Author Topic: Boeing Y1B-17 Project--1/48th Scale  (Read 74710 times)

samuraj77

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #45 on: March 19, 2010, 07:41:41 PM »
Everything looks great even at this moment...
I can allready see that this is going to be impresive once it is finished...
 :-flo

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #46 on: March 21, 2010, 05:20:57 AM »

Here is the first of four intake ducts that go into the nacelle scoop. The little divider in the center of the duct was a door that could close off the ram air duct if selected by the flight crew.
http://i174.photobucket.com/albums/w117/2AF/IMG_4665.jpg
Boeing Y1B-17 Project--1/48th Scale


And here it is roughly mounted in the #2 position--still a bit of work to do but you get the idea:
http://i174.photobucket.com/albums/w117/2AF/IMG_4664.jpg
Boeing Y1B-17 Project--1/48th Scale


I also managed to construct the #4 exhaust fairing and am working on the #3 fairing right now. We had some snow (quite unusual for Oklahoma this late in the season) so I may have more time to model tomorrow. :-cool :-jump

Scott


samuraj77

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #47 on: March 21, 2010, 01:02:44 PM »
Great work on the duct...Was it a brass square profile that you used?
« Last Edit: March 21, 2010, 08:21:23 PM by samuraj77 »

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #48 on: March 21, 2010, 04:14:41 PM »
Yes, Samuraj, it is K&S Products brass tubing. The outer walls are too thick and will need to be filed down to thin them to a more "in-scale" profile before I'm finished. I would have preferred using aluminum tubing but the brass was all I had.

Scott

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #49 on: March 23, 2010, 06:14:54 PM »
I got a bit more accomplished on Sunday. Again, I find that the more I study the photos and drawings the more I learn about the YBs. While working on the nacelles I noticed that the landing light wells in the wings are quite different than later models. Here is one wing modified with the unmodified one on the right, with a photo of the YB landing light between them:
http://i174.photobucket.com/albums/w117/2AF/IMG_4668.jpg
Boeing Y1B-17 Project--1/48th Scale


I got the right exhaust fairings roughed in also. These will be removed until the wings are nearly finished so I don't knock them off or bend them while I'm doing the rest of the wing bodywork. They'll be permanently installed and faired in with putty much, much later......
http://i174.photobucket.com/albums/w117/2AF/IMG_4674.jpg
Boeing Y1B-17 Project--1/48th Scale


Here is one engine/cowl/prop set after the cowl mountings were fabricated. The engine will support the cowling as on the real airplane so that the cowl and nacelle opening will have the proper gaps:
http://i174.photobucket.com/albums/w117/2AF/IMG_4675.jpg
Boeing Y1B-17 Project--1/48th Scale


I also finally sprayed a bit of primer on several pieces so I could check the fit of various window plugs and modifications. Notice the darker grey spot shows a low area that must be corrected. This area will need to be filled, sanded, contoured, reprimed, and re-block sanded until the shape is consistent. It did feel good to finally put some primer on this project!
http://i174.photobucket.com/albums/w117/2AF/IMG_4669.jpg
Boeing Y1B-17 Project--1/48th Scale


Scott

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #50 on: March 23, 2010, 06:30:09 PM »
As I could note this is perfectly shaped :-clap

Letipapa

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #51 on: March 25, 2010, 02:15:57 PM »
Scott! You are incredible! :-obey :-obey :-obey :-clap :-clap :-clap :-clap :-clap :-clap

This marvelous work made my day wonderful. I was not on LLL more days, I visited my mother in the other city, other country. This is fantastic and pleasant surprise. Thank you man :-flo, suprime work. :-tri

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #52 on: April 12, 2010, 02:17:55 AM »
It's been a while since I last updated this thread. I've been able to do just a little bit to the B-17, so here goes:
I finally applied the first couple of coats of primer to the wings, finding a LOT of touch-ups needed. There were the usual high and low spots and some other challenges to contend with. This photo is after the third prime/sand/fill session and I've marked flaws with a marker for the next round.

http://i174.photobucket.com/albums/w117/2AF/IMG_4763.jpg
Boeing Y1B-17 Project--1/48th Scale


I posted a few photos of the nose section on the Natural Metal Finish thread so I won't add them here.

