Topic: "water fog"...any ideas? (Read 11638 times)

Patrick Henry · « **on:** December 14, 2011, 02:41:16 pm »

The Stealth concept destroyer I'm building would apparently have had the capability to produce a cloud of "water fog" to provide cover for infra red hotspots, and of course I'd like to try and reproduce this in my boat...as you do.

I take it that "water fog" means a very fine cloud of water spray over the superstructure...?

Any ideas as to where I should start building this?

Rich

MikeA · « **Reply #1 on:** December 14, 2011, 03:23:46 pm »

how are you going to do it?

Patrick Henry · « **Reply #2 on:** December 14, 2011, 03:25:57 pm »

Quote from: U-33 on December 14, 2011, 02:41:16 pm

Any ideas as to where I should start building this?

MikeA · « **Reply #3 on:** December 14, 2011, 03:37:04 pm »

well you say where lol not how. use a smoke generator, that might work.

Patrick Henry · « **Reply #4 on:** December 14, 2011, 03:40:28 pm »

I need to spray a fine mist of water, not make a smokescreen....

offshore1987 · « **Reply #5 on:** December 14, 2011, 03:42:27 pm »

so your going to spray your model with water hmm

nice idear n all but isnt it a step to far?

Patrick Henry · « **Reply #6 on:** December 14, 2011, 03:47:55 pm »

I don't know...is it? They go out in rain, so a mist of water should be ok.

catengineman · « **Reply #7 on:** December 14, 2011, 03:49:47 pm »

Not sure if it will work the way you want
take an electric hp fuel pump and a few injectors then it to work via a switch.
Now if you use the injectors from a petrol engine you will need to either mod them to allow constant misting or set up a pulse supply to trigger them to fire in quick succession.

just a quick thought for you to ponder

MikeA · « **Reply #8 on:** December 14, 2011, 03:50:05 pm »

you wont see a fine mist of water. If you look at the foggy from mmb it uses water, if you plump it several outlets around the boat the mist wont congregate to make a smoke a affect but a mist one

you would need dry ice to make a smoke screen

Patrick Henry · « **Reply #9 on:** December 14, 2011, 03:54:08 pm »

Quote from: catengineman on December 14, 2011, 03:49:47 pm

Not sure if it will work the way you want
take an electric hp fuel pump and a few injectors then it to work via a switch.
Now if you use the injectors from a petrol engine you will need to either mod them to allow constant misting or set up a pulse supply to trigger them to fire in quick succession.

just a quick thought for you to ponder

That's food for thought...thank you, sir.

Quote from: Mad_Mike on December 14, 2011, 03:50:05 pm

you wont see a fine mist of water. If you look at the foggy from mmb it uses water, if you plump it several outlets around the boat the mist wont congregate to make a smoke a affect but a mist one

you would need dry ice to make a smoke screen

Why won't I see a fine mist of water?

And I don't want to make a smokescreen....

Bryan Young · « **Reply #10 on:** December 14, 2011, 04:00:37 pm »

Sounds like an upgraded "pre-wet" system. Great in theory, not so easy in practice. BY.

Patrick Henry · « **Reply #11 on:** December 14, 2011, 04:03:08 pm »

A 'pre wet' system...is that what they use on car ferries, BY?

MikeA · « **Reply #12 on:** December 14, 2011, 04:05:04 pm »

it wont make a smoke screen. Im not talking about a smoke screen.

fogger units use vibrations to turn water into a dense mist.

http://www.maplin.co.uk/mini-fogger-mist-generator-35215

theres some links down the side of this page how it works:

http://www.steammasterunit.com/#/features/4543003949

if you were to take the outlet of the say mmb foggy unit that is usually used to make a smoke stack and plumb it into serveral outputs instead of making a thick fog the outputs would make a transparent mist because they would spread it out and not concentrate it.

Patrick Henry · « **Reply #13 on:** December 14, 2011, 04:09:04 pm »

Hmm...

