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    Friday's Child Fairy Huntsman 31
    by steve-d πŸ‡¬πŸ‡§ ( Chief Petty Officer 2nd Class)
    πŸ“£










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    5 Posts 27 Comments 16 Photos 10 Likes
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    πŸ“ mini update
    8 months ago by steve-d ( Chief Petty Officer 2nd Class)
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    I now have the larger prop shaft installed. Waiting for the glue to set so I can align and mount the motor.
    I need to fit a water pickup for cooling the motor and ESC. Are there any rules/tips on where it should be positioned? My first though was anywhere facing forwards as it will only really need cooling when running at speed. Any thoughts.

    Next is the paint. I'm trying to match the colours which were a marine 'Toplac' paint but at Β£25 for the smallest can x 3 colours I need a different route. Paint shops failed to find a match so am going to an automotive paint supplier who assure me they can match anything. So now to the question...what type of paint do I go for, acrylic, cellulose, water based etc.?

    Steve

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    πŸ’¬ mini update
    8 months ago by Wingcoax ( Petty Officer 2nd Class)
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    This has been asked before, But, normally installed just after the prop and offset to one side.

    prop
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    πŸ’¬ mini update
    8 months ago by Brianaro ( Petty Officer 1st Class)
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    Hi Steve. The paint used by Fairey was international Paints Oxford Blue 105, if you contact them they should send you a colour chart which you can then use as a colour reference elsewhere. if you decide to use international Paints, it’s available from most chandlery shops

    paint
    paints
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    πŸ“ Cooling coil
    8 months ago by steve-d ( Chief Petty Officer 2nd Class)
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    Started making a cooling coil for the motor.
    Should I solder the coils together? Would make a neater and more stable installation.

    Steve

    cooling
    motor
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    πŸ’¬ Cooling coil
    8 months ago by Donnieboy ( Warrant Officer)
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    All the cooling coils I have seen,do not have the coils soldered together.On all the ones I have weren't soldered.They all provide the cooling very well.

    cooling
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    πŸ’¬ Cooling coil
    8 months ago by mturpin013 ( Lieutenant)
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    I agree not necessary to solder, as long as the coils are tight with no gaps

    cooling
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    πŸ’¬ Cooling coil
    8 months ago by steve-d ( Chief Petty Officer 2nd Class)
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    Too late...all done now.
    I just thought it would be more stable.
    Steve

    cooling
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    πŸ’¬ Cooling coil
    8 months ago by RNinMunich ( Fleet Admiral)
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    Don't suppose it will matter much Steve, since the cooling comes from the wet stuff and not air flow. And as you say it makes the assembly more stable. Cheers, Doug 😎

    cooling
    matt
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    πŸ’¬ Cooling coil
    8 months ago by ChrisF ( Petty Officer 1st Class)
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    Good to see another Fairey. What size is your Huntsman? I'm busy scratch building three different Faireys at the moment and the Huntsman 31 will be a future project.

    I've got one of the Precedent 46" but it's too big and heavy really.
    Chris

    huntsman
    cooling
    precedent
    build
    scratch
    fairey huntsman
    scratch build
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    πŸ’¬ Cooling coil
    8 months ago by steve-d ( Chief Petty Officer 2nd Class)
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    This one is 31".
    Making things difficult for myself by trying to model it on a specific boat. Having said that the building is the bit I like best.

    Steve

    cooling
    model
    build
    boat building
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    πŸ’¬ Cooling coil
    8 months ago by ChrisF ( Petty Officer 1st Class)
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    Hi Steve - yours is 1:12 then which is the scale I'm building all mine at.

    Yes, the building is the best bit (and the drawing in my case) as I doubt I will use them that much.

    Where did you get your bollards etc. from as I shall need to start getting those bits and pieces together.

    Chris

    cooling
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    1:12 scale
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    πŸ’¬ Cooling coil
    8 months ago by TOWN3810 ( Leading Seaman)
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    Hi it might be the wine but it appears you have put the cooling coil over the rotating rotor of the brushless motor should be fun when you connect up and run. if it is the wine I will shut up Cheers Ian

    cooling
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    πŸ’¬ Cooling coil
    8 months ago by steve-d ( Chief Petty Officer 2nd Class)
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    You are correct the coils goes over the body of the outrunner motor but does not touch. it was initially formed around a metal tube but when mounted on the motor mount there is a 'cereal packet cardboard' thickness of clearance around the body of the motor.
    Steve

    cooling
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    motor mount
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    πŸ’¬ Cooling coil
    8 months ago by BOATSHED ( Warrant Officer)
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    I have one on a 540 brushed motor which is a reasonably tight fit on the motor. Also I have a Graupner on to fit Graupner 400 speed motor and that again is a quite tight fit. There is no gap between the motor and the coil. it is acting as a heat sink so therefore surely it should touch to disperse the heat with the water flowing through it. if it isn't in contact with it then doesn't it make it pointless putting it on there. Also wont it make it rattle about when the motor is running and the boat hopping about on the water ??