Scott

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #53 on: April 12, 2010, 07:45:11 PM »
This look very smooth and fine! I see something metal on nacelle top side- exhaust?

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #54 on: April 14, 2010, 04:06:56 PM »
Yes, those are the exhaust stacks, No.1. I glued them into the wing surface when I was making the fairings. I decided to permanently attach them since it was a bit difficult to get the angles just right.

I've built a number of the Monogram B-17G kits over the years but never had the guts to try opening the bomb bay doors. It isn't all that much fun! :-wall

First, the real bomb bay is circular so you have to build an upper panel to cover the turtledeck opening. Then the internal structure has to be built to replicate the former rings and stringers in the bay. Here is a rough idea of how that looked during the process. The white panel is the filler for the turtledeck area.
http://i174.photobucket.com/albums/w117/2AF/IMG_2989.jpg
Boeing Y1B-17 Project--1/48th Scale


The forward and aft bulkheads also have to be built from scratch in order to completely plug the fuselage forward and aft. Flat covers were made to cover the wing root-to-wing junction on the inside of the fuselage, and the ears on the wings have to be trimmed so they don't impinge too far into the bomb bay. More on that area later.

Next I started fabricating the center keel truss assembly. I dug out a visible B-17 kit so I could use the keel and bomb racks for a guide, but that wasn't really of much use. Fortunately I'd taken lots of photos of TR last year and have some good YB-17 references, so the truss is starting to take shape. Here is the aft wing carry-through getting started:
http://i174.photobucket.com/albums/w117/2AF/IMG_3029.jpg
Boeing Y1B-17 Project--1/48th Scale


And this is the forward carry-through mostly complete. The lower beam of the centerline truss can be seen in the middle of the bay. The racks will fasten to this and the top of the fuselage later.
http://i174.photobucket.com/albums/w117/2AF/IMG_3025.jpg
Boeing Y1B-17 Project--1/48th Scale


Scott

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #55 on: April 14, 2010, 06:02:21 PM »
Marvelous work!! I have only once work this and that was in 1/72 scale and more narrow fuselage of Dornier Do 17. As well this will be open, there will nice nice option to make diorama.

Letipapa

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #56 on: April 14, 2010, 08:01:48 PM »
Mmmm! :-think As I understood, both pipes (signed with a red arrows on photo 1) are, in fact, still there but under the plaster (areas rounded with red ellipses on photo 2), so nacelles changed their section profile actually. Right? :-think :-think :-think

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #57 on: April 14, 2010, 08:12:56 PM »
I've actually removed the fairings in the second photo. The exhaust pipes on the real airplane sat in a groove in the nacelle and the scoop fairing was screwed on top of the groove. For the sake of laziness I just drilled an angled hole in the nacelle and stuck the exhaust pipe tubing in the correct location. One of my earlier photos of the interior of the wheelwell shows a plastic rod that represents the trough or groove that is visible in the wheelwells. After I've glued the wing halves together I will install the fairings--they actually sit on top of the nacelle as in the first photo you highlighted. I didn't want to damage the fairings while working on the individual wing pieces.

Scott

Letipapa

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #58 on: April 15, 2010, 10:31:37 PM »
Oh, I see! All clear to me now, thanks! :-flo :-wave

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Re: Boeing Y1B-17 Project--1/48th Scale
« Reply #59 on: May 02, 2010, 04:06:05 AM »
Here are a few photos of the bomb racks that I built several months ago:
http://i174.photobucket.com/albums/w117/2AF/IMG_3057.jpg
Boeing Y1B-17 Project--1/48th Scale


The kit racks depict (rather generally) the later style rack with a solid web between the two uprights. The YBs and earlier production variants used the type with separate intercostals as I've built:
http://i174.photobucket.com/albums/w117/2AF/IMG_3060.jpg
Boeing Y1B-17 Project--1/48th Scale


Here are all four racks, still needing most of the release mechanism and other details installed:
http://i174.photobucket.com/albums/w117/2AF/IMG_3064.jpg
Boeing Y1B-17 Project--1/48th Scale


And one of the racks test-fit into the bay:
http://i174.photobucket.com/albums/w117/2AF/IMG_3062.jpg
Boeing Y1B-17 Project--1/48th Scale


Scott