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Very Hot Topic (More than 25 Replies) Aeronca 7C Champion kit #311 (Read 1435 times)
Kaintuck
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Re: Aeronca 7C Champion kit #311
Reply #63 - Jan 24th, 2023 at 2:41pm
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thank you tk, new thoughts, i will try it soon, i stepped over to the Megow Ranger built as i do have wood for it right now~wow, this thing is a TANK!...i wish i knew what colors dad's was...the plans said blue and yellow~definitely could see that combo in the sky!!!!! Cool
  
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TK2
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Re: Aeronca 7C Champion kit #311
Reply #62 - Jan 22nd, 2023 at 12:42pm
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Couple tricks I learned,
sand slowly and with fine paper. Sanding makes heat on the surface of the wood. Heat will warp the stuff.
S L O W L Y.  Thin wood requires you to almost polish your way to the finish product. Thicker stuff not so much.

Don't for get to add in the thickness of your sand paper. For 1/64, you might want 1/32 shims or rails. Maybe a tad thicker.  Depends on the thickness of the paper.   I am thinking you could use many layers of packing tape for the rails and remove layers to get down to the thickness you need. Just a thought.

You wont need to glue your rails permanently.  The sand paper you glued to the glass with make a "grabby " surface to help hold the rails in place. Tape them on the ends if it helps.   

Slow and gentle wins this game.  Creep up on the final thickness.

You can use your glass sheet to make a dead flat sanding bock.
Glue you base paper to the glass and use that to make a flat spot on the bottom of a 2x4 or some scrap piece of scrap wood that is easy to hold. After you make your block flat, attach sand paper to the block and there you go. Be sure to leave enough block to ride those rails with out sanding them also. I did that once and my wood almost disappeared, lol 

You will get it I'm sure. I hope it works for you as well as it did for me. Side note, I have never measured 1/64 wood. I just hold it up to the light. Im sure you can see light thru 1/64, Not like a window, but you will see it for sure.  Will show up as streaks if you use A grain.  Balsa wood is not consistent at all.

  One more thing, try it on scrap first to get your final desired thickness. You might prefer A grain over C grain for this. Maybe heavy wood is better than soft wood. It's up to you.
  I do this alot on the table saw. Cut a scrap to check for size. Pine is cheap, walnut not so much. Test cut the pine first. Sacrifice/practice on the lower end common stuff so the good stuff will fit on the first try. 

  
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Kaintuck
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Re: Aeronca 7C Champion kit #311
Reply #61 - Jan 22nd, 2023 at 6:38am
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No balsa was at the swap meet.....

Tk2, I have sanded sheets in the past, but I get waves in them, and I hate sacrificing a 1/16" sheet... Cry no real answer I guess! I'll look at hobby lobby for 1/16"x3" maybe I can use your technique. I just had a thought, if I get 2 glass slats, and glue my sandpaper to one, JB weld 2 1/64" rods for spacers! And sand between them...should get a nice thin sheet! Cheesy
I have a friend here who has a glass place...I've gotten some of his throw-away pieces for free to make my 'beds'... Cool

Thank you tk2!!, I'm on a mission!
Marc
  
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TK2
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Re: Aeronca 7C Champion kit #311
Reply #60 - Jan 21st, 2023 at 9:59pm
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1/64th might be hard to find.
  Did you know you can make a sanding block and lay metal wires parallel to each other and sand down to any thickness you want?  The wires become rails for the sanding block to ride on and give you a steady, stable thickness. The fine paper on the table helps your workpiece not slide all over the place.
  
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Kaintuck
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Re: Aeronca 7C Champion kit #311
Reply #59 - Jan 17th, 2023 at 2:58pm
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Sky9pilot wrote on Jan 15th, 2023 at 7:55pm:
Looks good and the wire was a nice solution.  You might want to consider small pieces of scrap balsa at the bottom of the windscreen inlaid between the stringers for tissue anchors.

GLAD you mentioned it!!!!!!
Planning to attend a local swap meet saturday, i hope to find some nice 1/64" balsa sheet, all mine stash is gone. but that 1/64" is great for following curves doing nice tissue anchor points. Roll Eyes
i must be getting older~
  
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Sky9pilot
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Re: Aeronca 7C Champion kit #311
Reply #58 - Jan 15th, 2023 at 7:55pm
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Looks good and the wire was a nice solution.  You might want to consider small pieces of scrap balsa at the bottom of the windscreen inlaid between the stringers for tissue anchors.
  

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Kaintuck
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Re: Aeronca 7C Champion kit #311
Reply #57 - Jan 15th, 2023 at 6:25am
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Thank you Sky9pilot....but I'm no where near your skills....here's the wing on, and a nice fit. I had a slight warp in the plastic across the to of the windscreen...so I use a small dia wire glued, keeps it tight against the wing I think....


I believe I'm ready to start covering... Tongue
  
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Sky9pilot
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Re: Aeronca 7C Champion kit #311
Reply #56 - Jan 14th, 2023 at 9:17pm
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Great progress.  Looking very good! Smiley
  

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Kaintuck
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Re: Aeronca 7C Champion kit #311
Reply #55 - Jan 14th, 2023 at 4:28pm
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Well boys, got the windows in, and that big old wind screen!
The wing slides into that cut out top of the windscreen....so there will be no pressure on it when flying...
  
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Kaintuck
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Re: Aeronca 7C Champion kit #311
Reply #54 - Jan 12th, 2023 at 4:20pm
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Got the lil 'sticky things' anchored, I put small plastic tubes on the ribs...they fit snug. To remove the wings, undo the part on the fuselage, then it all drops straight down. All put together, it has wing support  Smiley
Let's see....what's next....
  
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Kaintuck
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Re: Aeronca 7C Champion kit #311
Reply #53 - Jan 9th, 2023 at 4:22pm
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Thanks Tk! Been working on the struts...magnet and pin thru tubing mounting..
  
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TK2
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Re: Aeronca 7C Champion kit #311
Reply #52 - Jan 7th, 2023 at 5:51pm
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You sure can carve. Looks really good. 
  
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Kaintuck
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Re: Aeronca 7C Champion kit #311
Reply #51 - Jan 7th, 2023 at 6:50am
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This plane has a kinda raised dash, blue foam carved to fit, looks pretty good I think, but the inside needs work....where the gauges go. I need to go to internet and see the panel....
  
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Kaintuck
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Re: Aeronca 7C Champion kit #311
Reply #50 - Jan 6th, 2023 at 9:11am
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Thanks tk...I kept the plastic one for rubber noseplug. This balsa one is lighter, allowing for my battery to be bigger, longer flight times I hope...
  
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TK2
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Re: Aeronca 7C Champion kit #311
Reply #49 - Jan 5th, 2023 at 8:49pm
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Super nice looking wood work.
Love the nose carving. That came out really nice!
  
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