Boater needs help

General water gun discussion.
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markwarren66
Posts: 2
Joined: Fri Jul 06, 2007 12:41 am

Boater needs help

Post by markwarren66 » Fri Jul 06, 2007 12:53 am

Hi All,

I'm looking for some advice on a water cannon/launcher/gun etc. I boat on a chain of lakes and there are some nasty waterfights that arise....generally only a minute or less in length, since we're usually passing each other in no-wake channels.

Most everybody has water cannons, the kind you put in the lake, pull the handle to fill with water, and then it blasts a quart or so of water 30-40 feet.

I don't have anything to defend myself with at the moment, and am looking for suggestions on what could work best.

Criteria includes:
Ability to shoot 40-50'
Need quick re-load capability...can't get a hose going and pump 30 times.

I'm not opposed to building something - Do you think anything would work better than the aforementioned cannons? Here's a link to the things that people often have on their boats in case you don't know what I'm referring to:
http://www.amazon.com/Stream-Machine-24 ... 99-9199669

Any help would be great as I'm tired of being on the wrong end of the soaking!

Thanks

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DX
Posts: 1780
Joined: Wed Feb 04, 2004 1:00 pm

Post by DX » Fri Jul 06, 2007 1:00 am

Homemade piston/river guns [the general term "water cannon" is inaccurate unless referring to the actual class of gun that are "water cannons"] tend to be better alternatives to manufactured versions such as the Stream Machine. [url=http://forums.sscentral.org/t4221/]This[/URL] topic may be of interest to you. The river gun there uses hydrolics to multiply its force. There are also simple ones, consisting of just a shaft, nozzle, and pump. They are very easy to make and very durable, getting ranges in the low to mid 50's depending on how fast you can move the pump.
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markwarren66
Posts: 2
Joined: Fri Jul 06, 2007 12:41 am

Post by markwarren66 » Fri Jul 06, 2007 2:34 am

Thanks - I really like the concept of post #76 in the link that was provided to me. A piston gun with a hose that can pull water from the lake, versus having to constantly reload.

So how do I find out how to build one?

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Silence
Posts: 3825
Joined: Sun Apr 09, 2006 9:01 pm

Post by Silence » Fri Jul 06, 2007 10:10 pm

The Waterzooka LR does not offer any improvement. In fact, it just has more complexity and much more weight because of the hydraulic fluid. The LR doesn't increase the pressure, so it doesn't increase the stream velocity.

If you want more range with a rivergun, you'll need more pressure. Remember, pressure is force over area; so to increase the pressure, you need to reduce the area. Thus, the best solution is to use a rivergun with a narrower tube. It will have less capacity, but there will be more range.

Most riverguns have tubing between 1" and 1.5" in diameter. In fact, you can see a negative relationship between range and area if you look through the thread DX linked to.

If you want really good range, you'll want a 1/2" or 3/4" tube. No riverguns are commercially built with this diameter, so you'll need to build your own. It's essentially a pump tube with nozzles.

Some links:
http://www.sscentral.org/tech/homemades/pumps.php
http://www.geocities.com/m15399/pumps.html
http://www.geocities.com/m15399/piston.html
http://www.sscentral.org/tech/mods/ans.php

cobralex297
Posts: 73
Joined: Sun May 06, 2007 4:49 am

hmm

Post by cobralex297 » Sat Jul 07, 2007 3:56 am

Offhand, thinking about it, a lot of the things that are negative aspects of the extremely powerful guns like the CPS2000, 2500 would not matter if you're only going to be fighting for around a minute, on the water. Both of those can be pushed to 40+ feet, and the 2000 will hit and possibly pass 50.

Just an idea.
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2700,3000,SplashZooka,XP105,150,20,
215,220,240,270,75,90,ss30,60,XTC,
SC600,BigTrouble,PowerPak,TripleCharge

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