The PT Boat Forum
http://www.ptboatforum.com/cgi-bin/MB2/netboard.cgi


Forum Category: PT Boats of WWII
http://www.ptboatforum.com/cgi-bin/MB2/netboard.cgi?cid=101&fct=showf


Forum Name: PT Boats - General
http://www.ptboatforum.com/cgi-bin/MB2/netboard.cgi?fct=gotoforum&cid=101&fid=102


Topic: PT 109 Models
http://www.ptboatforum.com/cgi-bin/MB2/netboardr.cgi?cid=101&fid=102&tid=3001



How is everyone coming along with their 109 model Christmas presents? I have made some progress but those wing nuts on the tail end of those torpedos are tough for a 88 year old. There are 32 of them about the size of gnats and my fingers are not as nimble as they once were. Ha

C. J. Willis

Posted By: CJ Willis | Posted on: Jan 6, 2013 - 7:35pm
Total Posts: 464 | Joined: Nov 5, 2006 - 5:02pm



Keep at it, C.J.! Can't wait to see her once you have her finished!

Will

Posted By: Will Day | Posted on: Jan 6, 2013 - 8:14pm
Total Posts: 1882 | Joined: Oct 8, 2006 - 4:19pm



I'm probably not going to get started until March. I'm also anxious to see what everyone is doing with theirs.
Dave

David Waples

Posted By: David Waples | Posted on: Jan 6, 2013 - 9:33pm
Total Posts: 1593 | Joined: Jan 2, 2007 - 9:55pm



"There are 32 of them about the size of gnats" That's funny C. J., thanks for the laugh I needed one this morning.




Posted By: Jeff D | Posted on: Jan 7, 2013 - 4:50am
Total Posts: 1817 | Joined: Dec 21, 2006 - 1:30am



GOOD LUCK on your project C.J. I won't get started for some time now, need to build PT-61 first, and because I do not do my own work, I have to wait until Stan is ready to start my project. At this point, I am still on the fence of building her out of the box as PT-109, or coming up with another boat number.



Posted By: Frank J Andruss Sr | Posted on: Jan 7, 2013 - 5:05am
Total Posts: 3171 | Joined: Oct 9, 2006 - 6:09am




GOOD LUCK on your project C.J. I won't get started for some time now, need to build PT-61 first, and because I do not do my own work, I have to wait until Stan is ready to start my project. At this point, I am still on the fence of building her out of the box as PT-109, or coming up with another boat number.



If you don't have a 109 model already it would look good in yiur JFK exhibit.

Cheers and, if you're Orthodox Christian, Merry Christmas today.

"Give me a fast boat for we want to get out of harm's way too."

Posted By: PeterTareBuilder2 | Posted on: Jan 7, 2013 - 8:15am
Total Posts: 204 | Joined: Dec 8, 2012 - 6:03pm



I thought about that because right now Stan built me that nice paper PT-109 model (photos of this were on the board) but I do not have PT-109 model of Italeri's magnitude , so it might be right out of the box build.



Posted By: Frank J Andruss Sr | Posted on: Jan 7, 2013 - 12:34pm
Total Posts: 3171 | Joined: Oct 9, 2006 - 6:09am



I have completed my 109 model Christmas present. I does look like the 80 foot Elco's I saw in the Solomons alright. That 37 mm artillery gun on the bow, how did the aim that thing? Is a crew available from Itilari for this model?

C. J. Willis

Posted By: CJ Willis | Posted on: Jan 15, 2013 - 3:06pm
Total Posts: 464 | Joined: Nov 5, 2006 - 5:02pm



I was never on a Elco PT boat. I guess to aim a tied down 37 mm gun,use the boat like
a P-39. For elevation I guess the adjustment is part of the gun. Just my wide guess.
Victor


Victor K Chun

Posted By: victorkchun | Posted on: Jan 15, 2013 - 3:38pm
Total Posts: | Joined: Unregistered



Victor.

The traverse of the towed gun split trail M3 Anti-Tank Gun was 60 degrees and elevation was -10 to + 15 degrees.

Cheers

"Give me a fast boat for we want to get out of harm's way too."

Posted By: PeterTareBuilder2 | Posted on: Jan 15, 2013 - 5:40pm
Total Posts: 204 | Joined: Dec 8, 2012 - 6:03pm



Geary Sims sent me this a while back:

[green]Reference the 37mm gun: Doing extensive research on PT 108 which also had the same 37mm gun, I found there are some myths. One, the 37mm anti-tank wasn't found, in fact there were 8 to 10 boats that had/were to have this mounting. It was an experimental mounting to see if the 37mm gun was effective against the Daihatsu barges. The guns came from and were mounted by members of the US Army 25th Infantry Division. From conversations with Dick Keresey and some of the 108 crew, Kennedy may have been the one who came up with the idea for the mounting.

Secondly, the newer mountings were not salvaged from P-39's. They were adapted by the Navy and the Elco plant to fit the PT Boats. The 108 received one plus the roll-off torpedoes.

