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 Author  Topic: Italeri 1/35 PT-105 Build - David Waples
David Waples

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of David Waples  Posted on: Apr 17, 2013 - 8:00pm
Okay, I've started my build. The first step is to correct the hull. The Italeri hull is flat on the deck from bow to stern. It's also flat across the deck. Doing some measurements from Al Ross' 1/48 scale drawings I found the Italeri hull to be very close with the exception of the deck lines. The challenge is to correct the hull so that it visually represents the Elco hull as close as possible.

Measuring the hull against the drawings the stern is a little short so I'll be adding plastic to build it up slightly. The nose of the bow is a little too tall relative to the drawing so I will sanding the nose down to the correct shape.

Italeri hull laying flat on my workbench:



This photo and factory drawing illustrate the correct flow of the deck lines.





This factory drawing illustrates the slight crown of the deck. To replicate I will be adding frames with the correct crown so that when the deck is attached it will maintain its shape.


Okay, time to get to work!






David Waples

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Stuart Hurley

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Stuart Hurley  Posted on: Apr 18, 2013 - 12:54am
Hi, David,
Good to see you are under way at last.


Best Regards,
Stu.

Measure twice, cut once.




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Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Apr 18, 2013 - 4:21am
Ow. Thanks David, I'll have to add that to my "detail" page. The day room cabin will need some work too, Stu found some issues with it, particularly on the forward bulkhead.

Is the hull angle at the bow about 33 degrees off vertical? It looks a bit blunt in the image you posted but that may be the angle of the shot.



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David Waples

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of David Waples  Posted on: Apr 18, 2013 - 5:19am
Thanks Stu,

I just noticed this morning that my arrows didn't transfer over in the picture so I fixed that to show where the curves begin compared to the relatively straight sections of the hull.

Jeff, the bow angle is correct. The hull is so big that I had to angle it on my cutting matt so that it would fit. With the exception of it being a flat deck there's really nothing wrong with the hull.

I made a decision to remove the trim piece that runs just under the deck along the roughly 3/4 of the hull. I'll replace that with plastic strip. I think this is the path of least resistance in order to obtain a nice flowing curve. I've ground off one side and sanded it smooth. So far, so good. Lots of dust though.

Stu, I'm interested to hear what you found on the day cabin.

Dave

David Waples

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ducati650

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of ducati650   Send Email To ducati650 Posted on: Apr 18, 2013 - 6:08am
Very cool. i can't wait to follow your progress.


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Stuart Hurley

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Stuart Hurley  Posted on: Apr 18, 2013 - 7:09am
Hi, David,
I am afraid the day cabin is cursed. I have sent Jeff a complete list of everything I have done to my build so far, and he is giong to put up a page with some photos and text. Some of the changes are on my 'day cabin front and rear walls' thread although I have carried out more changes since then. I have built my exhaust system up on a 'false' transom piece of thick card to be fitted later after painting. It is much easier to work on it on a flat surface. I propped up my deck in the middle with lengths of kit sprue to force a bit more curvature into it, but I got into a lot of hurt with the charthouse fit so watch out when you do that. Fitting some frames might make it more consistant though. I wish I had thought to take off the side strip, It is difficult to make it follow the flare at the stern. I ended up compromising with this a little.


Best Regards,
Stu.

Measure twice, cut once.




Total Posts: 240 | Joined: Mar 19, 2013 - 3:32am | IP Logged

Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Apr 18, 2013 - 8:41am
The hull / deck at the bow sheer line (outer edge of deck) is parallel with the water / base line for the first 3 frames or so before it starts going down. I think you have the downward turn starting too far back David. Check the hull side profile I have up, it should be pretty much dead on. It's based on the 13 hundred or so measurements given in the Offsets drawing.



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Stuart Hurley

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Stuart Hurley  Posted on: Apr 18, 2013 - 10:41am
David,
I forgot to mention,
You probably have thought of this, but it may help you decide whether you live with the lack of curve at the bow or not. When you pare away the top edge of the hull at the bow you are of course, reducing the width of the hull V which then will not fit under the deck. You have to live with a large overhang at the bow and have a correct curve down, or just leave it.
If you go with the mod, you will not be able to use the screw because
the head will just pull through the deck (you have to reduce the screw pillar in the deck and remove the channel along the edge to get it to close) If you do not cut down the screw it will push through the stem.
I ended up taking a small amount off before I realised it was becoming a nightmare and stopped.

Best Regards,
Stu.

Measure twice, cut once.




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Bob Butler

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Bob Butler  Posted on: Apr 18, 2013 - 11:10am
You beat me to the punch. I scraped the paint and putty off, found the screw and took it out. Than I split the deck from the hull back to the depth charge location. Than I realized sanding the top of the hull was not the way to do it. So about the distance from the tip of the bow to the back edge of the hatch I put about an inch long .060 wedge between the deck and the hull to raise the deck, glued it in and put the screw back in and epoxyed the seam. This is what I ended up with, a little putty and paint and your done.



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David Waples

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of David Waples  Posted on: Apr 18, 2013 - 7:05pm
Thanks for the input guys. Stu, I follow what you're saying about the deck being too proud of the hull. And after reading Bob's comments, photo, and looking at the drawings I think I'm going to try a combo of both. I'm going to bring the bow down about 1/8 inch, build up a little just forward of the Chart House, bring it back to the kit top, and then a slight rise in the stern. Then I'm going to try and sand that continuous flow into the top of the hull. My hope is that it wont adversely effect the look of the kit deck on the hull. It's a hard thing to try and explain but I'll give it a go and I'll share some photos with you.

Good call about the screw on the bow. I think I'm going to opt for welding it in place.

I have some time to think on it as I have a lot of grinding to do on the other side of the hull.

Dave


David Waples

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