CB-25J Mitchell

Started by George R Blair Jr · 230 · 1 year ago · 1/48, B-25J Mitchell, CB-25J, MATS, Monogram
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    George R Blair Jr said 1 year, 7 months ago:

    The goal for today was to convert the cowlings to the modified exhaust system used in the CB-25J. I determined the location for the cut-out for the exhaust pipe in the cowl flaps, and then created a hole for the pipe using a variety of a razor saw, Dremel tool, and sandpaper. I shaped the base of the Ki-44 exhausts so they would fit in the cowling, and then added them using super glue. I think they look pretty good. I noticed in the photo that one pipe is extends past the cowl flaps a little more than the other, but I have taken a vote and have decided to ignore the slight difference.

    I did a little work trying to clean up the new panel lines in the fuselage, but I keep jumping out of the line and creating a scratch that I need to fix. I took another vote and decided to quit messing around with the panel lines and move on.

    I had to cut my work time short thanks to the arrival of some severe weather. We had tornadoes just north of us, wind gusts of 70 mph, heavy rain, and egg-size hail. We didn't get any damage, but it certainly messed up my work time. This was our third round of severe weather this week. Boy, do I love living in central Texas in the spring.

    Hopefully I will get some good stuff done tomorrow. Cheers everyone.

    4 attached images. Click to enlarge.

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    Spiros Pendedekas said 1 year, 7 months ago:

    Super result so far, my friend @gblair! I agree with keeping both exhausts at the same length. Also, a wise decision to move on with "the panel line situation", looks excellent already.

    I can imagine the rough weather, here in Greece we have less aggressive phenomena and I sort of enjoy the few times the weather gets more idiosyncratic, but, I understand, the weather situation in Texas this time of the year is not always fun.

    Looking forward to your progress!

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    John vd Biggelaar said 1 year, 7 months ago:

    Your modifications on the exhaust part are great, George @gblair

    I would take the result for the both, the exhaust length and all the work done on the panel lines, as is, both look great this way.

    Can imagine the weather frustrates you, luckily you did not suffer any damage. The Netherlands usually has gentle weather, though we did have quite some rain this spring but all this is managable. No that much of extemes here.

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    George R Blair Jr said 1 year, 7 months ago:

    Thanks, Spiros (@fiveten) and John (@johnb). I could tinker and refine things on this model for another month, but at some point I just need to move on. I also used to enjoy the rain and even thunderstorms, but the weather has definitely gotten worse here.

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    George R Blair Jr said 1 year, 7 months ago:

    I feel like I am really losing momentum on this build, so today was my day to tie up loose ends and get ready to paint. I didn't quite get there, but I am getting closer. I hope that I can finish everything tomorrow and be ready to paint on Monday. I am saving a last buff with fine sandpaper and cleaning up the panel lines for the last. Cheers

    10 attached images. Click to enlarge.

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    Louis Gardner said 1 year, 7 months ago:

    George R Blair Jr (@gblair)
    I have been absent here on Imodeler lately. I'll try to go back and read your journal from the beginning, as time permits.
    It looks like you are well on your way with this one. It is also the very first conversion I have seen done like this. Thank you for sending me the pictures.

    I have plans to someday build up another family tribute build, for a B-25J pilot named "Tommy" Smith.


    He was killed on a training mission near Palawan, Philippines along with 7 other pilots (and two enlisted crew) in a B-25J on April 8th, 1945. The unit commander was flying the plane at the time, and he was teaching them how to evade AAA from enemy ships, and also practicing "skip bombing" techniques. According to the MACR crash report, the B-25 did a "Split - S" into a cloud, and the next time they were seen, nothing was left other than a floating debris field and an oil slick on the water. No survivors were seen in the water, which is close to 10,000 feet deep in this area.

    None of the crew were recovered when the B-25 hit the water and sank in the Sulu Sea. This is his tombstone on "Gardner Hill" in Pennsylvania. That is supposed to be a B-25 drawing, and the inscription reads "Lost Somewhere in the Sulu Sea".

    He was a 1st LT, and flew with the 42nd Bomb Group, 100th Bomb Squadron as part of the 13th AF.
    He was the son of one of my Grandfather's older Sisters. Grandpa was the youngest of 7 kids.

