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

Started by Lastwoodsman, Jan 01, 2026, 06:47 PM

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Lastwoodsman

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

Fri Feb 27 2026

Reply #135

Flight Report #1    Thur Feb 26 2026   cont

Pic #1     1765     Best pic.

Pic #2     1766     Second best  pic.   Good beaver logo.

Pic #3     1767     This is the best grass to try test glides on.

Pic #4     1769     Dropping in there for a perfect  3-point drop-in landing,  sort of like a helicopter ....

Lastwoodsman
Richard
cont

Lastwoodsman

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

Fri Feb 27 2026   

Reply #136

Flight Report #1         Thur Feb 26 2026   cont

Pic #1     1768     Yellow willow tree in the background.   Good pic of the beaver logo.

Pic #2     1770     A big bush wheel came off on the right side.    It sticks out with that blue color.

Pic #3     1771     Here the Beaver is limping out of Jackson Park,  with a detached right Alaskan Bush Wheel.   We will epoxy all of the hubcaps now.

     We got home  12:56 PM   temp  30 deg F  winds  7 mph WSW  240 degrees  gusting to 12 mph   humidity  41%.

Pic #4     WEATHER FORECAST  FRI FEB 27 2026   TEMPERATURES

Lastwoodsman
Richard
cont

Lastwoodsman

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

Fri Feb 27 2026          9:00 AM

Reply #137

Flight Report #1        Thur Feb 26 2026  cont

A few repairs

    We worked on the Winding Stooge by adding another brownish yellow felt pad on the fuse floor and on the inside of the upright ears.    It is slightly snug.

    We also used  5 min Epoxy to glue the clear plastic disc hubcaps,  to the landing gear wire.

Pic #1    1772    The outdoor winding stooge got an extra brown colored felt pad,  for a nice cozy fit.    Notice the right wheel is off.

Pic #2    1774    We just glued  5 min Epoxy on the outside of the flat clear plastic small  hubcaps.  You can see the small glob of glue right at the axle.

Pic #3    1777    All of the three hubcaps are now glued.

Pic #4      WEATHER WIND FORECAST  FRI FEB 27 2026      Forecast for today ....  I hope it does not get too windy ....

End of Flight Report #1

Ready to fly.

Lastwoodsman
Richard

Lastwoodsman

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

Fri March 6 2026   

Reply #138                      post 1  of  5

Flight Report #2  of  Fri Feb 27 2026   

     Sorry for the delay.   I needed to suffer in self exile.    :-\   :( 

     Fri morning  at 10:25 AM  the weather was sunny,  temp 41 deg F (feels like 43 deg F)  humidity  67%   winds from the southwest at  11  mph  gusting to  18  mph.

     I knew I should have gone back home,  but I tried a little test glide with about 25 soft winds,  any way, among the small deciduous leafless trees.    I was shocked as it went left hard instantly, and did what I thought was a  "soft"  cartwheel,   where it was seemingly standing straight up,  on its wing tippy toe,  for a long sort of moment,  balanced by the wind.

     Now,  I had never even given the beaver a soft toss over the bed,  which may have shown that left turn tendency.

     Well,  it was not much of a flight report,  as I crashed it on the fist toss (6 th test glide).    So,  I have been suffering in self exile til now.

     I have been doing a lot of thinking on how to fix it in the meantime,  though.

     I don't even know if I am launching it level or not,  but like I said,  it did not even look like a  "hard"  cartwheel -  maybe I should have reinforced the wing root where it broke.    I had wiggled the wing and fuse and stab etc.,  and everything was solid,  before test gliding ....

     There are not a lot of flying pics in Flight Report #2.    It started out as a nice walk in the park ....

Pic #1     1779     Sitting on the stone wall in the Flower Garden of Jackson Park.

Pic #2     1780     Another view at the stone wall.

Pic #3     1781     The Beaver Logo.

Pic #4     1782     By the Spitfire and Hurricane.

cont.

Lastwoodsman
Richard

Lastwoodsman

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

Fri March 6 2026         

Reply #139            post  2 of 5

Flight Report #2  of  Fri Feb 27 2026 

Pic #1     1783     The Cricket Field is in the lower left of the pic.

Then I tried the first glide toss with about 25 soft winds ....

Pic #2     1784     Broken left wing at the shoulder.

Pic #3     1785     The Spitfire and Hurricane say goodbye to the near fatally injured Beaver.   The cowl was knocked right out of place,  but still under tension,  after the crash.

1786   to  1817       1815 to 1817  apt pics

Pic #4     1786     Back at the apartment after the walk of shame.   The left wing shoulder is only held on by the ripped silkspan  covering.

cont.

Lastwoodsman
Richard

Lastwoodsman

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

Fri March 6 2026   

Reply #140            post  3 of 5

Flight Report #2  of  Fri Feb 27 2026 

Pic #1     1790     We started dissection surgery,  and this is how it looked.

Pic #2     1793     Another view different light.

