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» Forum Name: PT Boats - General
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» Topic:
MK-2 Smoke Generator
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Does anyone have any good drawings or photos showing the MK-2 Smoke Generator. Stan needs it for building Ken Prescott's PT-61. Also anyone know the placement of this generator on the stern. In one of the photos that Wayne Traxel sent to me it looks as though it is on the stern a bit off center, but I can't really tell.....................
Posted By: Frank Andruss | Posted on: Sep 18, 2014 - 12:04am
Total Posts: 3964 | Joined: Feb 9, 2007 - 11:41am
Hi Frank,
I have posted these before, they are in the book found on the HNSA website called "Ships Chemical Smoke Munitions" manual. Hope this helps, Jerry
PS Frank I have seen numerous photos showing that different boats would mount the Smoke Generator in several different places near the stern. Some boats had it along the aft port or starboard rub rail,(ie PT305) then others have it centered athwartships along the transom. Then again others place it fore and aft on the centerline. I think it depended upon what each boat skipper preferred at the time of installation. Just my 2c!
Here is a Mk2
Different removable nozzles could be mounted for various spray rates and coverage, Did you notice the word "ELCO" written on the handle of the wrench?
Mounted on 77ft Elco
View from another angle
Mark 1 FS Smoke generator has two tanks, one has CO2 and the other has smoke liquid
Book that explains it all on the HNSA website
Jerry Gilmartin
PT658 Crewman
Portland OR
Posted By: Jerry Gilmartin | Posted on: Sep 18, 2014 - 1:14am
Total Posts: 1492 | Joined: Oct 8, 2006 - 11:16pm
Thanks Jerry I do have this information, what I do not have is a drawing or measurements. In fact, does anyone actually know the true measurements of an Elco smoke generator for say late war Elco or Higggins?
Posted By: Frank Andruss | Posted on: Sep 18, 2014 - 7:45am
Total Posts: 3964 | Joined: Feb 9, 2007 - 11:41am
Frank-
The Roll 310 drawings include the base for the Mk2, and the deck framing plan is referenced which allows the generator to be placed properly. I had to eyeball the rest of the unit to create my 3D Print model in 1:24. Should have my first sample shortly!
[url]http://www.rcgroups.com/forums/showthread.php?t=2217225&page=4#post29321046[/url]
Patrick Matthews
Matthews Model Marine
http://matthewsmodelmarine.wordpress.com/
Posted By: Patrick Matthews | Posted on: Sep 18, 2014 - 8:41am
Total Posts: | Joined: Unregistered
Frank;
The MK II in Jerry's post is what PT 61 carried from the day she was placed in service until at least MAY 1943, which is the date of Ken's PT 61 photos. As can be seen in Jerry's posts, the MK I does not look like the same measurements as the MK II. On PT 61 a smaller CO2 tank was mounted upright at the head of the titanium tetrachloride tank and toward centerline. Here are some photos, but this is your lucky day! I am sending you a blueprint of PT 61, that Wayne sent me years ago, to your private email.
PT 61 Melville Spring-Summer1942, prior to 20mm installation
PT61 Torpedoman Paul Darrough wearing Chief MoMM Burney Fisk's hat.
Pat's Outstanding CAD diagram.
Take care
TED
Posted By: TED WALTHER | Posted on: Sep 18, 2014 - 12:15pm
Total Posts: 3090 | Joined: Oct 16, 2006 - 7:42am
Thanks guys, you are the best. Stan will be very happy when he see's these details. I di get your E mail Ted, thanks very much. I do see what you mean about the hatch for the lazzerette...............
Posted By: Frank Andruss | Posted on: Sep 18, 2014 - 4:42pm
Total Posts: 3964 | Joined: Feb 9, 2007 - 11:41am
Frank,
Are you building a PT61 or have one built? I am building one at 1/20 scale and have a few questions as it will be the (late 1943) gunboat version.
Lew
info@lewsmodelboats.org
http://lewsmodelboats.org
Lew
Posted By: Lew Zee | Posted on: Oct 3, 2014 - 7:43pm
Total Posts: 141 | Joined: Dec 12, 2013 - 12:04pm
Lee just click on my Email icon on the top, and you can E Mail me with your questions. My boat is being built in 1"24 scale and is the early version of the boat when Ken Prescott was in Command. At that time she did not carry any Radar, roll off racks, or MK-XIII Torpedoes. All she had was the 20mm Cannon on her stern and of course her twin .50 caliber guns.
