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Author Topic: Seaplane Tender mm1391  (Read 5158 times)

Nordlys

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Seaplane Tender mm1391
« on: February 13, 2017, 05:26:07 pm »

I have been looking over the Plan for this very nice RAF Launch and while I must say the Plans do look most promising from a beginners view,
I am struggling a little to determine if both the Cabin and Wheelhouse superstructures lift off the deck or is it just the roofs that lift off?
If anyone here has this model suffice to say I would be most grateful if you could inform me of the arrangement.
Thanks,
Nordlys




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John W E

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Re: Seaplane Tender mm1391
« Reply #1 on: February 13, 2017, 07:02:56 pm »

Hi ya there Nordlys

Not having build this particular model myself - but - I do have the article & small plan, written/drawn by John Pritchard - in Model Boats magazine as reference - along with several photographs on the ww web.   

If I myself were building this particular model, I would make it so that the whole cabin and wheelhouse lift off as one, revealing open access to the internal of the hull.  Quite easy to do and I would think a lot easier than making the cabin roof & wheelhouse roof lift off separately.

John

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Nordlys

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Re: Seaplane Tender mm1391
« Reply #2 on: February 13, 2017, 07:21:35 pm »

Hello Bluebird,


I was wondering if you had made this model while reading your most invaluable  build blog for the Air Sea Rescue launch which
I am finding so useful and similar in construction (although I haven't started yet)!
Yep, I think it a good idea to combine the two parts as you suggest and lift off as one.


I'm hoping you are right as well as optomistic in that it should be fairly easy to do. I presume it would make sense to fit a comb all the way
round the area for the cabins to fit over? I did that once with an RAF Pinnace that I built from plans but I'm not that expert really.


Anyway, Many Thanks.


N.
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raflaunches

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Re: Seaplane Tender mm1391
« Reply #3 on: February 13, 2017, 08:15:21 pm »

Hi Nordlys


Whilst I haven't built this particular launch I have with my Dad built a Walton 65ft ASRL, a 60ft GP Pinnace, a BPB Co 40ft Armoured Target Launch, and a Thornycroft 62ft Fast Motor Boat. These all benefited from removing the cabins completely. The roof removal only benefited the i/c engines because of their height but as Bluebird has said it's easier to take it all off.
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Nordlys

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Re: Seaplane Tender mm1391
« Reply #4 on: February 13, 2017, 08:46:06 pm »

Confirmed! I couldn't get better advice - than this.
The plan drawing doesn't make it clear at all what to do. Well, not clear to me...


Thanks for the info.
I expect to start my build in a week or so and hopefully post a few photo's as I go.


Incidentally , I think my Pinnace was the 60ft version. I have the plans somewhere.....
N,
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raflaunches

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Re: Seaplane Tender mm1391
« Reply #5 on: February 13, 2017, 09:00:35 pm »

There were three different pinnaces used by the RAF:


56ft (late 1920s-30s)
60ft (late 1930s-mid50s)
63ft (1950s-1980s)


I'll look forward to your build :-))
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TailUK

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Re: Seaplane Tender mm1391
« Reply #6 on: February 14, 2017, 09:27:19 am »

This was recently discussed in the following thread.  http://www.modelboatmayhem.co.uk/forum/index.php/topic,57098.msg594322.html#msg594322The subject of this plan is a Mk 1A Pinnace and is 41.5 ft long.

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Nordlys

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Re: Seaplane Tender mm1391
« Reply #7 on: February 14, 2017, 11:40:35 am »

Yes, thats correct and I was asking the original question  How long is the model , which I now know.
My further question on this thread was about whether this model is built with removeable Cabin and Wheelhouse or
is it just the roof lids that lift off.
I can't figure out from the plans the construction method but then this will be only my second scratch build.
I have by the way, decided to build the smaller Seaplane Tender model series 200.
Thanks...
N
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John W E

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Re: Seaplane Tender mm1391
« Reply #8 on: February 14, 2017, 12:15:23 pm »

From Model Boats mag September 1983

john
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Nordlys

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Re: Seaplane Tender mm1391
« Reply #9 on: February 14, 2017, 12:35:28 pm »

Thanks John  -  They could be helpful views for when I get underway with the Cabin area construction - a little way off yet!
I'm working my way thru' your build blog on the Whaleback which as I have said is so useful, in fact I probably wouldn't consider
building my Seaplane without your write up , in particular the diagonal planking work.
Its just the cabin and wheelhouse construction that is still my grey area.


Many thanks again.
Nordlys
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Nordlys

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Re: Seaplane Tender mm1391
« Reply #10 on: February 14, 2017, 04:47:11 pm »

This is my 60ft RAF Pinnace 1936 Grove & Gutteridge design made from plan sheet MM 1317
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John W E

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Re: Seaplane Tender mm1391
« Reply #11 on: February 14, 2017, 05:13:11 pm »

hi ya there Nordlys

Nice model there.  Was this your first scratch build?  I have found many a time, when talking to newbys at scratch building, they tend to try and overthink the build before they have actually began to make it.   Personally, when I first start to build a model, I work it in several stages - obviously I study the plans and I have in my head a rough outline of the model - where I would like to fit the motors, where I would like to fit the batteries - approx. how long the prop shaft should be and at this stage all of my thoughts are just theoretical and open to change at any time.    It is just to give me a rough ballpark along with how I am going to build the hull, what methods and what materials.   Also, like we have been discussing earlier on, accessibility into the model.

