Trio of Hudsons in 1/72

Started by George R Blair Jr · 355 · 10 months ago · 1/72, 3D printing, Italeri, Lockheed Hudson, MPM, Revell
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    George R Blair Jr said 1 year ago:

    Thanks, Matt (@matthewfdyer). Since I am using the Revell kit as the pathfinder through these kits, I can also use the pictures to remember what I did in the first plane. I know MPM made the nose section separate so that they could use the same molds for other versions of the Hudson, but it sure makes me nervous to be filling and sanding that close to windows. Airfix made their Hudson with a one-piece fuselage and nose compartment. I wish MPM had done that. Cheers.

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    Carl Smoot said 1 year ago:

    George (@gblair), one thing I found out is that with care, clear plastic can be worked almost the same as regular styrene as long as you have very fine sandpapers and polishing compounds. More than once I've completely obliterated the clarity of clear parts , getting them to blend into the fuselage of some model. Or like my recent A-20 build where I made wingtip lights from clear plexiglass rod. It can be a hassle when the clear parts are damaged but in the end, it can be repaired. You probably knew all this already, but I mention it for the benefit of others who may not be aware of this.

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    George R Blair Jr said 1 year ago:

    Hi Carl (@clipper): I have had to gradually work clear plastic back to clarity before, but I have never had to do it on plastic this thin. The clear plastic was only about 1mm thick when I glued it to the much thicker plastic of the fuselage. The joint between the upper and lower part of the nose wasn't really good, so I knew I would be filling and sanding along the length of the nose. That's why I wanted to reinforce the clear plastic with some plastic strip. I could imagine how much flex would occur along the length of the nose as I sanded it. If it all works, then great, I will use it for the other two. If not, back to the drawing board. I really wish MPM made the nose in this kit like Airfix did in theirs.

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    George R Blair Jr said 1 year ago:

    After several days of having little time to build, I was able to get some stuff done on my lead Hudson. I needed to do the fill-sand-repeat on the nose and fuselage join. I wanted to keep the glass unharmed, so I protected all of the glass windows in the nose with masking tape. This makes for a very unsatisfying sanding experience, as well as shredding the tape. After spending a lot of time not getting much done, I decided it would be less work to sand everything, including the windows, and then restore their clarity later. It turned out to be a good call. It took only a half hour to sand all of the joins and restore the clarity of the nose windows. I started gluing the wings and tail surfaces together, which all fit very well. I can't say the same for the nacelles. There is an 2-part inner portion of the nacelles that serves as a base for the engines that doesn't fit very well and will require some filling and sanding. I haven't tried the 2-part nacelles yet. I would like to get the canopy, wings, and tail section done on this Revell kit, and then bring the other 2 up to the same place. Should have more tomorrow. Cheers.

    3 attached images. Click to enlarge.

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    Spiros Pendedekas said 1 year ago:

    Excellent progress and ditto results so far, my friend @gblair! Yes, sanding everything and polishing afterwards is the way to go. Awesome job on the challenging fit of the nacelles.

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    John vd Biggelaar said 1 year ago:

    The polishing turned out really nice, George @gblair
    Never tried polishing glass till it looked transparant again myself, must be taking quite some time.

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    George R Blair Jr said 1 year ago:

    Thanks, Spiros (@fiveten) and John (@johnb). I anticipated a lot of work bringing the glass back to clarity and shine, but it was easier than others I have done in the past. I have a sanding stick that has four grits on it, from a medium grit down to a very fine grit. This sanding stick, which is designed for women's nails, was purchased at a store for hair and nail products named Sally's. You can also get them on Amazon. The coarsest grit is probably around 200 grit, and the finest is probably around 1000 grit. I sanded the filler smooth using the coarse grit, then worked down through the other three grits. I was wet sanding everything. I was clear and shiny by the time I got to the last grit. I finished up by polishing the glass with my T-shirt. We will see soon if the other 2 models work the same.

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    Spiros Pendedekas said 1 year ago:

    Excellent process, my friend @gblair!

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    Carl Smoot said 1 year ago:

    Nice work George (@gblair). I see that you decided to go the sanding the entire window route. I think this was a good call. There are a couple of things you can do to get even more clarity. Purchase a set of ultra fine sanding sticks (2000 to 7000 grit). MicroMark sells a set and there are some off brand Chinese versions on Amazon. Polishing with a paste afterwards will also help. And finally, apply a coat of Future (Pledge) acrylic floor polish. Practice first, but these help even more.

    As for the cowling, you could do a couple of things here. If you have any Milliput (or Green Stuff or another I think is called ASculpt) epoxy putty, mix a small amount and press it into the seam using a toothpick. Be sure to get it as level as possible. After it cures, do a light sanding and if any additional work is needed, use Mr Surfacer 500 and wipe away after its dry. The light sanding of the putty is relatively easy if the putty was pressed into the seam sufficiently. The Mr Surfacer trick will make up any remaining issues. This avoids having to do any heavy sanding in this difficult area.

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    George R Blair Jr said 1 year ago:

    Hi Carl (@clipper): It was difficult to sand the seams on the nose section and stay clear of the glass panes, so sanding the entire nose section really saved some time. I was waiting to do the last polishing until I was done working on the rest of the fuselage and wings. There is always a chance that the nose could pick up some construction damage until all of the rest of the plane is done. I have a couple of sets of the very fine sanding sticks, so I will use them just before painting. I sometimes wait to apply Future until I have painted the plane, and then I apply the Future to the window panes with a brush. I have had trouble before with the canopy masks pulling up some of the Future when I remove the masks. It doesn't always happen, but in this case I think I will wait until I remove the masks. I used Future on the inside of the nose section, and I also plan to dip the canopy in Future before I apply it.

    I don't think the cowling will need anything other than Tamiya putty. There aren't huge holes to fill, just a bunch of seams that are in some inconvenient places. This inner cowling will be hidden by the engine and outer cowling, so I think it will be fine. The outer cowling is in 2 parts, so I am sure there is more fill and sand in my future.

    One of the cool things about using this plane as my "lead" model is that I can use these techniques, and then adjust them on the next two it they don't work well.

    Looking forward to the rest of your Hudson build.

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    Carl Smoot said 1 year ago:

    Those are all good points about waiting until later in the construction, and these are what I do as well. I neglected to mention that in my post. The main recommendation for the epoxy putty versus Tamiya putty was that it can be pressed into place to minimize sanding in that difficult area. It is also more resilient than Tamiya putty.

    It's pretty neat having two of these projects going at the same time.

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    George R Blair Jr said 1 year ago:

    Hi Carl (@clipper): I still have several Airfix Hudsons, so I am taking notes on yours.

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    George R Blair Jr said 1 year ago:

    Checking off a lot of small things as I lurch toward painting. I did some prefitting today to see how everything will go later. It looks like a mixed bag with some fitting well, and some not so well. MPM apparently released this kit in several different versions, but left all the alternate parts on the sprue. So I have plenty of alternate parts for my other builds.

    6 attached images. Click to enlarge.

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    John Healy said 1 year ago:

    Nice work on the glass polishing, George. Your side window installations look super clean too.

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    George R Blair Jr said 1 year ago:

    Thanks, John (@j-healy). I hate working with glass, since it is so easy to do something tragic. I am working out what I want to do on this "lead" ship, then I use the procedures on the other two. Cheers.