BEAVER DH C2 no 2 30 IN RUBBER DUMAS KIT 306 Nov 25 2025 to PRESENT

[Lastwoodsman]

BEAVER DH C2   30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER   DUMAS KIT 306   

Reply #150           

Freya March 13 2026

     Hi John!   Thanks for the 'like'.    We are ardently working right along ...         My buddy did order my new Beaver kit on Wed March 11 2026,  through Ebay, so we will see how long it takes - he said a couple of days ....    So I hope to eventually have two wings for this plane -  the old broken wing fixed up,  and a brand new wing from the new kit.

Rebuilding the broken old Wing CS with New Spars

Pic #1     1900     Bloodroot checks the ribs.

Pic #2     1905     The two outer ribs are now glued in.   That is four out of six ribs.     It is weighted down with a thick balsa plank,  topped with clay,  and lead pellet-packed,  cylinders.

Pic #3     1906     Another view.   Out in front are the five small balsa spacers,  along side the original Center Section LE,  that the spacers,  and the ribs,  all glue up against.

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2   30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER   DUMAS KIT 306   

Reply #151           

Freya March 13 2026

Rebuilding the broken old Wing CS with New Spars

The final two ribs are added,  and test fit of the two new  1/16" sq spars.

Pic #1     1910     The final two outer ribs of the CS are pinned up for an easy slide-in for gluing.

Pic #2     1911     It is all glued up now,  and a final blocking plate is added to the front of the ribs.

Pic #3     1920     The two smaller  1/16"  sq elongated spars are added for a test fit.

Pic #4     1922     You can see the upward bend of the elongated spar arms.    This bend follows the dihedral angle.

The right wing panel is intact,  except that I removed the Silkspan covering from the first bay at the wing root.   I will slide in the right wing and see if the three spar extensions fit as side by side doublers ....

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2   30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER   DUMAS KIT 306   

Reply #151           

Sat March 14 2026

Rebuilding the broken old Wing CS with New Spars

Pic #1     1923     The foremost upper 1/16" sq new spar,  gets test fitted and marked for the spar extension lengths cut offs.

Pic #2     1931     Both  1/16" sq top spars are check fitted,  and the double slots that hold two side by side doublers of 1/16" sq,  are checked also -  one had to be "widened" out a little with a  1/16" sq sanding notcher.

Pic #3     1934     Here the two top spars are cut to length,  to fit just inside the far rib of bays  #1.

Pic #4     1933     And here is a closeup.

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2   30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER   DUMAS KIT 306   

Reply #153           

Mon March 16 2026

Rebuilding the broken old Wing CS with New Spars

Pic #1     1936     This shows the fit of the  1/8"  x  1/4" Main Spar "doublers".    The main spar extensions have not been cut to the shorter length,  as they were long enough to go through the hollowed out first bay outer rib -  pretty tight squeeze though -  I hope it does not throw off the wing alignment ....

Pic #2     1937     I raised the wing panel LE leading edges by taping on two thin acute angles of thin balsa to the plan,   to line up better with the CS center section leading edge.    There is also a  1/16" plank of balsa,  raising the main spars of the wing panels only (to the top of that double notch),  so I can fit that full  1/16"   balsa sheet for covering the bottom of each first bay.   That's the plan.

     I think I am going to leave the Main Spar as it is,  that is,  extending one and one half bays from the wing root,  instead of extending only one full bay.

     The top  1/16" sq spars are now glued in.  LE of the CS is still not glued.

Pic #3     1945     Three new spars.

Pic #4     1942     Closeup pic.

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2  30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER  DUMAS KIT 306 

Reply #154         

Mon March 16 2026

Rebuilding the broken old Wing with New Spars

Pic #1    1948    Setting up for the final assembly.

Pic #2    1951    The old Leading Edge is now glued to the front of the ribs.

Pic #3    1954    The  top spars are cut to length,  to fit inside the rib.  You can see,  on the left CS outer rib,  that only the main spar of the wing,  is raised by a 1/16" plank,  to seat up into the higher notch hole,  of the double notch,  for the main spars.

Pic #4    1956    The wing panels have now been slid into the Center Section.   It looks pretty straight.

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2   30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER   DUMAS KIT 306   

Reply #155           

Tues March 17 2026

Rebuilding the broken old Wing with New Spars

Pic #1     1964     Long view of the clamped up wing.

Pic #2     1960     Closeup of the glued up spar doublers.

Pic #3     1966     View from the right wing.

Pic #4     1967     View from the left wing.

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2   30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER   DUMAS KIT 306   

Reply #156           

Tues March 16 2026

Rebuilding the broken old Wing with New Spars

Pic #1     1968     All glued up and blocked up.   The small balsa strips  1/16" sq have been glued to the rear tops of the six Center Section ribs,  and the holes in the backplate A4 .

Pic # 2    1971     The result.

Pic #3     1974     Test fit of the wing on the fuse saddle.
     
Pic #4     1972     Closeup.

Lastwoodsman
Richard

[OZPAF]

The repair has gone well Richard. Being able to dissolve the glue and disassemble the joints makes a clean repair possible.

You may have this flying before the new kit arrives.

John

[Lastwoodsman]

BEAVER DH C2  30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER  DUMAS KIT 306 

Reply #157         

Thur March 19 2026         post 1 of 2

Rebuilding the broken old Wing with New Spars

    Overall,  things did not glue up as I expected,  upon further closer inspection,  so a lot more thinking needs to be done.    But,  my new kit came in the mail    ,  and the pressure is off,  as my new kit wing can then be made,  if the old rebuilt wing fails.