MikeA · « **Reply #14 on:** December 14, 2011, 04:11:17 pm »

mmb make them and run off dc of course. theres a vid at the bottom of the page of them working, look for foggy smoke generator:

http://www.marksmodelbits.co.uk/

Netleyned · « **Reply #15 on:** December 14, 2011, 04:18:05 pm »

Prewetting is a system used on warships and RFA's to shroud the ship in water sprays whilst transiting a nuclear fallout area.

Ned

bikerdude666 · « **Reply #16 on:** December 14, 2011, 04:19:49 pm »

Which stealth destroyer are you making? I have a look at plans for a couple of stealth ships on Cornwall model boats ages ago, cant remember the names now.

Patrick Henry · « **Reply #17 on:** December 14, 2011, 04:26:10 pm »

Quote from: netleyned on December 14, 2011, 04:18:05 pm

Prewetting is a system used on warships and RFA's to shroud the ship in water sprays whilst transiting a nuclear fallout area.Ned

Got it, thanks Ned.

Quote from: bikerdude666 on December 14, 2011, 04:19:49 pm

Which stealth destroyer are you making? I have a look at plans for a couple of stealth ships on Cornwall model boats ages ago, cant remember the names now.

It's a Danish concept Stealth boat, Derrick...never actually left the drawing board...(I like building concept boats, nobody can tell you that you've done this bit or that bit wrong if it never existed)

I'll take some photos and post them up here later on.

Rich

bikerdude666 · « **Reply #18 on:** December 14, 2011, 04:44:08 pm »

That's why I liked the look of them, think it was RN concept ships, spectre or something, liked the idea of making a modern ship and then fitting some classic battleship turrets lol

pics would be good, as for the 'water fog' I'd tend to agree that a normal smoke unit with multiple small outlets would give the mist/fog effect rather than smoke.

Patrick Henry · « **Reply #19 on:** December 14, 2011, 04:50:53 pm »

I've got the article on the Spectre build, another one on a catamaran named HMS Cougar, both concept warships...then there's the Sea Wraith, which I believe was a Vosper Thornycroft design(?)

This one is a catamaran hull...that's why I needed your two motors!

bikerdude666 · « **Reply #20 on:** December 14, 2011, 05:16:09 pm »

Ah right, was gonna ask if that's what they were going in. Not seen the catamarans, want to get the concept trimaran, and whatever other concepts I can find.

Bit of a cheek but I don't suppose you could scan the spectre article?

sorry I'll stop hijacking now....

Patrick Henry · « **Reply #21 on:** December 14, 2011, 05:48:01 pm »

No problem...do I have your email address?

bikerdude666 · « **Reply #22 on:** December 14, 2011, 07:35:55 pm »

no I'll PM it to you...

Patrick Henry · « **Reply #23 on:** December 14, 2011, 07:36:58 pm »

Okay cokay...

stevesteve · « **Reply #24 on:** December 14, 2011, 10:15:35 pm »

the maplin fogger has a multi plug that you would have to work out the pinouts on. on ebay they have 24v units that have a standard connector on. if you google 24v fogger on dc you will find that people are saying that they will run just fine on dc althought hey are designed to run on ac.

http://www.ebay.co.uk/itm/Mister-Mist-Maker-1-LED-Reptile-Vivarium-Halloween-/110438405605?pt=UK_Pet_Supplies_Reptiles_Spiders_Insects&hash=item19b6a455e5

steve.

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Author Topic: "water fog"...any ideas? (Read 11638 times)

Patrick Henry

MikeA

Patrick Henry

MikeA

Patrick Henry

offshore1987

Patrick Henry

catengineman

MikeA

Patrick Henry

Patrick Henry

MikeA

Patrick Henry

MikeA

bikerdude666

Patrick Henry

bikerdude666

Patrick Henry

bikerdude666

Patrick Henry

bikerdude666

Patrick Henry