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Last edited by SpudBlaster15 on Wed Jul 14, 2021 12:16 pm, edited 1 time in total.
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mindtrickonu
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Sun Dec 03, 2006 4:35 pm

AWESOME .... cus thats nearly exactly what im using ... so when you say a great performance increase .... u mean 20 yards? or 100 yards increase?
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MisterSteve124
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Sun Dec 03, 2006 5:01 pm

He means like 20 yards a fan will not give you +100 yards
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SpudBlaster15
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Sun Dec 03, 2006 8:08 pm

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse potenti. Sed dictum lacus eu nisl pretium vehicula. Ut faucibus hendrerit nisi. Integer ultricies orci eu ultrices malesuada. Fusce id mauris risus. Suspendisse finibus ligula et nisl rutrum efficitur. Vestibulum posuere erat pellentesque ornare venenatis. Integer commodo fermentum tortor in pharetra. Proin scelerisque consectetur posuere. Vestibulum molestie augue ac nibh feugiat scelerisque. Sed aliquet a nunc in mattis.
Last edited by SpudBlaster15 on Wed Jul 14, 2021 12:15 pm, edited 1 time in total.
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mindtrickonu
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Mon Dec 04, 2006 6:45 pm

so im guessing the fan did a much better job of atomizing and mixing the gas in the chamber
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mindtrickonu
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Tue Dec 05, 2006 6:51 pm

ok so i have another question ... i went out and bought one ... cus i'd like to try it and they're cheap ... how did you mount it?
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King_TaTer
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Tue Dec 05, 2006 7:09 pm

it looks as if you mounted it on the rite way with the airflow exausting out the muzzle. if you didnt then do so, trust me its better. 8)
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mindtrickonu
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Tue Dec 05, 2006 8:53 pm

well .. lookgin at the picture ... thw two wires hanging down are for the fan? ..or for the spark ... and the screws are holding the fan up ... I DONT KNOW
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SpudBlaster15
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Last edited by SpudBlaster15 on Wed Jul 14, 2021 12:20 pm, edited 1 time in total.
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King_TaTer
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Tue Dec 05, 2006 9:28 pm

indeed spudblaster, indeed
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boilingleadbath
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Tue Dec 05, 2006 10:37 pm

Latke showed that a chamber fan increased [his launcher's] muzzle energy ~40%, IIRC... and that was with a fairly ideal ratio. (I expect a bigger increase with a oversized chamber.)

This was with both propane and with starting fluid.
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