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Old Sep 11, 2007, 02:24 PM
MILLERTIME is offline
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Taking care of the pond.
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Build Log

Fire monitor


Im building a fire monitor for my tugboat. I started with a piece of 5/8 brass rod, I drilled a 3/16 hole off center ( see picture ). I then milled it to the shape I wanted, and drilled holes for the brass tubes. Using a parting tool on my lathe I cut it into two pieces.
For the base I used some brass fittings I had in my tool box. I put a can nut on the brass fitting and drilled a 3/16 hole through it. Using a lathe I put a taper on the base bottom and top of the fitting. The cap nut will hold the base to the deck. I then added a handle made from !/16 brass wire. I was going to paint it red, but it looks so good polished I might just clear coat it.

Don M.
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Old Sep 11, 2007, 02:46 PM
keith S is offline
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r/c ships and workboats
looks verry nice. Polish to a sheen and clear coat!
Old Sep 11, 2007, 02:58 PM
Kmot is offline
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Grumpa Tom
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Pretty cool, Don!
Old Sep 11, 2007, 04:09 PM
Capt.Crash is offline
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**NOT GUILTY**
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Real purty Millertime


I got my store bought monitor kit built and placed on deck with the plumbing in the monitor done but have not found a 6 volt pump yet...nor I have I decided if I want to attach the chain drive system to be able to turn the monitor. I will need a 6 channel radio to add that function. I would be curious as to how/where everyone is putting the intake hole in the hull and what is being used to screen the intake. Suggestions for a light, but decent power (5 ft discharge stream or more) 6 volt pump would be nice too.

Capt. Slick
Old Sep 11, 2007, 07:31 PM
Brooks is offline
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Automobile windshield washer pumps can run on 7.2 volts. If you took your 6 volt battery to the autoparts store, perhaps they would let you try a pump.

For my tug's intake, I bought some brass screen, brass tubing, and a big brass washer at the hardware store. I soldered the washer to a short piece of brass tube, then glued the screen on the washer with epoxy. The washer is mounted on the outside of the hull - CA glue did not stay stuck, but the inside is sealed with Marine Goop, so no leaks. The only hard part is getting the silicon hose over the tube, be sure to find some larger/appropriate diameter hose if you go my route. Regular blue silicon model airplane fuel line is fine for pump to monitor, but of course the larger the tube, the more water output. Squirt distance depends on nozzle orifice size - 10' easy with this setup - actually easier to put out a fire with a shorter squirt (bigger nozzle).
Old Sep 11, 2007, 08:59 PM
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billg

water pump


SONIC-TRONICS makes model airplane fuel pumos in both 6 volt and 12 volt. I use a 6 volt in both of my fireboats,powered with a 7.2 volt model car battery. The extra voltage doesn't hurt it, as it's only on for a short time.
Old Sep 11, 2007, 09:24 PM
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Wonder if one of these pumps would work for fire monitors. It is designed for a camping shower.
The 6 volt replacement water pump includes a 4 foot power cable, and a watertight battery case that holds 4 "D" batteries.
Item# 1067
http://www.zodi.com/web-content/Cons...cessories.html
Old Sep 11, 2007, 10:52 PM
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Quote:
Originally Posted by Hoghappy
Suggestions for a light, but decent power (5 ft discharge stream or more) 6 volt pump would be nice too.

Capt. Slick

Graupner do a nice 6V Pump (Part #1953) that might fit the bill nicely.

A little expensive over wiper-washer pumps but the quality is there..
Old Sep 21, 2007, 11:28 PM
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Taking care of the pond.
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More work on the tug, mounted the monitors and ran the tubing.
I used a mini servo to control the monitors. I am using a DX6 for the tug.
Old Sep 21, 2007, 11:36 PM
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Grumpa Tom
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Geez, never realized how small they were till now. That is gonna be so cool on the Atlantic tug!
Old Sep 22, 2007, 12:06 AM
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Sea Dragon-Lover
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I like the rotating bits...
Old Sep 22, 2007, 10:09 AM
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Very neat. The monitors will squirt in different directions, rather than in parallel, as you move the servo, it appears.
Old Sep 22, 2007, 10:28 AM
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That is really a neat setup. Can't wait to see how the pump sets up. Does anyone use a bilge pump in their models? I see severl different styles on Naval Combat sites. One of them may work for the fire boat.
Old Sep 22, 2007, 10:30 AM
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Brooks; Are there any pictures of your avatar boat on this forum? I'd like to see more of that ship. Pete


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