JW Büker Jungmeister build
#227

#229

Trying to get ready to cover this beast but the weather's been too nice here to stay cooped up in the shop! So it's been golf golf golf. Turns out retirement is pretty fun!
It was time to tackle the servo installation in the tail. The openings in the fuselage need to be raised and widened for my installation so that's what you see here. It turned out to be easier to just plug the factory holes and start over so that's what I did. The openings have to he HUGE because the ball joints and all the hardware run inside the openings. But for cover I don't think I will cut them all the way out. Might just slit the Dacron. We'll see.

Here you see just how wrong the openings are.

View from the outside with a rough idea how high they need to be raised.

So I decided to just plug and start over.
It was time to tackle the servo installation in the tail. The openings in the fuselage need to be raised and widened for my installation so that's what you see here. It turned out to be easier to just plug the factory holes and start over so that's what I did. The openings have to he HUGE because the ball joints and all the hardware run inside the openings. But for cover I don't think I will cut them all the way out. Might just slit the Dacron. We'll see.

Here you see just how wrong the openings are.

View from the outside with a rough idea how high they need to be raised.

So I decided to just plug and start over.
The following users liked this post:
tmac48 (10-31-2022)
#230


I will run into the same problem with the elevator, but I installed the large mount (that is too big for my rudder servo) and was hoping to be able to make a another mount that will glue to the bottom of it, this should then line up with the kit cut-outs.
The following users liked this post:
tmac48 (11-01-2022)
#232


Need to thank you on heads up about the rear blind nut for the undercarriage anchorage..
It looks like I may be able to get by with the elevator servos, will not require a lot of opening up if any at all.


It looks like I may be able to get by with the elevator servos, will not require a lot of opening up if any at all.


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mitchilito (11-10-2022)
#238

It's good to see my thread is coming in handy!
#241

And I don't know about yours but my fuselage sides just aft of the foam didn't come together quite right - I chronicled that in the thread.
Best of luck and keep posting!!
EDIT: After looking at your pictures closely it appears that you can and do need to sand your wood parts down to the foam. I recall now that I sanded all my formers to plane BEFORE installing the foam so it wasn't an issue:

Look closely: all front formers sanded to plane.
Last edited by mitchilito; 11-16-2022 at 02:36 AM.
#242


Thanks for your reply. I have studied your build thoroughly and after you sanded that former you later added it back. I think the best thing for me to do will be to add fill to the foam then if I need to I can always sand it off latter. Once again thanks for your assistance. My wife has made a start on the pilot.


#244


The bottom foam job looks like being a disaster!! Guess I will need to dig it all-out and start over. Will be a pain without the originals to copy!!
#246

Thanks for your reply. I have studied your build thoroughly and after you sanded that former you later added it back. I think the best thing for me to do will be to add fill to the foam then if I need to I can always sand it off latter. Once again thanks for your assistance. My wife has made a start on the pilot.
I'd be curious to see this area of your fuselage to see how yours looks.

#247


Mitch very sorry about that poor choice of words. I was referring to the 10 x 18 side stringer. I think I added the filler piece as per what you did. My biggest mistake was in how I handled the transition of the round of the front to the flat section of the rear. Also the addition of body filler to fill the gaps was a complete failure!!




#248

Mitch very sorry about that poor choice of words. I was referring to the 10 x 18 side stringer. I think I added the filler piece as per what you did. My biggest mistake was in how I handled the transition of the round of the front to the flat section of the rear. Also the addition of body filler to fill the gaps was a complete failure!!
And as for that part of the kit that has the misaligned wood parts. . . . .I wonder what the heck JW was thinking

#249


Yes mitch you are right about the filler that I used, all too late now. I have ripped all the foam out and will start over when I procure some more. Luckily for me the top section went ok and will be just fine when glassed. Will get her done one way or another!!
Meant to ask, looks like you filled in around the forward top centre section mount as well?

Meant to ask, looks like you filled in around the forward top centre section mount as well?

Last edited by tmac48; 11-19-2022 at 06:34 PM.
#250

Yes mitch you are right about the filler that I used, all too late now. I have ripped all the foam out and will start over when I procure some more. Luckily for me the top section went ok and will be just fine when glassed. Will get her done one way or another!!
Meant to ask, looks like you filled in around the forward top centre section mount as well?
Meant to ask, looks like you filled in around the forward top centre section mount as well?

you can see my glass sheet top forward. No foam underneath.