JohnS

1/72 RCN British Power Boat Co. Motor Torpedo Boat

84 posts in this topic

Posted (edited)

Thanks again Steve!

 

Here's a short & tiny update.

 

I've added the handrails & klaxons to the chart house.

 

590d00e14f762_106HandrailsKlaxons.jpg.2e117431b0990f6b9472c830c3cb2bad.jpg

 

The handrails were made from strips cut from plastic sheet & the klaxons were cut from where stretched sprue meets the sprue parts tree, to obtain the horn shape.

 

Here's a pic of the bridge superstructure sitting on the deck.

 

590d011f8eb07_107Inprogress.jpg.092fb4e7396060bcd954939646c9abb6.jpg

 

I'm focusing now on finishing the external detail on the bridge & chart house,

 

:cheers:

Edited by JohnS

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Oh....that is sweet!

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Hi Everyone!  Thanks Phantom for checking in.

 

Here's a couple of detail updates.

 

First, I've made the running lights that are located on each side of the bridge.

 

59176c76477cc_108RunningLights.jpg.031e8842fa2b8db5f3cc4fd9d21aba9e.jpg

 

I used a trick I learned on the Aircraft Modelling Forums for the lights. The lights were cut & shaped from clear plastic sprue.  The resulting lights were painted with clear red & green Tamiya paint.  I glued pieces of shiny silver foil on the back of the lights, before gluing the lights in the fabricated reflector boxes.  The foil adds a bit of sparkle to the painted clear lights.

 

59176c8ebc6bb_109RunningLightDetail.jpg.e6f03b3999098145668e8a4f315ba63f.jpg

 

Next I focused on making the two armoured antenna cable conduits located on the port side of the bridge.  In photos of these boats, the conduits look they're made from round metal pipe that were boxed in using wood.  I assume the wood was used for added protection.  It also looks like the antenna wires were terminated at insulators located at the top of each conduit.  The wires appear to go from the insulators to 'L' shaped parts, and then to the boat's mast.  The 'L' shaped parts appear to offer some protection so the wires won't be pulled out of the conduit or broken when the mast flexes.

 

Here's a photo of an actual boat;

 

59176cb172fdb_110antennaCableConduits.jpg.58bb2258ef37ff9a0a0aee4dd15a1de2.jpg

 

I wasn't able to find a lot of information on these conduit assemblies, so I used a lot of guess work/modeller's license when making the parts.  My conduits were made from small strips of wood cut from a popsicle stick.  The insulators were made from stretched plastic sprue, and the 'L' shaped parts were made from leftover PE material.

 

Here's the result;

 

59176cda534aa_111AntennaCableConduits.jpg.117aa2f180fe2e177c1bd8022bcc9562.jpg

 

That's it for now.  There's still a lot of small details to make.

 

Thanks for looking.

 

:cheers:

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Thanks Slartibartfast for dropping by.

 

I've spent my modelling time over the last week building the muffler system for the exhaust outlets located at the stern of the boat.  I'm guessing this design is unique to the British Power Boat MGB's/MTB's.

 

Here's one of the few photos I found showing the mechanism for the mufflers/silencers;

 

5920922a4e69c_112ExhaustSilencerMufflerMechanism.jpg.7a7d22960923f8d36fe3ad8a752308a2.jpg

 

The system consists of two manually operated linkage mechanisms that each raise and lower a circular flap over three exhaust outlets.  The exhaust sound is muffled for silent running when the flaps cover the exhausts.

 

Like most parts on this build, there's not a lot of information available.  Again, I've had to use a little guesswork & modeller's license to scratch build the parts from plastic sheet, wine bottle foil, & stretched plastic sprue.

 

Here's a (busy) photo showing what's been done to date;

 

5920924957f26_113ExhaustSilencerMufflerParts.jpg.0504ecce1aaacf06d1290a2e9d562e0c.jpg

 

I'm now ready to assemble & paint all the bits & pieces.  Here's a photo showing the first of six linkages being located & test fitted.

 

5920927258884_114ExhaustSilencerMufflerAssembly.jpg.c7a7cbb3fbc85ef5fecf6ecd2f46644c.jpg

 

Once I've got all six lined-up, I'll trim the linkages to size & glue everything together, before paint.

 

Hopefully, I'll have this part of the build finished for my next update.

 

Thanks for looking in.

 

:cheers:

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I've just completed the exhaust muffler/silencer assembly.  As I mentioned in my previous post, there's not a lot of information on this part of the build.  But, I've tried to match the photos I have as close as possible for this small scale.

 

Here's a photo of the finished assembly;

 

59285eb1a96b4_115ExhaustSilencerMufflerAssembly.jpg.a128ee05e4ed3b7a1e9d5924cb62b17f.jpg

 

... and here's a photo of the stern mocked-up with the twin Oerlikon guns, and the chemical smoke apparatus (in between the two silencer mechanisms).

 

59285ef56cbac_116SternMockup.jpg.eae666131b8f8693a21817b3f09f07e7.jpg

 

I still have a few deck details to add, and then I'll focus on the inside of the bridge, the mast, & the 6 pdr forward gun.  There's still a lot of work to do, but the end of this build is starting to come into sight.  :yahoo:

 

Until next time ,,,

 

:cheers:

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Posted (edited)

There's not much to show since my last update.

 

But, I have been working on the Coastal Craft 6 pounder gun kit.