    cooling
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    πŸ’¬ Cooling coil
    8 months ago by ChrisF ( Petty Officer 1st Class)
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    Yes, that is what was thinking. Normally with brushless motors it is the motor mount that is water cooled which draws the heat out of the motor. it may not need cooling anyway.

    cooling
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    πŸ’¬ Cooling coil
    8 months ago by RNinMunich ( Fleet Admiral)
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    Thanks Boatshed & Chris, those were exactly my thoughtsπŸ‘
    Glad you said it first 😁
    Without direct contact between heat source and sink it's a bit of a waste of time and effort.πŸ€”
    Cheers, Doug 😎

    cooling
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    πŸ’¬ Cooling coil
    8 months ago by Dave J ( Able Seaman)
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    As long as the coil toutches the motor you will be ok if it is NOT touching then simply start agaain as it will b a waste of time.............................................With regards to your painting question simplest way is to go to halfords and buy grey primer with is acrylic....if it is a wooden hull then you WILL NEED to use a coat of Halfords or Equivellent car laquer to seal the primer underneath ...rub down with 800 DRY then put your grey on top of it....reason for this is simple the primer is porous so you will need to stop water getting at the wood,if it is GRP then no need for this

    Dave

    paint
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    acrylic
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    πŸ’¬ Cooling coil
    8 months ago by RNinMunich ( Fleet Admiral)
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    Hi Dave,
    the whole point here is that it's an outrunner motor so if the coil touches the rotating case things'll get very interesting and exciting 😲
    Cheers, Doug 😎

    cooling
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    outrunner
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    πŸ’¬ Cooling coil
    8 months ago by BOATSHED ( Warrant Officer)
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    Why would anyone even try fitting a water cooling coil on an out runner ?????? I didn't realise that an out runner was what was going to be used. is an out runner worth fitting in a model boat, surely an in runner is a far better option.

    cooling
    model
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    8 months ago by steve-d ( Chief Petty Officer 2nd Class)
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    I'm new to this and was told by the guy who gave me the motor that this was the thing to do. He says the coil still provides cooling and says the warm water coming from the stern is all the evidence needed.
    We will see if he is right.
    Steve

    cooling
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    πŸ’¬ Cooling coil
    8 months ago by BOATSHED ( Warrant Officer)
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    I cannot see how you can mount the water cooling coil safely onto a out runner motor. Near impossible I would have thought. if there is too much vibration then I would think that it would rub on the motor and wear a hole in it and flood the boat or just jam up the motor. I would go for an in runner. Much more practical in a boat in my thoughts.

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    8 months ago by ChrisF ( Petty Officer 1st Class)
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    An outrunner is better for this type of boat as it is more torquey. if cooling is needed (and it may not) just use a proper water cooled motor mount. Chris

    cooling
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    πŸ“ New bits
    8 months ago by steve-d ( Chief Petty Officer 2nd Class)
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    Right, just been given some nice bits.
    Brushless outrunner FUSION 3535/05 1500kv
    ESC Top Edge 60A water cooled SC060B
    Plus a coupling.

    So now to go shopping.
    Which make of Lipo3 and from where?
    What type and size of brass prop?
    Where to buy silicon wires and the fancy gold terminals?

    Steve

    prop
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    πŸ’¬ New bits
    8 months ago by Rookysailor ( Chief Petty Officer 1st Class)
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    Hi Steve, The lipo situation is I always use HobbyKing https://hobbyking.com/en_us/new-items.html?___store=en_us, a good choice and very fast delivery, regarding prop and size, on my huntsman I use a three bladed prop in brass 30mm M4, and silicon wires, loads of places but I always use The Component Shop https://www.componentshop.co.uk/, hope this is of some use to youπŸ˜‰

    cheers Peter
    https://hobbyking.com/en_us/new-items.html?___store=en_us,
    πŸ”—
    https://www.componentshop.co.uk/,
    πŸ”—

    huntsman
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    8 months ago by Dave J ( Able Seaman)
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    Component shop without a doubt...fast del and cheap as chips and Quality products


    Dave

    component shop
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    πŸ“ Sanding done
    9 months ago by steve-d ( Chief Petty Officer 2nd Class)
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    Most of the sanding is now done and the not so easy task of getting the propshaft and tube out (M3 so not really man enough).
    Bought loads of bits including the grab rails I've fitted.
    Bollards, cleats, capstan, anchor, chain, instruments,nav lights etc all boxed up ready to fit after paint.
    Also the crew has arrived from China.

