Topic: Hull advice (Read 1832 times)

lakeshore · « **on:** April 09, 2012, 09:17:56 AM »

Thinking of purchasing one of these hulls made in GRP 49'' long 11'' wide and 8'' deep, any idea's as to what the design is as the maker not sure of what plan if any the hull is from.

pompebled · « **Reply #1 on:** April 09, 2012, 09:27:54 PM »

To be honest, I have no idea what the picture is supposed to show...

Do you have a link to the hull in question?

Regards, Jan.

tugboyben · « **Reply #2 on:** April 09, 2012, 10:17:04 PM »

I think this is the hull i may be wrong

http://www.ebay.co.uk/itm/LARGE-BOAT-HULL-49-GRP-/200726038530?pt=UK_ToysGames_RadioControlled_JN&hash=item2ebc344802

Jason

Mad_Mike · « **Reply #3 on:** April 09, 2012, 10:51:04 PM »

defiantly that hull with the image flipped for some reason. what do you think it would suit as lakeshore?

lakeshore · « **Reply #4 on:** April 10, 2012, 06:50:36 AM »

Not sure what the hull is suitable for, thats why I came into the forum to ask for advice.

Mad_Mike · « **Reply #5 on:** April 10, 2012, 11:00:58 AM »

i know that fella but i meant from an artistic perception. It could be anything, its not a trawler or tug because the prop and stern is wrong. and i doubt it a military vessel it looks like some kind of small launch or day fishing boat.

Tug---Kenny · « **Reply #6 on:** April 10, 2012, 11:02:54 AM »

Have you enquired from the builder what he copied it from ?

ken

lakeshore · « **Reply #7 on:** April 10, 2012, 11:31:06 AM »

I have asked the builder what plan or plug it was made up from, but he says he cant remember only that it was for general use when he got it and that it should be suitable for Liner - Car Ferry - Warship.

John.

Colin Bishop · « **Reply #8 on:** April 10, 2012, 12:32:02 PM »

Quote

that it was for general use when he got it and that it should be suitable for Liner - Car Ferry - Warship.

Which is a nonsensical statement! Surprised he didn't suggest rowing boat as well..... (or even dog bath)

malcolmfrary · « **Reply #9 on:** April 10, 2012, 09:26:56 PM »

Quote

he says he cant remember only that it was for general use when he got it and that it should be suitable for Liner - Car Ferry - Warship.

Quote from: Colin Bishop on April 10, 2012, 12:32:02 PM

Which is a nonsensical statement! Surprised he didn't suggest rowing boat as well..... (or even dog bath)

Quite. I suspect that the "maker" isn't. If I had made something that size, I am very sure that I would have had a use in mind, and I would certainly remember what that use was.

NickelBelter · « **Reply #10 on:** April 11, 2012, 02:49:32 AM »

He might have laid up the hull but he definitely did not do the mould, otherwise he'd know what it was meant to be.

Strangely enough the two most suitable ideas aren't listed: medium size patrol boat or large scale cabin cruiser.

lakeshore · « **Reply #11 on:** April 11, 2012, 02:36:19 PM »

Decided to go ahead and order one in any case, made mine in white gellcoat, pics of finnished hull to follow.

John.

lakeshore · « **Reply #12 on:** April 11, 2012, 02:37:48 PM »

another.

John

lakeshore · « **Reply #13 on:** April 11, 2012, 02:39:25 PM »

another.

John.

SunnyBob · « **Reply #14 on:** April 11, 2012, 06:55:18 PM »

well the front and middle are definitely most like a cabin cruiser, but that rear is very deep and rounded. i would think a single engine and rudder wold be best, other wise the slope is going to make rudder mounting extremely difficult.

Norseman · « **Reply #15 on:** April 11, 2012, 07:29:33 PM »

Hey Sunnybob - when I saw you here I was expecting to see a sig pic test 5

Dave

SunnyBob · « **Reply #16 on:** April 12, 2012, 07:25:05 PM »

Quote from: Norseman on April 11, 2012, 07:29:33 PM

Hey Sunnybob - when I saw you here I was expecting to see a sig pic test 5

Dave

check out the "insert image " thread, I got hi jacked, robbed, and ended up with a redex for my troubles.

but I've mastered the old insert here trick.....,

you can see why I think this hull is too rounded on the stern for a cabin cruiser, or as mine was originally labelled when made in 1949, a "Gentlemans yacht"

Artistmike · « **Reply #17 on:** April 13, 2012, 08:47:30 AM »

Quote from: SunnyBob on April 12, 2012, 07:25:05 PM

as mine was originally labelled when made in 1949, a "Gentlemans yacht"

And a very lovely looking yacht that is too ! I've not seen any details about it, what sort of size is it may I ask.

SunnyBob · « **Reply #18 on:** April 13, 2012, 05:02:42 PM »

there is (or there was) quite a history on here about the boat. Try searching for "gwen eagle"

its a 1/12th scale, of a 40 ft motor cruiser. my dad built it 50 years ago but never got the internals done. I finally got it in the water 5 years ago. Brought it to Cyprus with me 4 years ago, and have had horrendous problems ever since. Its made of mahogany strip planking, and the summer heat here opens the planking cracks. I've just fibreglassed inside and out, and fitted new shorter prop shafts.
the blue paint is not good, but at this stage i just want to get in through our august temps (40c most years, went to 45c 2 years ago).
If it gets through this summer without cracking, i shall repaint to a better standard.