    I'll try my best to keep checking in. Looks good !

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    George R Blair Jr said 1 year, 7 months ago:

    Thanks, Louis (@lgardner). I know you have your hands full, so thanks for taking the time to stop in. It is always cool when there is a personal connection to your build. I have been researching some info on some TB-25s and a gun-nose A-20 in the Pacific. My Dad was stationed at Adak Island in the Aleutians at the start of the war, and there are a lot of really cool planes from there. There is a really interesting documentary by John Huston called Report from the Aleutians that shows some really cool planes and flying. It is available from several streaming services.

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    Spiros Pendedekas said 1 year, 7 months ago:

    Great progress and momentum build-up, my friend @gblair! Great details added, after your thorough research. Looks you are close to getting to the paint shop!

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    Spiros Pendedekas said 1 year, 7 months ago:

    Looking forward to your build, my friend @lgardner!

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    John vd Biggelaar said 1 year, 7 months ago:

    Those added details are greatr, George @gblair
    To me your momentum seems quite okay, take your time and enjoy this great kit, I would say.

    @lgardner, looking forward to that build.

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    George R Blair Jr said 1 year, 7 months ago:

    Thanks, Spiros (@fiveten) and John (@johnb). Slowly getting toward the end of the construction and then it will be time to think about painting.

  • Profile Photo
    George R Blair Jr said 1 year, 7 months ago:

    Sunday is the day we go to my daughter's house, have lunch, and play board games. But the star of the show is my 2 1/2 year old granddaughter. When I got back to the bench this afternoon, I was ready to tackle some of the remaining problems. I finished the engines and cowlings. I added the tail gunner's glass and used some putty to smooth the attachment. I wanted to add the green section to the pilot's canopy. I was able to handbrush the Tamiya Clear Green onto the gunner's glass in one stroke, which produced a perfect tint for glass. The pilot's canopy proved to be a problem child. Because of its size and shape, it took more than one stroke of the brush, leaving some bad streaks. After this first try, I discovered that you could soak the canopy in alcohol for 20-30 seconds and the green would disappear. I tried diluting the green and brushing it on with poor results again. I decided to airbrush it for my third try. I used a portable airbrush I got during the Christmas sales on Amazon a couple of years ago. It was only $20 on sale. It works great, is easy to clean, and sprays great..providing the paint isn't too thick. The green seemed to spray fine, but it had some large white lines after it had dried. I think it had something to do with the alcohol. My last try was with full strength green from a new bottle. It did better, but there are some dark areas that I want to try to fix. I plan to let it dry completely and then use alcohol to eliminate the dark spots. If it doesn't work, another alcohol bath is in the future. This clear Tamiya is very sticky until it is dry, so I completely disassembled my airbrush and cleaned it to be sure none of the Tamiya dried in the nooks and crannies of the airbrush.

    Last thing I did was dry fit the top of the nose section. The bottom of this section was pinched in at the top when I assembled it to the fuselage, but I thought the fuselage would fix that. When I checked the glass, it was significantly wider than the most forward part of the nose compartment. I can use my dividers to hold the compartment at the proper width while the glass dries. Hopefully the glass will be strong enough to hold the compartment at the proper width.

    Well, more tomorrow. I hope to get everything ready to paint tomorrow. Yeah. Cheers.

    8 attached images. Click to enlarge.

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    John vd Biggelaar said 1 year, 7 months ago:

    A pity the green is giving you such a hard time, George @gblair
    On the tail gunner canopy it does look perfect so I'm sure you will the other done nicely as well.
    Great technique on using that divider.

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    George R Blair Jr said 1 year, 7 months ago:

    Thanks, John (@johnb). I haven't glued the glass on the top of the forward section yet. I am hoping the glue bond between the glass and the lower section will be strong enough to fix the problem. If its not, I may need to put something non-scale to hold the sides apart. More fun.

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    Spiros Pendedekas said 1 year, 7 months ago:

    Clear colors have always giving me issues, my friend @gblair. The gunner's top looks perfect and I hope you find a solution for the pilot's section. Great trick to use the dividers.