So, lets say I was going to build this particular model - this is how I would approach it now:

I have learnt through time to build a model on a building board, building the model upside down on there.   This has several advantages which have been discussed in other postings.    Mainly though, it keeps the model true from warping and also it keeps it safe and gives a steady platform on which to work.    Then I would consider the materials to build the model from and in this case, I would want to keep the hull reasonably light and therefore I would be looking at a good quality 4mm 5ply thick plywood - something like a Birch ply (good quality from say Mantura Modelling)

I would then be thinking of the keel which would also be of 4mm thick ply the same as the frames.   Either side of the plywood keel I would glue  4 x 4 Obechi square strip wood to strengthen the keel - this would be in between the frames.  This also gives the planking something to lie on and glue to when you are planking the hull.

From the keel to the chine - I would say put 3 stringers of 4 x 4 mm Obechi strip from the chine to the deck I would put 2 stringers in  -  same again 4 x 4 Obechi strip.   For the chine stringer and deck stringers I would laminate them from 2 pieces of 5 x 1.5 thick Obechi.  This obviously when all glued and assembled would be sanded.

I would diagonally plank using 10 mm wide x 1 mm thick - again Obechi/similar wood.

At this stage it would be entirely up to yourself whether you want to double diagonally plank, using a mahogany strip veneer.

Or, you could - as I have done on my last model - use the finest of fine (and it was like silk woven cloth)   This material is used in aircraft modelling to skim the wings and they say it isn't useful for model boats with it being that thin.  This I covered with ZPoxy Resin.

Just food for thought and I hope it inspires you and gets you on with the build  :-))

John
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Nordlys

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Re: Seaplane Tender mm1391
« Reply #12 on: February 14, 2017, 06:56:59 pm »

Hi John,


Yes this is my first and only scratch build and when I look over the single sheet plan that I worked from I'm amazed that I got to finish it!
I've sort of got the hang of working on a board (mdf x 18mm) . A bit rusty on the copying of frames /bulkheads.


You are quite right in your assumption that I might be overthinking the build 'cause I am! I think I'm trying to build too much in my head in advance and
snagging the awkward bits too soon as you point out.


I can advance comfortably using your blog  (and this posting) for a while then i'll hit a snag or two but thats much further down the road.
You do have to look ahead, for example I will need to get props and motors fairly early on in order to prepare for installation before/ or soon after planking.
Your post provides a good read - Im most grateful that you have taken the time.


Nordlys.
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BFSMP

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Re: Seaplane Tender mm1391
« Reply #13 on: February 15, 2017, 11:48:35 am »


I have been looking over the Plan for this very nice RAF Launch and while I must say the Plans do look most promising from a beginners view,
I am struggling a little to determine if both the Cabin and Wheelhouse superstructures lift off the deck or is it just the roofs that lift off?
If anyone here has this model suffice to say I would be most grateful if you could inform me of the arrangement.
Thanks,
Nordlys




I'm going round to my mate, neils later today and I know he built one for his daughter. i'll take some photos of it for you. if you'd like , with the cabins on and off.


Jim.
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Nordlys

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Re: Seaplane Tender mm1391
« Reply #14 on: February 15, 2017, 12:09:48 pm »

Jim,
That could be very useful - many thanks!
Nordlys....
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Re: Seaplane Tender mm1391
« Reply #15 on: February 15, 2017, 01:01:09 pm »



Hi, nordlys




Just got back, but if you want anymore I can get Neil to email them over to me.


Apparently this model was built from a fibre glass hull and superstructure that he made moulds from the original  wooden plank on frame hull and wooden superstructure as he wanted a sailing model.


A hull and superstructure in GRP can be bought from a gentleman called Steve Tranter? who neil gave the moulds too, a few years ago.

He tells me the dust is an added extra, but apparently some of the older members know of this?


Jim.
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Nordlys

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Re: Seaplane Tender mm1391
« Reply #16 on: February 15, 2017, 04:57:19 pm »

Hello Jim,
The photo's are excellent ! I'm studying them closely to see how he has built the removable Cabin and Wheelhouse
bits.
Very interesting and many thanks for all that work in posting too.
Nordlys.
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Daleb

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Re: Seaplane Tender mm1391
« Reply #17 on: February 16, 2017, 11:45:36 pm »

I'd so like to build a Seaplane Tender 200 type but I'm not anywhere near to doing a scratch build from plans yet but am hoping you'll do a build log Nordlys...  :-))
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John W E

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Re: Seaplane Tender mm1391
« Reply #18 on: April 01, 2017, 05:18:01 pm »

Hi there Nordlys
Whilst doing the annual muck shift around in my hobby room and trying to locate and sort out modelling magazines from various dropped positions; to assemble in some order I have come across Model Boats magazine August 1976 which may be of some interest to you.  Or, you may have the article already ‘Royal Airforce Launches of WW2’ the British Power Boat Company’s Seaplane Tenders by John Pritchard – short 3 page article – which, if you don’t have, I will email to your goodself

john


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Nordlys

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Re: Seaplane Tender mm1391
« Reply #19 on: April 01, 2017, 07:26:16 pm »

Hello John,
I would be well interested in a read of the article - many thanks for your offer.
I am in the late stages of a fairly major refurbish on a Range Safety Launch leaving the Seaplane Tender
build for later in the year.
N.
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barriew

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Re: Seaplane Tender mm1391
« Reply #20 on: April 01, 2017, 08:20:51 pm »

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Stavros

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Re: Seaplane Tender mm1391
« Reply #21 on: April 01, 2017, 09:40:55 pm »

Ill be have a word with Steve who is at the Coalvilke show tomorrow about this hull.


Dave
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