    But, I have failed to find a VHF 'White Stick' style antenna anywhere....anyone seen one in any of the catalogues?

    Steve

    paint
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    πŸ’¬ Sanding done
    9 months ago by RNinMunich ( Fleet Admiral)
    Flag
    Hi Steve, for the 'white stick', the VHF IMM band antenna, any old rod will do.
    The real ones are copper wire covered in glass fibre. Length of the real thing is about 107cm including the coaxial end feed connector at the bottom.
    They are usually mounted on a 'scaffold' type pole with two U clamps.
    On pleasure craft they are often just whip antennas approx 1m length, much much cheaper than the pro jobs πŸ˜‰, with a dome shaped mounting and the antenna cable is fed into it through the deck/roof it is mounted on.
    Alternatively there is a side connector in the mount with an 'N' Type coaxial socket.
    Make a whip out of piano wire (with a ball on the top to protect your eyeballs!πŸ˜†) and you could use it as your RX antenna - about the right length.
    Construction coming on nicely.πŸ‘
    Cheers, Doug 😎

    connector
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    πŸ’¬ Sanding done
    9 months ago by steve-d ( Chief Petty Officer 2nd Class)
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    Those antenna are normally tapered so I was hoping to find a soft plastic one which would take a few knocks. I could do one in piano wire but cant think of a flexible way of achieving the taper. Perhaps I am making to much of it and a piece of piano wire covered in white heatshrink will do and the lack of taper won't notice.

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    πŸ’¬ Sanding done
    9 months ago by RNinMunich ( Fleet Admiral)
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    Hi Steve, many real IMM rod antennas I worked with were not tapered.
    So any metal / plastic rod of suitable diameter painted white would do.
    The relatively short (1m) whips are not always tapered either.
    If you go piano wire & heatshrink you could put a nice sweep-back into it by lightly bending it back while shrinking. When cool it will hold the shape.

    Here's a link to the supplier we most often used for the professional 'stick' (we called 'em rod) VHF IMM antenna, with a drawing.
    http://www.aas.de/special-antennas/vhf-tx-rx-antennas/104-st...
    Memory playing tricks on meπŸ€”it's actually about 141cm top to bottom.
    Cheers, Doug 😎
    Here's a simple 35" stainless steel whip, also not tapered
    https://www.ebay.com/itm/Auto-Marine-Band-Antenna-35in-VHF-C...
    http://www.aas.de/special-antennas/vhf-tx-rx-antennas/104-staisf.html
    πŸ”—
    https://www.ebay.com/itm/Auto-Marine-Band-Antenna-35in-VHF-Car-Radio-Boat-6db-Stainless-Steel-Whip-PL-259-/222260516328
    πŸ”—

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    πŸ’¬ Sanding done
    9 months ago by steve-d ( Chief Petty Officer 2nd Class)
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    Just found an answer to my antenna 'White Stick'.
    At work we use a WD40 type fluid and the can comes with a tube you can use with the nozzle.
    Some new cans came in and they have nice white tubes...result.

    Steve

    sanding
    nozzle
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    πŸ’¬ Sanding done
    9 months ago by RNinMunich ( Fleet Admiral)
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    Shucks! Mine are all red 😭
    BUT; just found some 1 and 2mm white styrene tooob in the stash 😊
    Guess they'll do for my T45, Belfast and Illustrious.
    Thanks for the prompt Steve1
    Cheers, Doug 😎

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    πŸ“ Friday's Child Fairy Huntsman 31
    10 months ago by steve-d ( Chief Petty Officer 2nd Class)
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    This is a refurb. I built her from MM plan 1061 many years ago and recently found her in the loft so she has likely been up there for 19 years. The basic construction is OK but the paint is peeling and large chunks came off when I tried to pull her out of the carry cradle.
    She had no name and was in a basic colour scheme but I plan to now paint and detail her as Friday's Child which is registered Southampton and lives in Yarmouth IOW.

    I've started sanding but it is going to take a while.

    huntsman
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    sanding
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