The main gun on my Motor Torpedo Boat is a 6 pounder 7 cwt gun, with an autoloader developed by the Molins Machinery Company.

 

59371c2155b4d_1186pdr.jpg.501402b84aae4c185450c57bed7b4c24.jpg

 

The Molins 6 pdr gun was originally developed for the British Army as a tank destroyer.  As it turned out, the gun was not used by the Army as it was found not to be powerful enough to defeat the German Tiger tank.

 

The Royal Navy adapted the Molins gun for its MTB’s, in a power-operated Mark VII mounting. It had a 43-calibre barrel with a six round  Molins autoloader, plus one additional round in the breech.  Another twelve rounds were in a ready-use rack located behind the gunner’s compartment.  It was a semi-automatic gun.  The gunner had to press the trigger for each shot, at a maximum rate of about 40 rounds per minute.  The Royal Navy designation for the gun was 6 pdr QF Mk IIA.  It was the most powerful gun fitted to the RN/RCN MTB’s of this class, and was regarded as being very successful.

 

Ammunition consisted of a 2.7 kg HE (high explosive) shell fired at 655 m/sec with a flashless propellant charge (since MTBs usually operated at night).

 

The gun turret configuration included a round base, a gunner’s compartment to the left of the 6 pdr gun & Molins autoloader, and a platform for a loader located behind the gunner.  A 2-inch flare launcher was mounted to the right of the gun.  This flare launcher replaced a Holman projector that was originally mounted on earlier BPB MGB/MTB’s, on the deck behind the bridge.

 

Interestingly, the Molins autoloader 6 pdr was also deployed for a short time on some Royal Air Force Mosquitos of Coastal Command.  It was fully automatic, able to fire at a rate of about 55 rounds per minute, with an ammunition supply of 21 rounds.  It was intended for use against U-boats.

 

Like the Coastal Craft torpedo tube & Oerlikon kits used on this build, the 6 pdr kit is very detailed and includes resin & lots of tiny PE parts.  And, like most PE parts I've used in the past, I'm having glue & paint adhesion problems.  I seem to be roughing up the surfaces, re-cleaning, re-gluing, & then repainting the parts a number of times, being very careful not to damage the parts or remove the detail.  It's a slow and tedious process. :bandhead2:  The fit of the resin & formed PE parts is very good for this small scale.  However, it does take a little tweaking to get everything positioned just right.

 

So, after a week of reworking & tweaking, here's where I stand;  

1) The round resin base has been modified to fit the deck profile,

2) The resin gun & mount has been modified to allow the gun to rotate & elevate.

3) The PE gunner's compartment & loader's platform have been formed & glued to the resin gun mount. 

4) The resin gunner's seat & control box have been glued in the gunner's compartment.

5) The (tiny) resin gun rounds have been cleaned up & painted.

6) A base paint coat has been applied to the current assembly. 

 

As I mentioned at the beginning, there's not a lot to show for all this work.  Here's a teaser photo showing the 6 pdr gun mount mocked-up on the boat's deck.

 

59371c48c12d5_1176pdrinprocess1.jpg.27aa7fe02ce17818af54d8e653b6fa10.jpg

 

Well, it's back to the bench.  Hopefully, I'll have the gun completed for my next update.

 

:cheers:

Edited by JohnS

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Any progress to report, John?  I justed finished Squadron's Schnellboot in action and it mentioned S-boats didn't like to tangle with RN MTBs.

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HI Slartibartfast.  Here's my next progress update.

 

I've spent the last couple of weeks building Coastal Craft's 6 pdr gun and she's finally ....

 

5949c7d8e4184_1196pdr.jpg.3a6c5d667924746dfba9816271a53f7d.jpg

 

The 1st photo, above, is the CC kit box cover including a photo showing the assembly & many of the PE parts that CC supplies in the gun kit.  It turned into a major project for such a small part (my little sailor in the second photo is 1" tall).  I'm still amazed at the detail of the Coastal Craft kits.

 

Here's a photo showing the main parts of the gun, for reference;

 

5949c7f464c81_1206pdr.jpg.4b9e9c6145740ba275892ac1ff76f9d7.jpg

 

Completing the gun is a major milestone for this build.  Unfortunately, I just couldn't build the kit out-of-the-box.  I used photos of the actual gun to scratch build modifications to the gun base, the Molins autoloader, manual traverse crank handle guards, & the gunner's sight & sight mechanism, to add a little more detail,  I'm really happy with how the gun turned out.

 

Bear with me as I share a few more walk around photos of the completed gun;

 

5949c84661307_1216pdr.jpg.d7010148be02a898f362e1c78ce50613.jpg

 

5949c86d0308f_1226pdr.jpg.3ff36e665d6867417c446cf692c3ed48.jpg

 

And a few photos of the gun positioned on the model MTB's deck;

 

5949c896041e0_1236pdr.jpg.c74eec8274f8555f63cb25bb6fe72907.jpg

 

5949c8bf3c507_1246pdr.jpg.a238ae0fde6d581f0002fea60a8796ad.jpg

 

5949c8e8d6041_1256pdr.jpg.f05da50a39469db4a39d5ee0132492c1.jpg

 

So that's all the boat's armament completed.  She's looking more & more like an BPB MTB.

 

Next up, I'm going to attempt detailing the interior of the bridge.

 

Stay tuned.

 

:cheers:

 

 

 

 

 

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