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    (Naval Ship) PT 109
    by BOATSHED πŸ‡¬πŸ‡§ ( Midshipman)
    21

















    Comments
    Boat Length
    50" (127 cm)
    Drive Type
    Direct
    Props
    Single
    Battery Type
    NiMH
    Prop Type
    2 Blade
    Model Speed
    15mph (24kph)
    3 years ago
    Flag
    She handles very well on the water, great on turns it's like she is stuck to the water. Hardly any roll at all. But then like an idiot I ran her up the side of the pond and now need a new prop and prop shaft fitted. (Motor: 26CC PETROL ENGINE) (8/10)


    πŸ’¬ Re: (Naval Ship) PT 109
    2 months ago by RNinMunich ( Fleet Admiral)
    Flag
    A while back now but ...
    Excellent BoatshedπŸ‘πŸ‘πŸ‘
    and that's precisely the colour I'm going to use on my PT109 conversion, together with some darker MTB Green camouflage splodges.
    Where did you get it?
    I also have a true to scale 37mm army field gun kit to add to the foredeck as JFK and co didπŸ˜‰
    I'll use a pair of brushless though.
    Maybe also a brushed 3rd motor (a la RH Baker's Brave Borderer) for stooging around / berthing. We'll see😊
    How did the repairs go?
    Cheers, Doug 😎

    camouflage splodges
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    πŸ’¬ Re: (Naval Ship) PT 109
    2 months ago by Rookysailor ( Lieutenant)
    Flag
    One hell of a boat Boatshed, love the engine, but where do you sail an ic powered boat now? have had to let all my lovely engines go, as they won't let me sail ic powered boats anywhere near I live.πŸ˜ͺ

    cheers Peter

    boat
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    πŸ’¬ Re: (Naval Ship) PT 109
    2 months ago by BOATSHED ( Midshipman)
    Flag
    I used to sail her on Blackheath pond in South London SE3. No longer allowed to now as they have banned them. I hadn't realised and the last time I went there and sailed her I had just come off the pond when the Park ranger tuned up. He said had he seen her on the pond I would have got an Β£80 fine. I have also used Clapham Common Long Pond but I am not sure now if i can run sail her there now. I need to replace the prop shaft now before I can sail her again. I live in Dartford and I am a long way from anywhere IC can be sailed. I know there is a pond in Eaton Park in Norwich in Norfolk and it is a purpose built pond for model boats and you can sail anything on there.

    prop shaft
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    πŸ’¬ Re: (Naval Ship) PT 109
    2 months ago by MouldBuilder ( Lieutenant)
    Flag
    Super looking model. I am currently re-fitting a Patrol Torpedo boat. I hope it turns out something like yours.😊
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    πŸ’¬ Re: (Naval Ship) PT 109
    2 months ago by redpmg ( Sub-Lieutenant)
    Flag
    Boatshed thats a super model indeed - what about running her on the Thames - or would you get arrested for that ?
    If you protected electronics and servo etc you could run her in the sea. On a fairly calm day she appears more than big enough. A good wash down afterwards and cleaning the propshafts is usually all that's needed.
    Is she fitted with a centrifugal clutch or direct drive ?
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    πŸ’¬ Re: (Naval Ship) PT 109
    2 months ago by BOATSHED ( Midshipman)
    Flag
    She is fitted with a centrifugal clutch the cooling comes out through the exhaust so that also quietens her down quite a bit.
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    πŸ’¬ Re: (Naval Ship) PT 109
    2 months ago by BOATSHED ( Midshipman)
    Flag
    When i get around to fitting a new prop shaft I will take her to Norfolk with me and have a go at running her in the boatyard. I have already done that a few times with my Proboat Miss Geico. I have run a boat back in the 80's on the Brighton and Hove Lagoon. That's salt water, but I don't know if that's allowed now. I might just try and find out. That would be a nice day out from Dartford. But I would need to flush her all through when I get home. I have an old bath in at the bottom end of the garden that I can do it in.

    boat
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    πŸ’¬ Re: (Naval Ship) PT 109
    2 months ago by RNinMunich ( Fleet Admiral)
    Flag
    "the cooling comes out through the exhaust so that also quietens her down quite a bit. "
    Aha! Isn't that exactly what JBkiwi is trying to do?
    How did you manage it Boatshed?
    Cheers, Doug 😎
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    πŸ’¬ Re: (Naval Ship) PT 109
    2 months ago by jbkiwi ( Captain)
    Flag
    He's got a petrol motor Doug, no problem doing that. Just cracked the electric version, see vid,- basic prototype but it works!
    JB

    version
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    πŸ’¬ Re: (Naval Ship) PT 109
    2 months ago by octman ( Chief Petty Officer 2nd Class)
    Flag
    I was always led to believe that the 37mm gun was a cast off from the P39 Airocobra fighter, hence the shape of the ammo fee
    Chris

    gun
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    πŸ’¬ Re: (Naval Ship) PT 109
    2 months ago by RNinMunich ( Fleet Admiral)
    Flag
    View All
    Hi Chris,
    That may well have been one of the many variants, but the 37mm M3 was originally developed as an Army Field gun (Anti-tank).
    https://en.wikipedia.org/wiki/37_mm_Gun_M3
    Which is what JFK, and others apparently, mounted on his PTB.
    What you are thinking of was the M4 version.
    https://en.wikipedia.org/wiki/M4_autocannon
    Some later PT Boats were fitted with these, as the attached pic of the restored PT658 shows.
    Cheers, Doug 😎
    https://en.wikipedia.org/wiki/37_mm_Gun_M3
    πŸ”—
    https://en.wikipedia.org/wiki/M4_autocannon
    πŸ”—