Pic #1    1977    Close-up of the break at the Leading Edge.

Pic #2    1978    Two  0.010"  file folder cardboard pieces of part B5 (forward stop of wing at CS) are glued together,  for the wing fit to fuse.

Pic #3    1980    Here are three balsa plates that I intend to glue on:  two  1/16" balsa plates for the bottom of the first bays at the wing root,  and one  1/32" balsa plate for the top of the wing CS.


    Well,  this song has been playing on 'loop',  non-stop,  for a few modelling days now.    If you like womens' choir voices in the neoclassical mix,  this is it ...

CLANN - Arise (Instrumental)
https://www.youtube.com/watch?v=gtPn5NLjdKo

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2  30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER  DUMAS KIT 306 

Reply #158        post 2 of 2

Rebuilding the broken old Wing with New Spars

Thur March 19 2026

Pic #1    1982    The left wing panel first rib didn't glue up right.  The  1/16" sq strip,  that makes the rib bottom,  slipped off its mating surface  --  the Center Section Main Spar is to blame.

Pic #2    1981    Here is a close up pic.

Pic #3    1985    The left wing panel was not seated all of the way down.

Pic #4    1988    Here we are adding an extra 10  thou file folder cardboard rectangle,  to the 2 ply cardboard B5 doubler.

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2   30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER   DUMAS KIT 306   

Reply #160          post  1  of  3

Sat March 21 2026

Rebuilding the broken old Wing with New Spars

     I just made a lot of progress.   I made a few more little structural changes,   which involved removing one more piece of tissue  -  the right wing second bay upper tissue.   The right wing rear double spar 1/16" sq.,   got squeezed and mangled because the clamp was too tight,  but the wood fibers are still there,  and it all feels super solid,  though with all of that dried white glue in there.

Pic #1     1993     Here we are chiseling down the Main Spar doubler,  that was sticking out on the bottom surface left wing,  back down to even with the surface.

Pic #2     1995     Here we have the two new  1/16" balsa plates to be glued into a  1/16" recessed rectangle cutout,  in the bottom of each first bay from the root.

Pic #3     1998     Closeup.   You can also see the five small balsa blocks glued directly behind the leading edge and the balsa ribs.

Pic #4     2002     To the left of the wing in the middle is the  1/32"  balsa sheet,  for gluing onto the top of the Center Section.   To the right of the wing are two infill balsa blocks  1/8" x 43mm x 7mm.   These 2 infill planks will go on the top of the wing,  from the leading edge to the first  1/16" sq doubler of the first bay,  and from the CS rib,  to Rib 3 of the wing panel.

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2   30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER   DUMAS KIT 306   

Reply #161         post 2 of 3

Sat March 21 2026

Rebuilding the broken old Wing with New Spars

Pic #1     2005      Here is  what I have ready.   Ignore that crooked piece -  none of those corners were 90 degrees like I thought.

Pic #2     2006     Closeup.   Here you can see the bottom 1/16" strip at the bottom of the first rib on the left wing panel,  that forced out of shape by the main spar doubler (spar doubler is now chiseled down).   That bottom rib strip will now be glued back in place.

Pic #3     2009     Two infill planks,  right behind the LE,  are glued in place,  sitting  "proud"  for sanding later.

Pic #4     2012     At the bottom,  and on the orange colored spars,  sit four small balsa rectangles,  in the exact position on the plan copy,   where they will be glued on the real frame,  1/16" sq spar doublers.

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2   30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER   DUMAS KIT 306   

Reply #162          post  3  of  3

Sat March 21 2026

Rebuilding the broken old Wing with New Spars

Pic #1     2015     The four small rectangle blocks have been glued in place.

Pic #2     2016     The two base plates for the first bay bottom of each wing,  are getting fitted to exact size.   These will act as the TE  trailing edge,  and will receive another balsa reinforcement strip also after wards.

Pic #3     2021     The  1/16" recessed rectangle "holes" have been cleaned up,  and the main spars are now almost perfectly finished at  1/16" deep.     The two plates are final fit, and ready for gluing.

Pic #4     2024     Mandrake flat files the spars to  1/16" depth,  to accept the  1/16"  balsa plate.

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2   30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER   DUMAS KIT 306   

Reply #163    Sun March 22 2026    post 1 of 3

Rebuilding the broken old Wing with New Spars

     Things are moving quickly.   I almost have the wing rebuild finished.   I am starting to look at the weather ....

Pic #1     2028     Bloodroot prepares an exact cut sheet of silkspan covering for the bottom of bay two on the left wing.

Pic #2     2029    The silkspan cover on bay two is glued on.   The two base plates are now also glued in place after a lot of sanding and fitting.

Pic #3     Wind Forecast   -  I should have this plane ready to fly in a couple of days ...

Lastwoodsman
Richard

[Lastwoodsman]

BEAVER DH C2   30 INCH RUBBER POWERED  FREE FLIGHT PARK FLYER   DUMAS KIT 306   

Reply #164    Sun March 22 2026    post 2 of 3

Rebuilding the broken old Wing with New Spars

Pic #1     2035     View of bottom wing.

Pic #2     2034     Closeup of bottom wing.

Pic #3     2039     View of top wing.

Pic #4     2038     Closeup of top wing.

Lastwoodsman
Richard