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Very Hot Topic (More than 25 Replies) BROKEN WING - Sig "CABINAIRE" 22" wingspan (Read 7484 times)
LASTWOODSMAN
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #64 - Aug 5th, 2017 at 6:17pm
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Here are a few pics of the repaired 22" SIG "Cabinaire" - after I broke its left wing off ...
Thanks for everyone's help!   Smiley

LASTWOODSMAN & "Trapper"
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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LASTWOODSMAN
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #63 - Aug 5th, 2017 at 6:05pm
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Thanks for the kind words and inspiration and encouragement Tom!

5682     Gluing the rudder/fin back onto the stab with 5 min
            epoxy, in only two spots.
5684     A straight on view from the rear.  The
           "stab/rudder/fin"  is glued only in three spots on the
           underside of the stab only, to the fuse, one of
           which is to a 1/16" CUBE Incidence block, at the
           top of the very back of the fuse.
5687     Top view from the rear.
5688     View from the front of the plane.
5689     Another view from the front - you can see a slight
           offset for a right hand turn on the fin/rudder.
5690     Top view of fuse rear - you can see the open, long, 
           triangular hole at the top of the fuse at the rear,
           where the fin enters, allowing the one piece
           Stab/Rudder/Fin empennage to be glued slightly left
           or right, as needed for your flight.
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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Sky9pilot
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #62 - Aug 4th, 2017 at 1:31pm
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Looks great!  Nice job! 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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LASTWOODSMAN
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #61 - Aug 4th, 2017 at 12:39pm
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5669   DIHEDRAL CHECK AFTER STRUT ATTACHMENT

     After drying, I checked the wing alignment on my fuse jig holder and Wing Dihedral Templates.  Only 1 mm difference in the wingtip heights to the building board !!  Cheesy   Grin  Pretty darned close - 207 mm to 208 mm !! Smiley

5672     CLOSE UP OF REINFORCEMENT PINS
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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LASTWOODSMAN
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #60 - Aug 4th, 2017 at 12:33pm
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5660     CLOSEUP OF LEFT WING STRUT

     The left wing strut seemed to line up exactly where the old attach points were.  I blocked the left wing up in a sor of holding jig, and tried to CA glue the strut in place.  I nudged it after it was dry and it all fell apart!!   Undecided   The CA did not work ... 

5663     ANOTHER VIEW OF LEFT WING STRUT

     Then I globbed on some 5 min Epoxy glue, and then masking taped the strut into position, and let it dry.  Then I drilled the holes for the copper wire pins, and CA glued those pins into the left wing strut, and left it to dry.
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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LASTWOODSMAN
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #59 - Aug 4th, 2017 at 12:24pm
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5648     RIGHT WING COPPER ANCHOR PINS

     Now that the repaired LEFT WING is tissue covered, shrunk, and then glued to the fuse, I decided to also reinforce the strut attach points of the good RIGHT WING, by putting in small copper wire pin locator reinforcement peg mounts.
     I drilled small 0.0250" diameter holes with a #72 drill bit that was tightened into the chuck of a pin vise, drilled into and through the good right wing strut attach points and into the flat balsa thereof (I broke my only  #74   0.0225"  diameter bit).
     Then I cut out small lengths of 0.0195" diameter copper wire, and bent little circle grips on one end of the wire, to have something to hold on to, while pushing in these copper pins.  I CA'd the hole and the copper wire tip, and stuck in the wire and let it dry before snipping of the "handle" end, later on, flush to the strut.

