JW Büker Jungmeister build
09-23-2022, 01:07 AM
#201
So all the basic assembly of the aircraft is DONE. I still have a bunch of detail work to do (install seat, instrument panel, some radio gear etc) and then finish sand/prep for cover. I have to hand it to JW: because of the CNC/CAD design, without much trouble the aircraft builds up perfectly rigged in every respect. Fantastic.
I needed my workbench for a different quick project so I had to move the whole aircraft off of it. I couldn't believe how light the whole thing is (minus tail feathers). This aircraft is INCREDIBLY lightly built. It is also a little bit more fragile than I'm used to. It probably won't take a lot of abuse out at the field but then it's meant to fly, not bang around. Here's a pic of it standing on its nose. The picture can't capture how huge it looks in my shop. It FILLS the whole car bay it's standing in.
BIG
I needed my workbench for a different quick project so I had to move the whole aircraft off of it. I couldn't believe how light the whole thing is (minus tail feathers). This aircraft is INCREDIBLY lightly built. It is also a little bit more fragile than I'm used to. It probably won't take a lot of abuse out at the field but then it's meant to fly, not bang around. Here's a pic of it standing on its nose. The picture can't capture how huge it looks in my shop. It FILLS the whole car bay it's standing in.
BIG
Last edited by mitchilito; 09-23-2022 at 01:13 AM.
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Steve (10-11-2022)
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SHANEC (09-25-2022)
09-23-2022, 03:17 PM
#207
Originally Posted by mitchilito
Oh man, that is gorgeous. What manufacturer? Where’d it go?
09-24-2022, 01:43 AM
#208
Originally Posted by tmac48
Mitch it was a Peter Barth 1/3 scale, unfortunately I got a little too overconfident with it and it was rolled over onto its back in a severe cross wind landing and seeing that I had a second one 3/4 built I decided that it was to go to the scrap heap.
My little Phoenix YMF is a fantastic and fun toy airplane, but it's more "cartoon scale" than actual scale. But it's so easy to transport/assemble/store etc that it's absolutely one of my favorite models ever. Plus it flies GREAT Yes, I really like it.
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Steve (10-11-2022)
09-27-2022, 03:05 AM
#212
Tons of detail work to finish prior to cover. I tend to leave a lot of final finish work undone as I build so I've got to address all that now.
Here, I've pinned the cabanes. The plans show wood screws pinning the brackets in but I couldn't figure out how that could work: if you drilled the proper size hole for a wood screw through the cabane (and thus the aluminum fitting) then when you tried to screw the wood screw in, the fitting would stop the screw immediately. My solution was to drill and tap the holes then use 3mm button head bolts epoxied into place. I really like the way it worked.
On a related note, the wing struts don't get the fittings pinned because they are ALWAYS under compression. Well, using that rationale, the exact same thing applies to the fore and aft cabanes - but NOT the diagonals. So only the diagonals really need pinning. Food for thought.
All heads to the inside of course.
Here, I've pinned the cabanes. The plans show wood screws pinning the brackets in but I couldn't figure out how that could work: if you drilled the proper size hole for a wood screw through the cabane (and thus the aluminum fitting) then when you tried to screw the wood screw in, the fitting would stop the screw immediately. My solution was to drill and tap the holes then use 3mm button head bolts epoxied into place. I really like the way it worked.
On a related note, the wing struts don't get the fittings pinned because they are ALWAYS under compression. Well, using that rationale, the exact same thing applies to the fore and aft cabanes - but NOT the diagonals. So only the diagonals really need pinning. Food for thought.
All heads to the inside of course.
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Steve (10-11-2022)
10-03-2022, 01:37 AM
#213
Details details details. Mounted the instrument panel today. I purchased this panel when I bought the plane from Voglesang Aeroscale. They claim "museum quality." I'm not sure about that, but it IS gorgeous. It was surprisingly pesky to install but in the end I am very happy with it.
Last edited by mitchilito; 10-03-2022 at 04:31 AM.
10-05-2022, 02:38 AM
#214
Now the pilot installation. As I said many times, I'm not a real scale buff HOWEVER I can't stand to see a beautiful airplane fly buy with nobody in the cockpit!! Just looks wrong to me. However, I don't really need a fully scaled cockpit to make me happy. I'm "stand-off scale" all the way.
However, I did begin the process of installing a seat I bought from Voglesang Aeroscale. After setting that and the 3' tall pilot in place, along with all the needed structure, I just couldn't bring myself to do it! I know many small buffs will hate my idea I decided to install a cockpit floor and a pilot bust instead. Some day, I suppose, if the next owner of this plane wants a scale cockpit the floor is easily removable.
I had the PERFECT piece of floor material kicking around. I made several of these composite plates of carbon sandwiched foam a while back for another project. Strong but super light. Read the captions for further explanation. I will say this right now: this process saved me at least a half pound, maybe more. And that's weight behind the CG which I do not want.
Plate before trimming
Weight of plate after trimming
Weight of seat. This does not include substantial installation structure
Plate slides back into recepticals in back. Plate is easy to remove/install
I will cut a hole for the pilot to pass through of course.
However, I did begin the process of installing a seat I bought from Voglesang Aeroscale. After setting that and the 3' tall pilot in place, along with all the needed structure, I just couldn't bring myself to do it! I know many small buffs will hate my idea I decided to install a cockpit floor and a pilot bust instead. Some day, I suppose, if the next owner of this plane wants a scale cockpit the floor is easily removable.
I had the PERFECT piece of floor material kicking around. I made several of these composite plates of carbon sandwiched foam a while back for another project. Strong but super light. Read the captions for further explanation. I will say this right now: this process saved me at least a half pound, maybe more. And that's weight behind the CG which I do not want.
Plate before trimming
Weight of plate after trimming
Weight of seat. This does not include substantial installation structure
Plate slides back into recepticals in back. Plate is easy to remove/install
I will cut a hole for the pilot to pass through of course.
Last edited by mitchilito; 10-05-2022 at 02:43 AM.
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Steve (10-11-2022)
10-05-2022, 02:48 PM
#216
Mitch this is a pic of the pilot my wife made for the 1/3 Waco, she will be making me a 1/2 scale one for the BUCKER. If you are not going to use the seat is it the 1/2 scale one and would you be interested in selling it? if so would gladly take it off your hands.
10-16-2022, 01:19 PM
#219
Originally Posted by mitchilito
Yep, you are doing it mostly like I did. This is a interesting part of this kit design. Not my favorite.
Yes very tedious, firstly you need to sand the bevel and when you are happy with that you then cut the strip to length, doable but a lot of them, need to listen to some music, have a coffee and try and enjoy the ride!!
Getting a bit done.
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Steve (10-17-2022)
10-17-2022, 03:20 AM
#221
Originally Posted by mitchilito
Holy cow, I better get going on mine. I cant let you catch up!
No need to worry, I'm very happy to sit back and let you work out the hard bits so I don't have to
10-26-2022, 03:23 AM
#224
[QUOTE=tmac48;12748779]Every time I get to a point that I just can't figure out what to do next I hit the computer and study your build thread and all refreshed get back at it!!
That was the whole idea! I'm glad it's helping. Work on my end has been spotty at best lately but yesterday I got some stuff done. Pics to follow soon.
That was the whole idea! I'm glad it's helping. Work on my end has been spotty at best lately but yesterday I got some stuff done. Pics to follow soon.
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tmac48 (10-26-2022)
10-27-2022, 06:32 PM
#225
Mitch, thought you may be interested in these items in 1/2 scale that I'm getting from UK ( Tailored pilots ) My wife will do the rest. You can order one fully clothed and painted if you wish.