Artistmike · « **Reply #19 on:** April 13, 2012, 05:38:01 PM »

Well, it's a beautiful looking model and you're right, the history on here is unavailable unfortunately using the normal search methods after our recent forum problems. However having done a "Google" I managed to find your original thread.... http://www.modelboatmayhem.co.uk/forum/index.php?topic=10059.0

That is a model I'd love to have a shot at ...... totally classic lines and your father made a beautiful job of it.

SunnyBob · « **Reply #20 on:** April 13, 2012, 05:52:10 PM »

Quote from: Artistmike on April 13, 2012, 05:38:01 PM

Well, it's a beautiful looking model and you're right, the history on here is unavailable unfortunately using the normal search methods after our recent forum problems. However having done a "Google" I managed to find your original thread.... http://www.modelboatmayhem.co.uk/forum/index.php?topic=10059.0

That is a model I'd love to have a shot at ...... totally classic lines and your father made a beautiful job of it.

the forum is very strange at the moment. i just did a search for gwen eagle and got nothing. then I tried again with Gwen Eagle (capitals) and got everything.
When I finally got info about it, I managed to get a set of plans from a company in scotland. When they arrived they were not a true 1/12th, the plan gave a boat about 30". i took them to a copy shop and asked them to scale it up to the full 39". Man, what a project that was! It took them about 6 sheets of AO to finalley get the correct size. I helped dad when I was around 10 years old. We steamed every plank over a large saucepan of boiling water. drove my mum crazy

lakeshore · « **Reply #21 on:** April 15, 2012, 09:10:46 PM »

Well the hull arrived a couple of days ago, quite a nice gellcoat and overall a good fibreglass thickness. The only problem is that it has a slight twist in it when looking along the gunwhales, so went off to good old B&Q and got a 50''x24''x1'' mdf building board. I intend to clamp the hull down to the board slightly using 5mm threaded bar and a ply block over the gunwhales to straighten the hull out. While in this jig I intend to fit the bulkheads at least the main three. I thought that if the bulkheads were fitted while the hull is clamped in the jig then any twist would be built out of it (hopefully). Basically anyone done this to get a twist out or is there a better way of doing it ??.

John.

Colin Bishop · « **Reply #22 on:** April 15, 2012, 09:30:51 PM »

Locking the hull in place is necessary. Then go over it with a hot hairdryer until it is quite warm, almost too hot to touch and then let it cool off in which case it should settle into the corrected shape.

A bit of distortion in GRP hulls as they cure is quite common but the heat treatment will usually sort it out.

Colin

nemesis · « **Reply #23 on:** April 16, 2012, 06:45:16 PM »

Hi, Looking at the length to beam ratio together with the stem & keel it could be a transomed fishing boat hull. Nemesis

lakeshore · « **Reply #24 on:** April 20, 2012, 07:26:12 AM »

Thank's Colin

managed to get the twist out, clamped in the jig using the heat treatment no problem, the question I have now is how to accurately measure the inside of the hull for the bulkhead templates. I have made a couple using cardboard but am having problems with the third, just wondered if there was an easier way of doing this.

John

Colin Bishop · « **Reply #25 on:** April 20, 2012, 09:19:24 AM »

John,

You could try a flexible curve ruler - very useful. Cheapest type is here:

http://www.theworks.co.uk/Flexible-Curve-Ruler/5052089011489.html

Colin

rmaddock · « **Reply #26 on:** April 20, 2012, 09:53:46 AM »

I've used a contour gauge. It's a lot of little metal/plastic strips next to each other that slide in and out. It takes the curve and you can then transfer it. I've used in on my hull.

That was as clear as mud....here's a link to one: http://www.screwfix.com/p/forge-steel-profile-gauge-5/22527

lakeshore · « **Reply #27 on:** April 20, 2012, 10:15:22 AM »

Hi Both

tried the contour guage method the other day (poor results) the flexible curve ruler seems interesting though.

John.

Norseman · « **Reply #28 on:** April 20, 2012, 03:11:40 PM »

Hi

You could cut a stiff card as close to the shape as practical - it doesn't need to fit tightly.
Put in place and sellotape further bits of scrap card onto that - in no time you will have
the shape you need - then you can transfer it elsewhere.

Dave

Islander51 · « **Reply #29 on:** April 21, 2012, 08:00:19 AM »

I use a piece of soldering wire, and then trace around it or lightly spray over it to transfer the shape.
Thicker wire usually works better, depending on the angles in there.
Works well for making stands too.

Edward.

lakeshore · « **Reply #30 on:** April 21, 2012, 04:13:57 PM »

Managed to get a 40cm flexible curve from WH Smith today, now that's an impressive piece of kit to have and so accurate £3.99 well spent me thinks.

John.

Norseman · « **Reply #31 on:** April 21, 2012, 05:33:57 PM »

Got a pic or link? Not seen one.

Dave

Netleyned · « **Reply #32 on:** April 21, 2012, 05:37:28 PM »

Link on reply 25 to a similar and cheaper one

Ned

lakeshore · « **Reply #33 on:** April 21, 2012, 07:46:23 PM »

Quite a few of them on ebay up to 60cm long but wanted one asap to be able to get the bulkheads band sawed out and fitted.

John.

Netleyned · « **Reply #34 on:** April 21, 2012, 07:55:09 PM »

WHS or the Works in toon centre should have them

Ned

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Author Topic: Hull advice (Read 1832 times)