5659     GLUING LEFT STRUT TO LEFT WING AND FUSE

     Then I had to glue on the "repaired left wing's"  strut that had survived the crash intact.
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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Sky9pilot
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #58 - Aug 1st, 2017 at 11:41pm
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If your mounting points in the wing and fuselage are backed with balsa a short piece of small copper wire can be glued into the struts and a pin can pierce the locating point to receive the small copper wire using the glue of your choice. I usually use Cyano (Super Glue) just a drop in the hole and then slide the struts into place.  Or a just a drop after the struts with the wire locators are in place. The thin cyano wicks between the joint and the wire securing it tightly in place. It usually dries pretty quickly and securely. When held in place for a few seconds.
Tom

  

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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LASTWOODSMAN
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #57 - Aug 1st, 2017 at 8:49pm
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Sky9 - my broken left wing "V" strut did survive the crash, and it does seem to fit right into the old attach points - but the attach points were flat balsa plank and not nice little pockets ... Neither was there a little Mortise and Tenon pocket for the single bottom attach point of the V strut to the fuse - just bare flat balsa - I think I will just glue it up with 5 min epoxy and see what happens. I sawed off the rudder and then the stab to do all of this work - the Rudder/Fin attaches to the Stab at two points, and the Stab attaches to the fuse at three points.   
     Actually, I do have a slight warp on the left wing that raises the outer rear wing up a bit - from shrinking the tissue AFTER installing the wing.  I can pin down the wing at the root and butted up against the fuse pretty securely, and then I can pin the outer wing down even, after I spray mist it again - we'll see what happens ...
      So, I spray misted it, and there were stress wrinkles when I pinned the soggy-tissue warped wing flat to the board.  The wrinkles magically went away when the tissue shrunk.    Smiley     And the wing lifted off of the waxed paper of the board with out sticking ... And LO AND BEHOLD, the left wing was straight and true  Cheesy 

6524 Wing pinned to the board with tissue already shrunk

6525 Plane is removed from the board and placed in jig - warp on left wing is now gone!!

Now to figure out the "undamaged"  "Y" strut attachment, to the now "flat" left wing  Wink

LWM
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #56 - Aug 1st, 2017 at 4:22pm
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Wing looks really good.  Were your wing struts destroyed in the crash? 

You should be able to take measurements off the right wing struts and make matching struts for the left side.

How was the right struts attached?  You might use the same method.
Tom
  

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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LASTWOODSMAN
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #55 - Aug 1st, 2017 at 3:30pm
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LAST OF THE PICS - now I have to figure out   ??    Undecided  how to attach the "V" strut - I think that I have space in the jig to do it while keeping the dihedral at the same time ... - single bottom attachment to the fuse first ?  while using masking tape to hold the strut top two attach points to the wing?  drill a tiny hole ? (before or after gluing ?), to help hold the struts down using toothpics ?  Any and all suggestions here at this point are also very welcome, and thanks guys for all of your previous tips    Smiley    - feel free to post comments and/or pics into my builds at any time about anything ...   Smiley
     By the way, I am really happy with the way the left wing finally turned out !!   Roll Eyes
LWM
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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LASTWOODSMAN
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #54 - Aug 1st, 2017 at 3:16pm
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More views
TISSUE IS NOW SHRUNK DOWN
-Am I ever glad I made a good jig to hold this Cabinaire in the first place !!
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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LASTWOODSMAN
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REAL PLANES HAD ROUND
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #53 - Aug 1st, 2017 at 2:53pm
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MORE ANGLES
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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LASTWOODSMAN
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #52 - Aug 1st, 2017 at 2:49pm
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Thank you to everone with their kind help  Smiley   Cheesy   Grin 

STRUT SEEMS TO FIT
DIHEDRAL LOOKS OK
TISSUE IS ON
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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LASTWOODSMAN
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #51 - Aug 1st, 2017 at 2:44pm
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MORE PICS - it looks pretty close to original
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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LASTWOODSMAN
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REAL PLANES HAD ROUND
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Re: BROKEN WING - Sig "CABINAIRE" 22" wingspan
Reply #50 - Aug 1st, 2017 at 1:14pm
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     The plane has now actually dried up nicely, and the wing panel sits on the fuse window frame perfectly, and has the correct dihedral and MAGICALLY, the "V" strut seems to fit right into the old attachment spots on the fuse and wing.   Smiley   Cheesy   Grin    Time will till... like on its first cartwheeled landing ...
  

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OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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