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Norwich MBC Submariners joint Model Boat weekend - 27/28th July

Grantham MBC, SUN, AUG 11 AT 10 AM
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.Model Boat Convention (Exhibition), 24,25 August

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. Bournville Dive-In (2) MBC, 15th September

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Barrow in Furness MBC regatta and submarine event, Sunday 22nd Sept 2019,10am

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    MAP submersible, number 3

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    Tom(ADMIN)
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    Post  Tom(ADMIN) on Thu Nov 17, 2011 2:44 pm

    I guess you'll all know by now that owing to various things going wrong with my internals, I am banned by my doctor from building fibreglass boats, so consequently I've had to part with the Deans Marine Type 1X U-boat and the Biber.

    Whilst hunting around for a replacement to build, I remembered the old MAP submersible, designed by ex AMS member Bob Read, so with grateful thanks to Derek at Sarik Vacform, a set of vac formed mouuldings arrived at my front door last week.

    The set comprises a bottom hull, top hull, deck and two large sheets of styrene, and measures a mere 15" long. Having built two of these before, I decided to build this one along the same lines as number 2, with an integral radio box, which I bought from Prestwich Models. The box does need some trimming however, so I had to do this outside, upwind of the fibreglass dust, whilst wearing a borrowed face mask.

    The story so far is that I've trimmed the hull mouldings, installed the rear mounted dive planes, built and installed the steering nozzle, drilled the flood holes in the top deck and made a start on fitting out the radio box.

    Now I'm waiting on the esc turning up, and then I can finish off the radio installation.


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    The mouldings as received...

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    The radio box...


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    Radio installation so far...
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    Post  Tom(ADMIN) on Thu Nov 24, 2011 2:49 pm

    The revised(and final)radio and electronic layout in Deep Quest 3...

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    Escap 380 sized motor
    Two 7.2v 1600m/amp battery packs wired together to give me 2300m/amp output @ 7.2v.
    Mtroniks Viper 15 esc with built in BEC.
    Futaba 3 channel micro rx.
    One x MMB 9g micro servo for the steering nozzle.
    One x JR S75 7.5g micro servo for the rear 'planes.

    The propshaft is made from a 5.5" length of car aerial tube and two PTFE bushes, a 7" length of 4mm s/steel for the shaft and carries a 35mm 3 bladed brass Raboesch prop. The motor to shaft coupling is a mixture of bits and bobs from my spares box.
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    Post  Tom(ADMIN) on Sat Nov 26, 2011 1:52 pm

    Body shell is now almost completed...hydroplanes installed, rear fin and steering nozzle installed, just a spot of filler here and there and then it's off to adopted daughter's partner to be sprayed in UltraBrite Lime Green and Black.

    The astute amongst you will have noticed that is the DeLuxe model, it has chrome periscopes and a 10mm flashing HiViz orange beacon fitted...



    MAP submersible, number 3 Dsci0018
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    Post  Tom(ADMIN) on Sun Nov 27, 2011 10:05 am

    Last little bits of deck detail added, the flashing LED will be refitted after everything has been painted.

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    Post  david f on Sun Nov 27, 2011 2:51 pm

    Nice. I like the hand wheel on the hatch.
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    Post  Tom(ADMIN) on Sun Nov 27, 2011 2:57 pm

    Hand wheel courtesy of my spares box...hatch courtesy of my tube of Steradent!
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    Post  Tom(ADMIN) on Mon Nov 28, 2011 10:03 am

    I decided that as the full sized version of Deep Quest has a forward mounted vertical thruster, then my model version should have one fitted.

    The outer tube is a section of a 30ml syringe, cut down and faired in to the deck, now I'm hunting for a small motor to fit the tube.

    The propellor will be a brass version of the plastic one seen in the picture...20mm diameter with six blades.




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    Post  Tom(ADMIN) on Mon Nov 28, 2011 2:36 pm

    The safety guards made and temporarily installed. They will be secured from the underside using 1/2" sections of plastic tube stripped from a length of silicone cable so as they can be removed to give me access to the propellor should it be needed for maintainence.


    MAP submersible, number 3 Dsci0022
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    Post  tattooed on Mon Nov 28, 2011 5:58 pm

    will you slow down please rich at this rate your going to have your next one built even before you've got it out the box mate
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    Post  Tom(ADMIN) on Mon Nov 28, 2011 6:06 pm

    Fear not mate, I'm taking my time with this one, really enjoying building it. The nuts, bolts n' washers for the radio box should be here tomorrow, as should the quick access hatch plug...once I've got those fitted, then I can install the radio box and the steering nozzle.

