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JW Büker Jungmeister build

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JW Büker Jungmeister build

Old 05-22-2022, 12:21 PM
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mitchilito
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I made a .045 layup of fiberglass to replace the piece that goes on the very front of the fuselage. The original wasn't sized to my liking. Then, while I was at it, I decided to fill in the simulated "fuel tank" lines on the top forward of the fuselage. Unless these areas are executed perfectly, they just wind up looking crappy so I decided to eliminate them. My feeling about this is that there are so many other concessions in this kit that compromise scale fidelity that this one won't make much difference. Obviously I'm not a scale fanatic!




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Old 05-22-2022, 12:27 PM
  #52  
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I needed to work on the smoke and fuel tanks before I glued on the firewall pieces. The smoke tank I'm using is smaller than the kit-supplied gas tank so it took some mods to make it work.



Reducer intalled in the front portion of the smoke tank mount. Plus you see I added some rubber padding.


I like this tank mounting method.
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Old 05-22-2022, 12:32 PM
  #53  
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And it's finally time to glue on the front of the fuselage. I just retired so I have lots of time to work on these projects. I doubt it will be long til this thing is flying.


This part of the build is pretty fun. All the parts automatically place themselves perfectly. Fun!
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Old 05-23-2022, 07:52 AM
  #54  
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Time to fill all that daylight in the front frames. The written instructions call out Balsa Wood pieces to fill, but the kit comes supplied with STYROFOAM. IMO styrofoam is good for one thing: stuffing packages for shipping. SO: I pulled out some high-density blue foam to use. The main reason I prefer blue foam is because it sands better and is much more durable. I think blue foam is the absolute perfect material for this application: light but STRONG, and will make a durable surface to glass up.




Styrofoam in the foreground and some of the blue foam I will use above.

Lots of space to fill with foam

Last edited by mitchilito; 05-24-2022 at 03:18 AM.
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Old 05-26-2022, 03:14 AM
  #55  
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Ran out of blue foam on the top but I had some similar density pink foam for the bottom.




The factory supplied packing material ☺️
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Old 05-27-2022, 06:55 PM
  #56  
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Do you clean the foam out or does it stay there after fiber glassing?

Last edited by tmac48; 05-28-2022 at 01:48 AM.
Old 05-29-2022, 01:35 PM
  #57  
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It stays and adds a bunch of strength. Doesn't add much weight but the weight it does add is in the nose where it's needed.
Old 05-29-2022, 04:48 PM
  #58  
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Ok,thanks
Old 05-30-2022, 09:54 PM
  #59  
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You must have sanded the front by now!!!
Old 05-30-2022, 09:57 PM
  #60  
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11 weeks wait on my kit.

Last edited by tmac48; 05-31-2022 at 04:02 PM. Reason: mistake
Old 06-02-2022, 01:02 AM
  #61  
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Actually, I took a little time off from the Bucker because I'm putting a Sig Rascal 110 together for my gas-converted OS Gemini Twin. See the conversion here:

OS Gemini Twin Rear Walbro Gas Conversion

As you'll see in my conversion thread, I had one a while back. Unfortunately the radio quit and I lost it. Since then I've been missing it like crazy. Plus I needed a home for my gorgeous Gemini!

Old 06-02-2022, 01:03 AM
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Originally Posted by tmac48 View Post
11 weeks wait on my kit.
Do you mean you've been waiting for 11 weeks, or you will have to wait 11 weeks?
Old 06-02-2022, 03:49 PM
  #63  
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Originally Posted by mitchilito View Post
Do you mean you've been waiting for 11 weeks, or you will have to wait 11 weeks?
Sorry about that, just placed the order, so most likely another 10 weeks now.
Old 06-04-2022, 06:03 PM
  #64  
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Will be waiting to see how you do the wing to fuselage fairing. I believe on the older kits these were supplied as a fiber mouldings..

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Old 06-05-2022, 12:19 AM
  #65  
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The "older kits" were by a different manufacturer and an entirely different beast. I have a friend that built one and flew it for 8 years. That kit had a finer scale fidelity. His is actually the one you see on Voglesang's website in the JW Bucker gallery - which is funny considering it isn't even a JW kit!I. It's the one in yellow Swedish livery.

I'm not a scale fanatic so I don't mind the concessions to scale accuracy much, but I don't really care for the oversized cabane struts (that go from the fuselage to the top wing). I may make a proper sized set some day.

Here's my friends Bucker. Notice the smaller cabanes:


Last edited by mitchilito; 06-05-2022 at 12:26 AM.
Old 06-05-2022, 02:16 AM
  #66  
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I must admit that I'm definitely not an expert when it comes to the Bucker, not having seen that many full scale examples to be able to pick up a lot of the scale details but would love you to show me the two different cabanes as a direct example when you get a moment, not trying to distract you from your build though.
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Old 06-09-2022, 05:10 PM
  #67  
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Just had a thought. Seeing that there isn't any fibre fairing fuss to wings, reckon you could make a mould from yours and then you could sell some!!!




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Old 06-14-2022, 02:47 PM
  #68  
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Progress! I finally got my gas convertet Rascal 110 dialed-in and flying fantastic (I’ll attach the maiden flight but you’ll have to put up with the crappy iPhone 13 video going out of focus and my hoarsing around with the pitch and engine settings. It was a maiden flight after all) and can get back to work on the Bücker:



Foam epoxied and taped.

Here’s the Rascal. A more fun project I’ve never had. The Gasoline Gemini engine is a dream!



Last edited by mitchilito; 06-14-2022 at 02:53 PM.
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Old 06-15-2022, 03:46 AM
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I meant to show how I pre-sanded the whole front end PRIOR to gluing the foam in. The plywood front end is HARD to sand and the foam would undoubtedly be in harm’s way. Here’s the bottom prepped for foam:





Forgot to throw this picture in here.

Last edited by mitchilito; 06-15-2022 at 01:46 PM.
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Old 06-15-2022, 01:44 PM
  #70  
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Almost ready for glassing




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Old 06-18-2022, 01:44 PM
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I was curious how this beast is going to fit in my Ford Transit so I tossed it in there! It doesn't have the rudder or cowl but I found out what I needed to know: it will fit no problem.

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Old 06-19-2022, 04:37 PM
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Here it is after 3 plies of 6oz/sq.yd fiberglass. On the top I staggered the layers starting 1/4 inch back of the foam on the fuselage so it would feather in without a hump. On the bottom all three plies butt up against the plywood just aft of the foam. And then a LOT of sanding to get it all smoothed out.



here's the glass weight conversion


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Old 06-19-2022, 06:38 PM
  #73  
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Yep, looking great, just slow down a bit and let me catch up to you when my kit arrives!!
Tmac48.
Old 06-20-2022, 02:36 AM
  #74  
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Ha! Didn't you say 11 weeks? I should be flying this thing by then!!

I'll be covering very soon. I pretty much decided on Stewart Systems for the covering and then my good buddy covered his 1/4 scale Spad using it and I loved the way it worked. Can't wait!

Last edited by mitchilito; 06-20-2022 at 02:39 AM.
Old 06-20-2022, 04:30 AM
  #75  
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Well then make sure you document all of the build and make my journey less fraught with danger!!
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