Orlik PBJ-1H Mitchell

Discussion in 'Aircraft & Aviation' started by Bomarc, Jan 26, 2010.

  1. Elliott

    Elliott Senior Member

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    I think you called it Mike. This has been an epic in every way. There's always a bit of a letdown as the pace slows and focus shifts to......what? I think you told us somewhere, just have to go back and find it. Oh darn, means looking through the thread again. :p
  2. Bomarc

    Bomarc Member

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    Actually Elliot, I never said what the next push will be, mainly because I'm not sure myself. I have a few things in the works, one for a friend included, but coming on the tail end of this build, you can be sure of one thing, it won't be a monumental project. I'm good for one of these once a year (or more). ;)

    These last “tidbits” of this current build are really time consuming, but I supposed it’s the path I laid for myself, can't drop the ball now. Work continued on the doors last night. I actually used the kit parts for the hinges, just not quite as advertised:

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    Still, they look pretty good. Scratched the part that will attach to the inside of the wheel well and painted them up:

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    Tonight was the linkage. Only one pic as I was too in the “zone” with these tiny parts:

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    It’s a double jointed affair that hinges off the “A” frame member that attaches to the main strut (it’ll be more clear when it’s all attached). Also started the brake lines of the main struts. I finally made a run today to my local Radio Shack to get some thicker solder, which was what was holding me up on this bit:

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    The stuff I used on the engines and elsewhere was 0.015” and was too thin. The above is 0.032” and is rosin-core. That’s what you want because the stuff is essentially a tube filled with the rosin, which you can ream out with a drill and attach with CA glue to a wire:

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    Once you attach a wire, you can stack little tubes on it to simulate the fitting, like this:

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    And I’ll drag out this old chestnut for comparision:

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    The hope is to get the entire landing gear installed this weekend, then a mop up operation with all the other little things, and then final pictures….

    Mike
  3. Elliott

    Elliott Senior Member

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    I declare - "Patience, thy name is Bomarc!"

    How difficult is it to ream out the rosin core? Looks like it would be hard to start. Once installed the brake line on the wheel looks perfect! :thumb::thumb:
  4. ennder

    ennder Member

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    Bomarc, you are truly a master :inw:
    I just read through this thread and
    learned a ton. Thank You Sir.
  5. Bomarc

    Bomarc Member

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    Not difficult at all. You can slice this stuff with a hobby knife, and it leaves a flat end behind. Then you can see the ring of rosin in the middle (like cutting a tree). That's where to jab the drill to get started.


    Heading for the home stretch, the light is blinding on this end of the tunnel! Finished fabricating all the LG parts. Before and after touch-up painting:

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    The brake lines are to the left. They got progressively shorter as the day wore on. The point of no return was upon me, time to stick it all together. I used JB Weld again, this the quick set stuff (hardens in about 10 minutes):

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    Note the length of the brake lines now. Helps to have the wheels in place to check alignment:

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    Go to go:

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    Next, the doors. I think the need for the double jointed connection is apparent, pretty complicated:

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    Nose strut, you can just see the epoxy “seat”:

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    With the epoxy hard and everything stiff, it was time to take away the cutting mat for a flat surface to set the wheels for good:

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    I think I have but one update left in me……

    Mike
  6. Bomarc

    Bomarc Member

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    As I feared, this will be my last construction update for this build (spontaneous roar from the peanut gallery). Just had few last tidbits last night and this morning. Last night was the bomb bay doors. Added the hinges again using the kits parts but modified:

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    This isn’t exactly how the hinges are in reality, but it works for the model. All hooked up:

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    I discovered I had reversed the direction of the little crank that opens the doors way back when I put it in, so now the arms are in the wrong configuration. Oh well! Wasn’t the first screw-up on this model, but it may well be the last (for this model anyway). Next was the rear hatch/ladder. Totally discarded the Orlik parts and made my own. Thin solder makes good ribbing:

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    Installed (with the real deal inverted for comparison).

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    This morning was the radio antenna. I have this stuff:

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    I don’t know why. I think I bought it at an IPMS convention years ago. I believe this the “in” thing for biplane rigging back in the day. Maybe it will work for antenna wire. Totally on the fly, I tied and CA glued two strands to a piece of music wire, using the kit parts as a guide:

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    Sunk that and another wire into a block of wood, spaced appropriately apart, and tied off the other end:

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    Wrapped the paper parts around, and superglued the heck out of it:

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    Well, I would have laid even money that wouldn’t have worked. Might have to remember that for next time.

    Some last little things. The pitot tube:

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    I also had some last bits to add to the engines that I never got around to. Remember these two?

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    Added the propeller governors on top of the crankcases (hard to see, they’re black). Also added a manufacturers data plate to the side of each crankcase for that extra touch.

    Last was the little venturi thing that’s on the side of the nose. The real deal, lower right:

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    It sucks the smoke out of the nose compartment when the guns/cannon are fired. I carved it out of two chunks of superglued mat board:

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    While the paint was drying on that, I added a little handle that I forgot last night on the ladder:

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    Then added the venturi:

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    All that’s left is the attachment of the engines/propeller, and I’m essentially done. There’s one tube like thing that sits on top of the gun nose that seems unique to the Marine PBJ’s, but I don’t have any good details on it (Orlik just has a tube). It looks like it has wires coming out of it, maybe some kind of sighting device? I can add it on later when I know more. Frankly, it kind of ruins the lines of the airplane, if “8-Ball” lost hers in a taxi accident of some sort, well…...