The 109 was slated for the mounting of the 37mm on her return from that mission. That is why she had the lumber lashed to the deck. Didn't want to leave on the dock for it might not be there when they got back.[/green]

So it seems it was just a temporary mount and that the gun was not ready to be fired.




Posted By: Jeff D | Posted on: Jan 16, 2013 - 3:49am
Total Posts: 1817 | Joined: Dec 21, 2006 - 1:30am




I have completed my 109 model Christmas present. I does look like the 80 foot Elco's I saw in the Solomons alright. That 37 mm artillery gun on the bow, how did the aim that thing? Is a crew available from Itilari for this model?

C. J. Willis


Hi CJ,
There is no 109 crew yet for this model but I think it is under consideration by Italeri. We'll have to be patient and see what they bring us. I hope you had fun with your kit!
Dave

David Waples

Posted By: David Waples | Posted on: Jan 16, 2013 - 9:29pm
Total Posts: 1593 | Joined: Jan 2, 2007 - 9:55pm



Great info on the first PT 37mm field pieces, Jeff, thanks.

I've never read or come across any information that pointed to the way the 109's 37mm gun was mounted was anything other than a temporary, jury-rigged set up, to be more securely mounted later.

Dave, I hope you're right on the Italeri 109 crew figures -- although I already have a set of the (expensive) PT 596 figures that would fill in nicely (although the 40mm gun crew would have to be modified).



Posted By: Drew Cook | Posted on: Jan 17, 2013 - 8:04am
Total Posts: 1243 | Joined: Oct 19, 2006 - 10:44am



Jeff D.
A question to you re. the .50 cal Barrel Jacket was there 5 rows of cooling holes or 6?

While doing a setup for machineing up some brass sleeves for a bit of interest on the 596 Boat I got a little stuck on this point and I could not find any notes on your website that had this info,

Going by your drawing there appears to be 5 but this does not work out when I stagger them on the tube as the last row lines up with the first,

Hopeing you can help

D.buck

Posted By: David Buck | Posted on: Jan 17, 2013 - 3:04pm
Total Posts: 332 | Joined: May 4, 2008 - 2:59am



Sure thing Drew, happy to share.

There are 6 rows David, on my drawing there is 1 pointing straight up and 1 straight down, then 2 on each side of the jacket.




Posted By: Jeff D | Posted on: Jan 17, 2013 - 3:35pm
Total Posts: 1817 | Joined: Dec 21, 2006 - 1:30am



Those are .30 cal. with 8 rows Dick, here's a .50 cal. one I used for my drawing:

[url]http://www.pt103.com/images/asst/barrelJacketBlueprint_03.jpg[/url]




Posted By: Jeff D | Posted on: Jan 17, 2013 - 5:13pm
Total Posts: 1817 | Joined: Dec 21, 2006 - 1:30am




Opps . . . . . . . . .

Dick . . .



Posted By: Dick | Posted on: Jan 18, 2013 - 10:39am
Total Posts: 939 | Joined: Aug 27, 2006 - 6:36pm



Thanks Dick and Jeff that helped put it into place for me.

Thats alright Dick we all do that occasionaly.

D.buck

Posted By: David Buck | Posted on: Jan 20, 2013 - 1:30am
Total Posts: 332 | Joined: May 4, 2008 - 2:59am



Jeff,
Just a small point I find that the full length of the Jacket on the Drawing you posted is 28 3/8 " were as if I scale your drawing up using your 1' squares I get 28 3/4'. were there any revisions done to this drawing or am I wrong in my scaleing

D.buck

Posted By: David Buck | Posted on: Jan 20, 2013 - 1:49am
Total Posts: 332 | Joined: May 4, 2008 - 2:59am



The Army jacket drawing doesn't show the threaded breech bearing that gets welded on the gun end of the tube , and mine doesn't show the end of just the jacket part. The jacket doesn't go all the way into the bearing, this drawing of the breech bearing should clear things up:

[url]http://www.pt103.com/images/asst/barrelJacketBlueprint_04.jpg[/url]




Posted By: Jeff D | Posted on: Jan 20, 2013 - 5:23am
Total Posts: 1817 | Joined: Dec 21, 2006 - 1:30am



Thanks Jeff that makes it a lot clearer.

D.buck

Posted By: David Buck | Posted on: Jan 20, 2013 - 10:37pm
Total Posts: 332 | Joined: May 4, 2008 - 2:59am



Cool David, happy to help. I'm also happy to see when someone can make use of my drawings. Here's another Army drawing you might find useful, the trunnion adapter that the bearing screwed in to:

[url]http://www.pt103.com/images/asst/trunnionAdapterBlueprint.jpg[/url]

I was excited to find these drawings when I was working on mine, .50 stuff is hard to find since it's a MG and a form of the gun is still in use. Some guy in the UK had them.




Posted By: Jeff D | Posted on: Jan 21, 2013 - 6:51am
Total Posts: 1817 | Joined: Dec 21, 2006 - 1:30am