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Old Oct 15, 2010, 08:39 PM
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1/20 scale Aluminum WW2 ELCO PT Boat


Hi Guys,

I thought it was time I posted a few pictures of my scratch-built aluminum PT Boat that I started building back in 2003. Having a keen interest in learning the craft of metalshaping at the time, I went looking for an aluminum project that would provide a serious challenge for me at the same time. Then one day I saw an old B&W picture of a US Navy PT Boat underway, and I knew I had found my project.

I ended up meeting that challenge in the end, I just needed 6 years or so to learn the metalshaping techniques required to pull it off! The hull got riveted up in the fall of 2009, and she went for her maiden voyage last weekend at a local pond.

The boat performed nicely, but I need to find a lighter battery setup to get her sitting a little higher in the water. I have SLA's in there right now, but they proved to have limited run time and they're just too heavy.

I decided that her official designation is going to be PT 814, named as a token tribute to the only four real aluminum PT Boats ever built by the US Navy. Prior to the end of WW2, all PT Boats had been made of wood, until the late forties when the US Navy built four experimental PT Boats out of aluminum, numbered PT 809 through PT 812. The next available number was PT 813, which would likely sink immediately when placed in water, so I settled on the number PT 814. I took a few liberties with historical accuracy to accomodate the metal and r/c aspects of the boat, but it ought to look something like a real PT boat when she's done.


I've posted some pics of the hull below that were taken just after the rivet job last fall, and here's a link to the Youtube video from last weekend:


PT 814 Sea Trials.mpg (7 min 51 sec)


Ken
Last edited by PT Boat; Oct 18, 2010 at 09:08 PM.
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Old Oct 15, 2010, 09:03 PM
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She looks great! Really admire your skills.

In the photos she doesn't look like she's made of aluminum, more like stainless steel.
Old Oct 15, 2010, 09:20 PM
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Very nice!
Old Oct 15, 2010, 09:29 PM
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Early pictures


Here's a few more pictures taken during the hull construction. The hull was built in the assembly jig below to ensure that it came out straight and true.

-
Last edited by PT Boat; Oct 17, 2010 at 05:07 PM.
Old Oct 15, 2010, 09:56 PM
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Again, very nice. I built a 24" work boat hull out of 16 gauge sheet metal, but I just cut out the hull plates and shaped them over my knee then welded them together with no internal framing.
Old Oct 15, 2010, 11:25 PM
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Wow Wow Wow!!!!

That is too friggin' awesome for words!!!
Old Oct 15, 2010, 11:28 PM
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Since you do not need so much ballast, try using either 6-cell NiMh packs or even lighter LiPo battery packs.
Old Oct 15, 2010, 11:44 PM
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Fantastic sheetmetal work!
Old Oct 16, 2010, 12:07 AM
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Pinhead's boat
Old Oct 16, 2010, 12:15 AM
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Taking care of the pond.
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Cool build.
Old Oct 16, 2010, 01:21 AM
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Nice stuff


Hey Ken, beautiful metal work. As my father would say,(worked on a/c sheetmetal thru WW II)"nice tin bashing"
I'm in Smithville are you a member of Confederation Marine Modellers?
BTW, FYI the Lanc will be flying around noon today (weather permitting)
Old Oct 16, 2010, 06:29 AM
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Now there's something you dont see everyday! Thats just pretty darn cool! As said before, to save weight use stick batteries, try here they have good batteries at great prices. www.all-battery.com
Last edited by Predreadnut; Oct 16, 2010 at 06:46 AM.
Old Oct 16, 2010, 09:14 AM
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"Damn The Torpedoes...."
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Really nice work, outstanding, I would love to see what you could do with a PT-8 in metal!
Old Oct 16, 2010, 09:40 AM
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pt boat


hey that looks great ,i build a wood 5' and had to move a lot to the rear to get the bow out of the water more here a shot and a movie good luck ,rye

https://www.rcgroups.com/forums/newa...anageattach&p=


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