    gun
    M3
    PT Boats
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    πŸ’¬ Re: (Naval Ship) PT 109
    10 days ago by BOATSHED ( Midshipman)
    Flag
    View All
    If and when I do go brushless I will probably look on Ebay for a gun to put on the front deck. I do have a Brushless motor and a ESC new already, I don't know if it will be powerful enough for her being just over 4ft long. The motor I have is the same as the one in my 28" Proboat Miss Geico. But she is quite a bit heavier than my Miss Geico. I still want to be able to get her up on plane at a good speed. But I still also like to be able to go well over scale speed at times. As I have said in the past, I'm a bit of a speed freak. I still need to get a shaft to go with the boat. She has a flexy shaft in her at the moment, the shaft tube got bent when I run her out of the pond due to bad timing on my steering and talkint to my brother not paying attention at the time. I am unsure wether to put another one in or go for a straight shaft. In my RAF Crash Tender's I have always used straight shafts. I got her from TJD Models at Sutton at Hone which is the next village over the hill from where I live. It was a J Perkins model supplier they ordered it from for me. I have added a picture from the box it came in, I kept the box for it in my loft.

    gun
    Models
    boat
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    πŸ’¬ Re: (Naval Ship) PT 109
    10 days ago by BOATSHED ( Midshipman)
    Flag
    The water cooling was already set up but it's just basicly when it comes out of the cylinder head it's had tube soldered into the exhaust box and the exhaust gasses push the cooling out that way. If I had built it I would have run the exhaust out of the transom from two tubes, one either side of it. I would have looked more authentic that way. I will have to sit down and rewatch the PT109 film again to see what the gun on the bow looks like. Another film I have on my recorder is They Were Expendable, this is another film with MTB's in. They fascinate me. I have seen MTB 102 several times up in Great Yarmouth but they will not let me on board to see the engine room. They say it's due to health and safety with their insurance.

    tube
    gun
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    πŸ’¬ Re: (Naval Ship) PT 109
    10 days ago by BOATSHED ( Midshipman)
    Flag
    Sorry I'm wrong I haven't been near the boat for so long now. Looking at the pictures of her the head cooling comes out of one side and the exhaust box has got a second water pick up from the prop wash and straight into the exhaust box to help quieten her down. I do not find her loud myself, but the locals at Blackheath were we used to go were the ones that got together and had the council block the use of IC's. They had been used there sine well before the 1950's. I used to go there when I was 9 with an RAF Crash Tender with an ED Hunter diesel 3.46cc engine. I didn't have R?C in it we used to do either straight runs across the pond or let her go round in circles until she either worked her way across the pond or run out of fuel. The pond there now has a bird island in the middle and has so many ducks and the odd couple and swans on the pond they now put it down to both noise and pollution.

    boat
    prop wash
    IC
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    πŸ’¬ Re: (Naval Ship) PT 109
    10 days ago by jbkiwi ( Captain)
    Flag
    View Video
    There is a video on YouTube I saw somewhere of a complete tour through the boat, (may have been a BBC program) Not much to see in the engine room as it only has Cummins Diesels now. Still a bit of original equipment throughout the boat though.

    Just found it, - quite interesting, not sure if you have seen it.
    JB
    Motor Torpedo Boat 102 (MTB 102) | Historical Tour and Sea Trip
    ▢️
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    πŸ’¬ Re: (Naval Ship) PT 109
    9 days ago by BOATSHED ( Midshipman)
    Flag
    Thanks for that link. I will watch that later and connect the computer up to the tell and see it on the 50". I went out just after I last wrote on here so I've only just seen it. πŸ‘πŸ‘ I think she is now something to do with a Sea Scout group and moored possibly at Lowestoft.

    computer
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    πŸ’¬ Re: (Naval Ship) PT 109
    9 days ago by BOATSHED ( Midshipman)
    Flag
    I have just looked on Youtube and here is a short clip of MTB102 where she leaves a couple of younger boats in her wake. https://www.youtube.com/watch?v=W7ePPdehTc4
    https://www.youtube.com/watch?v=W7ePPdehTc4
    πŸ”—
    ▢️
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    πŸ’¬ Re: (Naval Ship) PT 109
    9 days ago by Martin555 ( Rear Admiral)
    Flag
    Hi Boatshed,
    Watching that video brought back a few memories.
    I spent some time working on both of those Archer class boats.

    Martin555.
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    πŸ’¬ Re: (Naval Ship) PT 109
    8 days ago by jbkiwi ( Captain)
    Flag
    View Video
    Re -Thanks for that link.

    Here is a vid of HSL 102 which might be of interest as the 100 series HSLs were based on the earlier MTB .
    JB
    hsl 102
    ▢️
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    πŸ’¬ Re: (Naval Ship) PT 109
    8 days ago by Martin555 ( Rear Admiral)
    Flag
    Jb,
    She certainly cuts through the water.

    Martin555.
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    πŸ’¬ Re: (Naval Ship) PT 109
    8 days ago by redpmg ( Sub-Lieutenant)
    Flag
    Very confusing when you have a MTB and a HSL with the same number. Which MTB/MGB was lost in a fire some years ago ? - thought it was 102 ?
    Perhaps we are a little slacker here but its easy running in the harbour where you only have a very slight swell - and the 2nd harbour although its subject to small tides (does not dry out unlike some in the UK ) has a sandy beach and a few rocks/ramps to launch from - big enough to nearly run out of range on RC too - not enough people around to complain about noise etc either. Be ideal for running a large IC boat.......
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