    Taking my time, mate...
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    Post  Tom(ADMIN) on Tue Nov 29, 2011 9:29 am

    Radio box components arrived this morning, so it's onwards and upwards...

    This is the inner flange drilled, bolts inserted and wire securing strips in position ready to be secured.


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    Post  Tom(ADMIN) on Wed Nov 30, 2011 10:39 am

    The hatch bolts are all fitted into the flange now...using 4mm bolts, screwed through slightly undersize holes so as to form a real tight fit. A drop of thin cyano glue over the last two turns of thread secures the bolts in. Then lengths of brass wire are fitted into the screw heads with cyano glue, then given a through coating with epoxy resin, this secures the whole lot and makes it virtually bomb proof.

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    A quick access hatch is needed to be able to switch the radio and power circuits on, so I opted to try this little device from Prestwich Models, manufacturers of the radio box. It's just a little rubber bung with a cam which pulls the bung up tight to the clear hatch, supposedly 100% waterproof.


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    And here is the bung fitted into the clear hatch cover.

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    Post  Tom(ADMIN) on Thu Dec 01, 2011 10:44 am

    The rubber gasket arrived this morning, ideal size...it's ever so easy to cut with a sharp craft knife and a steel edge.

    Pic shows the gasket fitted into place, just needs a bit of a clean up and the dust removed and it's ready to glue into position.


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    Post  tattooed on Thu Dec 01, 2011 5:25 pm

    nice and neat rich just what i'd expect from you mate
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    Post  Tom(ADMIN) on Thu Dec 01, 2011 6:45 pm

    Thanks mate...just finished wiring up the electronics in the box, everything works as it should, so tomorrow I'll get the box installed in the boat and the linkages made and hooked up.
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    Post  Tom(ADMIN) on Sat Dec 03, 2011 9:05 am

    I'm pleased to report that the radio box fits into the hull perfectly and even better, the deck fits over the box as well...always a worrying time when the radio box is built independently of the hull in a boat this small. And as a bonus, the box access hatch can be removed whilst in situ...

    Next step is to glue the box into the hull with aquarium silicone sealant, seal the propshaft exit, then it won't be too long before it'll be time for the initial watertight integrity test in the internal domestic test tank facility (aka the bath)

    MAP submersible, number 3 Dsci0028


    MAP submersible, number 3 Dsci0029


    (our esteemed Chairman thinks that the boat should be renamed Jelly Bean...)
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    Post  Tom(ADMIN) on Sun Dec 04, 2011 3:34 pm

    Ladies and gentlemen...boys and girls...it gives me immense pleasure to announce that I've had the submersible in the bath for the last hour, and even more pleasure to announce the fact that the watertight box was exactly that. Watertight...not a drop of water in sight.

    I did a short test run on the motor and it has more than adequate power, and the steering nozzle gives the boat the ability to practically turn in the width of my bath. I haven't hooked up the dive planes yet, that's next on the agenda.

    But for now, I'm relaxing with a glass of wine and enjoying the moment.

    Oh, no photos, the camera batteries need a charge.
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    Post  david f on Tue Dec 06, 2011 5:00 pm

    Very nice Richard. (It conjures up a cosy scene.)
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    Post  Fred L. on Wed Dec 07, 2011 3:25 pm

    Nice work but we want more pictures :p
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    Post  Tom(ADMIN) on Wed Dec 07, 2011 6:13 pm

    I'm working on it Fred...
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    Post  tattooed on Wed Dec 07, 2011 6:16 pm

    come on rich don't be shy , show us all the fantastic work you've been doing
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    Post  Tom(ADMIN) on Wed Dec 07, 2011 6:31 pm

    Aww Andy, I'm blushing now...
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    Post  tattooed on Wed Dec 07, 2011 9:08 pm

    praise where praise is due my friend
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    Post  Tom(ADMIN) on Sun Jan 15, 2012 12:42 pm

    Apart from a lick of paint, Deep Quest is now completed and ready to go.

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    Sorry about the crap pictures...one day I'll learn how to take a decent photograph.
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    Post  Tom(ADMIN) on Fri Jan 20, 2012 10:06 am

    Tried taking pictures with my camera phone...any better?

    MAP submersible, number 3 20012010

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      Current date/time is Wed Jun 26, 2019 10:56 pm