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BUSA Junkers D1 (Read 46,838 times)
 
yorcram
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Show the link to this post Re: BUSA Junkers D1
Reply #40 - Feb 18th, 2018 at 1:35pm
 
Dummy engine, still needing bolts on the cam covers.
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Reply #41 - Feb 18th, 2018 at 1:43pm
 
Working on the landing gear and found my springs were not strong enough to hold the tail.  Angry
While working out what needed to be done using bungee, i had the skid assembly break. Angry  the plywood de-laminated. Most of my ply center was a knot.   
Made a new assembly that will use bungee cord. I should be able ti adjust the tension. Thinking of leaving a hatch there for access.

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Reply #42 - Feb 18th, 2018 at 2:03pm
 
The main gear is just wire bent to take a wheel. The Junkers should have a fairing that the axle sits in so I made some spacers out of music wire and soldered them to the existing gear. The old 'wheel axles' were cut off.
To make and mount the fairing took a lil more thought as the legs would flex apart so needed a flexible connection, but firm enough to not flap around.
A simple solution was to use golden rods. I glued  a piece of the outer guide inside the four corners. Cut some inner rods about 2-2.5 inches long, in one end I drilled a hole for mounting wire in to attach the the legs. The inner rods can pull out of the faring a bit and still hold the fairing in place. In the pic you can see a bit of the yellow inner rod. Bit of paint should hide that.

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Reply #43 - Feb 18th, 2018 at 2:11pm
 
First time all together.

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Reply #44 - Feb 18th, 2018 at 2:12pm
 
Better pic of the spandau's
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Reply #45 - Feb 18th, 2018 at 2:14pm
 
Better pic of tge hatch
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Reply #46 - Feb 18th, 2018 at 2:15pm
 
Helmut Von Strapp ready for business.
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Reply #47 - Feb 19th, 2018 at 11:25am
 
Looking very nice Marc.
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Reply #48 - Feb 24th, 2018 at 7:43pm
 
So... I was worried about cutting the pushrods too short. Ended up a little long. My solution was to move the servo rails.
While cutting the rails out I slipped  Embarrassed put a 9x6 inch hole in the side of the fuse  Angry  Angry Embarrassed Tongue Angry
After a bit of %$@#& and tears I fixed the hole.

I had to re-do the tail skid and used bungee. Think I have enough tension. I figure I will need access so I built a hatch to access everything.

Installed a brace for the pushrods and added some vaseline to keep friction down.

Added some filler to spots...and the side of the fuse.  Embarrassed Tomorrow i start sanding, then glassing.

Still need to measure and order a muffler. That will mean cutting out some internal structure.  Undecided
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Reply #49 - Feb 25th, 2018 at 3:01pm
 
Gotta hate those "slips"  Angry
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Reply #50 - Feb 25th, 2018 at 3:39pm
 
Yes,  Embarrassed
Spent part of the day sanding and filling. Little bit more sanding on the wings and it will be time to glass. But first have to tidy up to make room to work abd dry Undecided
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Reply #51 - Feb 27th, 2018 at 10:20pm
 
Think I need to step back from the D1.

As i stated in an above post, last Saturday I put a huge hole in fuse. Monday the 'last bit of sanding' resulted in my sanding block slipping out of my hand and going right through one of the wings.  Cry  did the repair and letting the filler dry.
While getting the epoxy ready for my first epoxy glass attempt., found the measuring pump not working right. Got a lot of bad mixes tossed into the garbage  Angry Said the hell with epoxy and went with something familiar. started using wbp. First sides turned out ok. Tonight, the second sides rippled  Embarrassed looks like I used too much wbp.
Need to figure out if and how I can fix. I don't feel like replacing everything.
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Reply #52 - Feb 27th, 2018 at 10:45pm
 
Not laughing Marc....I feel the pain. We all get those times when nothing goes right. Step back. You'll recharge..
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Reply #53 - Mar 14th, 2018 at 6:20pm
 
Pictures show a curved hatch/fairing on the fuselage sides. I moved them forward a bit and using one for a cover for the access port to the needle valves. Securing them with magnets from old electric motors. Added a lip to ensure the cover catn't slide around.

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Reply #54 - Mar 14th, 2018 at 6:22pm
 

The guns are somewhat in the way of the top fuselage hatch. To simplify the removal, a hinge was added to the gun bases and more magnets used to keep the front secured. Guns now swing up out of the way of the hatch.
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Reply #55 - Mar 14th, 2018 at 6:27pm
 
Started installing the servos. Found the aileron pushrods too long so making new ones.
Tail feathers are in place without binding. That is a good start.
Still need to figure out where I am placing things.
Going to have to get a muffler soon and see what needs hacking out.
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Reply #56 - Mar 15th, 2018 at 1:08pm
 
Clever idea with the hinged guns. Looking very nice.
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Reply #57 - Mar 16th, 2018 at 5:31am
 
Wow Mark, When you said you need to step back was that code for a Olympic leap forward?  Grin Grin It's now painted and looking GREAT!  What a cool plane..
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Reply #58 - Mar 16th, 2018 at 5:47am
 
My "step back" last for the evening. Next night i started cutting out sections on the skin, adding filler to the spots 1mm or less and added fiberglass to the new wood. Spent a few days priming, sanding and filling, still looks like crap. But was worried about adding too much weight.

Hope to do the markings this weekend. Then add tank, rx and such.
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Reply #59 - Mar 18th, 2018 at 12:30pm
 
Wow, nice job, Mark..
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