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spudgun range, are we falling short?

A place to ask general spud cannon related questions.
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Unread postAuthor: jackssmirkingrevenge » Sat Jun 23, 2012 5:21 am

Nice! does it thread directly into the base?
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Unread postAuthor: Petitlu » Sat Jun 23, 2012 5:44 am

Yes, I tapped at M10x1mm and spark plug is screwed on 10mm
Thread lock is sealed (Loctite 243)
This afternoon I'll do a shooting test
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Unread postAuthor: jackssmirkingrevenge » Sat Jun 23, 2012 11:11 am

Excellent, looking forward to it. One day I'll get started on the next long range projectile...
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Unread postAuthor: Petitlu » Sat Jun 23, 2012 11:16 am

I have not been able to try the spark plug this afternoon, the remote control batteries were empty ...
sorry ... :?
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Unread postAuthor: jackssmirkingrevenge » Sat Jun 23, 2012 11:30 am

Don't worry :) it's practically guaranteed to work anyway.
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Unread postAuthor: Petitlu » Sat Jun 23, 2012 11:32 am

I know I know ... :D
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Unread postAuthor: ramses » Sat Jun 23, 2012 5:34 pm

Actually, you may have ignition troubles. I assume that by 7/100, you mean 0.070". If that is the case, your gap is just over 1/16" and at 16x would then require ignition and insulation to a 1" spark in atmospheric air.

If you meant 0.07mm, than damn, that's small!

In either case, you'll need a long barrel and a high propellant SOS to get the most out of that chamber.
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Unread postAuthor: Petitlu » Sat Jun 23, 2012 5:38 pm

I mean 0.07mm! :D

great performances are not wanted here.....
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Unread postAuthor: jackssmirkingrevenge » Fri May 03, 2013 11:18 am

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Unread postAuthor: Labtecpower » Fri May 03, 2013 1:19 pm

Now we need to test how much acceleration this thing can take :roll:
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Unread postAuthor: jackssmirkingrevenge » Fri May 03, 2013 2:03 pm

Being so compact I would think it would be fine, especially if shielded in some padding. It would still not take kindly to being buried though, so a break-away tail is essential.
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Unread postAuthor: POLAND_SPUD » Fri May 03, 2013 3:23 pm

it is actually fairly easy to build a a directional antenna that can be used to locate transmitters

and no you don't need bluetooth and smartphones
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Unread postAuthor: jackssmirkingrevenge » Sat May 04, 2013 1:48 am

POLAND_SPUD wrote:it is actually fairly easy to build a a directional antenna that can be used to locate transmitters


Yeah but these are like 25 bucks a piece.
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Unread postAuthor: POLAND_SPUD » Sat May 04, 2013 3:02 am

yeah it might be but bluetooth for something so simple is an overkill

AFAIK it can be as simple as a loop antenna
http://en.wikipedia.org/wiki/Radio_direction_finding


don't ask me how to build a transmiter but I am sure duane or technician can post a schematic or at least mention where to find one
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Last edited by POLAND_SPUD on Sat May 04, 2013 3:25 am, edited 1 time in total.
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Unread postAuthor: Zeus » Sat May 04, 2013 3:06 am

Look up "foxhunting" in regards to amateur radio, it's the sport of finding a radio transmitter, ranges of several miles.
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