    Next post(s) from me should be some glamour shots, hopefully tonight.

    Stick around, the best part is just around the corner……….

    Mike
  7. Bomarc

    Bomarc Member

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    Victory Roll

    Without any further ado:

    I present the North American PBJ-1H Mitchell in 1/33rd scale. Kit by Orlik, "enhancements" by me. Enjoy:

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    One behind the scenes shot:

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    If there are any other views I missed, let me know, I'll try to take them. Final observations and comments later, I'm taking a break!
    Mike
  8. sjsquirrel

    sjsquirrel Member

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    Inspirational to say the least.

    Absolutely fantastic Mike! I've learned a great deal from this thread. Thank you.

    I've got several commercial kits that I haven't built yet, and when they do get built they'll be better as a result of this build thread.

    Thanks again,

    Steve
  9. Elliott

    Elliott Senior Member

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    Couldn't say better than that Steve.

    Congratulations Mike, my friend. Congratulations!

    Standing ovation with sustained thunderous applause, cheers, whistles, handkerchiefs waving in the air, women fainting (gotta have that) and multiple cries of "Bravo!" and "Encore!"

    :goldcup:
  10. Padre

    Padre Member

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    Well, looks like I will never build this one. If I did I would constantly compare it to this and probably throw it away.:curse:

    Excellent build, amazing details, can't find any other words.............:thumb:

    I will try this build and TRY to do a least as half as good.:rolleyes::cry:
  11. -Jim G

    -Jim G Member

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    Mike,
    Thank you so much for making this thread. It has been very educational, and entertaiining to follow along. That is a beautiful model!
  12. Bomarc

    Bomarc Member

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    End Game

    Thanks all for the good thoughts. Some last view I took before I collapsed my photo shoot set-up:

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    I guess that's it folks. I posted a final "parting shot" post over at Papermodelers. Rather than cut-n-paste, I'll just point you all there:

    http://www.papermodelers.com/forum/119877-post1288.html

    There's a cool video at the end too. Needless to say, the sentiment express there applies equally here: Thank you all, and I hope your next build is a spectacular one (I know it will be).

    Mike
  13. Elliott

    Elliott Senior Member

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    Mike,

    Thank you, and Peter Taft, for sharing such a landmark build with us. It has been my privilege to contribute, in whatever small way, to your magnificent Mitchell. Your ending remarks are appropriate and appreciated by all I'm sure and the video at the end - how fitting!
  14. gregh

    gregh Member

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    Enjoy we shall. Just SUPER SUPER SUPER. Now we know who the landing gear expert is :). Thnak You for the build thread, learned a lot, and the great pictures !!!!!!
  15. Falsemuzzle

    Falsemuzzle New Member

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    yes sir! could'nt have said anything better myself...thank you.
    :goldcup:
  16. peter taft

    peter taft Senior Member

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    Well Mike, i really can't say how it makes me feel to see this beauty ROLLED OUT - i said quite a lot over on paper modellers, and my getting all emotional at things ending is still the same here. I was soooooo pleased you came over here to Zealot to share your marvel with the rest of this community. You have become a very good friend to me and lots of other guys i am sure. Look forward to being BOMARC'd again. :thumb: :wave:
  17. ekuth

    ekuth Guest

    My gob is well and truly smacked.

    I've been following this and just waiting until it was complete to say:

    MODEL OF THE WEEK!!!!!!!!!!!!!!!

    (hmmm.... I need to make a Model of the Month. Year? Decade? This would fit any and all of the above.)

    Master craftsmanship at its best; and a gift to all the members here.
    Last edited by a moderator: Jan 29, 2014
  18. -Jim G

    -Jim G Member

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    Mike,

    Thanks again for allowing us all to watch your great build. I really like the closing words you posted at PM.

    When I viewed the Youtube: Japanese Surrender I felt that I had to tell everyone of one of my acquaintances:

    I ice skate with an old gentleman on Sunday mornings during the winter. He told me that he is the last surviving member of his B-29 aircrew (he was a gunner). He participated in the Japanese Surrender Ceremonies as part of the 1000 aircraft formation that overflew the Missouri.
  19. Bomarc

    Bomarc Member

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    What to say?

    As is the usual term used by our friends in the UK, color me gobsmacked as well! Thank you Chris. I'm honored, and while I'm sure you were just musing, to be clear, let's keep it as POTW. I fear anything longer would quickly become an eyesore.

    And thanks to all for the kind words. Much appreciated.

    -Jim G, thanks for that outstanding story on the surrender fly by. I'd like to think "8-Ball" was part of that, as I'm sure every pilot in the hemisphere would want to be in on that historic day!

    Mike
  20. twinslet

    twinslet New Member

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    Great idea on the diamond quilt. Perfect for the interiors of those Huey's and Blackhawk's. I used a similer kitchen utensil on thin modeling clay for helicopter interiors, but this would be thinner. Is it pretty manageable? BTW - enjoying the build alot. Thanks for the great pics.