Posted By: Frank Andruss | Posted on: Oct 4, 2014 - 1:38pm
Total Posts: 3964 | Joined: Feb 9, 2007 - 11:41am
(Duplicate post deleted)
Lew
Posted By: Lew Zee | Posted on: Nov 10, 2014 - 8:14am
Total Posts: 141 | Joined: Dec 12, 2013 - 12:04pm
Here is where I am at on my smoke generator for the PT61 (Oct. 1943 gunboat conversion). Will add a few details and finish paint. The tank is Frank's but with the cap end turned down. The rest are scrap and spare pieces.
Lew
http://s48.photobucket.com/user/LewZee/media/LZPT61-11-03-2014Bsmall_zps1ede2219.jpg.html
Lew
Lew
Posted By: Lew Zee | Posted on: Nov 10, 2014 - 8:17am
Total Posts: 141 | Joined: Dec 12, 2013 - 12:04pm
Lew;
While your smoke generator looks great, I am not sure this version was on PT 61 when she was refitted as a Gunboat (Sept 20-Oct 4,1943 by USS Argonne). While it was used up until refit, I can't say for sure if it was carried over. PT 59's was not, 59's was replaced by the standard model carried on the 80 foot boats.
I do know PT 61 did not have one after her service as a gunboat. Feb 8, 1944 she was turned over to COMNAVBASE New Georgia to be used as a small boat.
PT 59 Oct 1943.
PT 61 after re-designation to small boat 1944.
Posted By: TED WALTHER | Posted on: Nov 10, 2014 - 10:21am
Total Posts: 3090 | Joined: Oct 16, 2006 - 7:42am
If Italeri were to do a 1/35th scale PT 45-68 77' Elco kit, hopefully they'll include both types of smoke generators...
Posted By: Drew Cook | Posted on: Nov 10, 2014 - 1:44pm
Total Posts: 1306 | Joined: Oct 19, 2006 - 10:44am
Frank, Made this 1/24th scale drawing of PT-61 in 1994 based on pictures and info from Ken Prescott. Details of the Mk-2 smoke generator are a bit off, but the location of the Mk-2 shown on the overhead view is correct. Hope this helps.
Wayne Traxel
Posted By: Wayne Traxel | Posted on: Nov 12, 2014 - 5:38pm
Total Posts: 248 | Joined: Oct 11, 2006 - 5:40am
Thanks Wayne, did you ever send me this drawing? I am pretty sure Stan has this one.
Posted By: Frank Andruss | Posted on: Nov 12, 2014 - 5:43pm
Total Posts: 3964 | Joined: Feb 9, 2007 - 11:41am
Frank;
No I recently sent you a copy of Wayne's drawing, which he originally sent me with my 1/24th 77' model.
Take care,
TED
Posted By: TED WALTHER | Posted on: Nov 12, 2014 - 6:58pm
Total Posts: 3090 | Joined: Oct 16, 2006 - 7:42am
Hi Frank, Yup, Appears I also sent you a copy of this PT-61 drawing some years ago.
Wayne Traxel
Posted By: Wayne Traxel | Posted on: Nov 12, 2014 - 10:18pm
Total Posts: 248 | Joined: Oct 11, 2006 - 5:40am
Ah, more confusion. Wayne's drawing is in direct conflict with the Al Ross drawing of the PT61 Gunboat as far as the SG is concerned. I will keep the current SG (aligned fore-aft) util I find otherwise (if that will ever happen). Either way, the Elco 77 gunboats will make a very interesting model and am looking forward to finishing it. Had shoulder surgery last Friday ("good" arm) so my model building is set aside for a few weeks.
Have any of you figured out what the small "tabs" along the side about 10" (real) above waterline are? They are at bulkheads 23, 34, 41, 48, 56, & 59.
Lew
Lew
Posted By: Lew Zee | Posted on: Nov 13, 2014 - 2:07pm
Total Posts: 141 | Joined: Dec 12, 2013 - 12:04pm
Hi Lew, Al Ross's PT-61 gunboat drawing featuring the later type smoke generator would be correct. As Ted mentioned, PT-59 also had the Mk-2 generator at the same time period as 61 did. I think it would be safe to assume when 59 and 61 were converted to gun boats by the Tender USS Argonne these craft received the newer type generator as an update. By fall of 1943 many PT's received updated equipment.
Wayne Traxel
Posted By: Wayne Traxel | Posted on: Nov 13, 2014 - 2:54pm
Total Posts: 248 | Joined: Oct 11, 2006 - 5:40am
Man that scratch built generator looks awesome
Jerry O
Posted By: Jerry Orfano | Posted on: Nov 14, 2014 - 5:59am
Total Posts: | Joined: Unregistered