Pic #3     1796     After brushing on a lot of lukewarm water ( I should have used freshly boiled water to dissolve the white glue quicker ),  I finally got the four mating surfaces of the wing center section/fuse saddle,   unglued.

Pic #4     1801     I was trying to think of how to fix it,  starting with a full  1/16"  balsa  sheet for the bottom of the bay.

cont.

Lastwoodsman
Richard

Lastwoodsman

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

Fri March 6 2026    pics in  73

Reply #141                    post  4  of  5

Flight Report #2  of  Fri Feb 27 2026 

Pic #1     1802     The cutout fits,  but there are a lot more unanswered questions.

Pic #2     1804     I was thinking of extending the main center spar of the right and left wing panels into the center section more.

Pic #3     1808     I should replace those two gussets at the center section attachment to the wing panel(s),  with something much stronger.

Pic #4     1811     Amazingly,  and the fuse and wing saddle were undamaged,  and I cleaned all that up.   Now I am thinking that I just need to build a new wing.   

Lastwoodsman
Richard

Lastwoodsman

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

Fri March 6 2026    pics in  73

Reply #142                     post  5  of  5

Flight Report #2  of  Fri Feb 27 2026 

     I let a lot of water drip all over the striped strips,  whose colored markers were not water  proof.    Good thing I made a lot of extra striped strips.   I glued these strips over all of the wing and fuse water damaged strips.   It works well,  so I will do that with the new wing and make some new roundels too.

Pic #1     1814     Strip is glued over the water damaged stripes.   At least the wreckage looks better now.   Yellow light  pic.

          I have started thinking about building a completely new wing ....

     I don't like sanding,  so I decided against scratch building,  and just try to buy another kit,  and build that wonderful laser cut wing without filling up my apartment with balsa sanding dust.   Plus,  I will have spare parts for the fuse and tail assy,  etc,  in case I need them.

     I did not want to order a kit all the way from the southwestern USA,  with the high exchange rate,  plus shipping,  so I looked for someone selling a Beaver Kit on the Interdweeb,  I mean,  Internut.

Pic #2     BEAVER EBAY CANADA  74 DOLLARS
                $74

Pic #3     AMAZON  BEAVER KIT DUMAS KIT NUMBER 306
               $97.91

Pic #4     EBAY  BEAVER KIT DUMAS KIT NUMBER 306
                $49

     My buddy who has Paypal will try and order one for me.   He says  EBay  usually comes the very next day.

     So,  sorry for the delay,  there is still hope to fly the Beaver this Spring ....

The end.   Now waiting for the new kit to arrive ....

Lastwoodsman
Richard

Lastwoodsman

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

Reply #143 

Mon March 9 2026            post  1 of 3

Re-Assembling the Broken Wing

     In the meantime while I wait for the new kit,  with the new laser cut parts to get here,  I will try to re-assemble this wing and CS using a couple of reinforcement experiments,  .   But there are a lot of missing and broken  1/16" sq  upper wing spars .....

     One area of improvement is with the Center Section CS Main Spar.   I want to extend  this spar on both sides,  a full bay further into the wing panel,  by adding angled dihedral spar  "legs" (spar doubler),  on both sides coming off of the CS main spar.   I drew one up to try ....

Pic #1     1824     Here is the broken wing against the Big Board.

Pic #2     1828     I traced a pencil copy on the back of a photocopy,  to get both sides of the front view.

Pic #3     1831     I will use the bottom diagram for drafting the correct angles,  and shaping the CS spar and legs.

Lastwoodsman
Richard

Lastwoodsman

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

Reply #144 

Mon March 9 2026          post 2 of 3

Re-Assembling the Broken Wing

Pic #1     1834     The right wing panel and CS are intact.   I am going to dissolve the whole CS now.

Pic #2     1836     I had to stick the whole CS into a big deep pot of boiling water.    The white glue dissolved fast.     The water logged parts are drying out.

Pic #3     1840     Sunshine on the Big Board.   We set a temp record today way hotter than usual  -  almost  70 deg F.

Lastwoodsman
Richard

Lastwoodsman

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

Reply #145 

Mon March 9 2026                  post 3 of 3

Re-Assembling the Broken Wing

Pic #1     1841     The first bay of tissue is removed from the right wing now also.   

Pic #2     1844     Top diagram.   I should be able to extend the CS  1/16" sq upper spars also,  as a doubler along side the,  first bay wing panel,  upper spars.

Pic #3     1855     The Center Section Main Spar is yellow.   The angled dihedral Spar extensions are orange.     These extensions act as  "doublers" for maximum strength.

     Plus,  I might add a  1/16"  balsa plate at the bottom of both wing  root bays,   since I cannot extend the Leading Edge CS,  the same way as the Main Spar.

Lastwoodsman
Richard

Lastwoodsman

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

Reply #146 

Tues March 10 2026                 

Re-Assembling the Broken Wing for practice,  before building the new wing in the new kit -  no word yet ...

New Center Section Spars With Extensions

    There is a big main spar underneath,  and two smaller spars on top.  These three spars will get remade out of hard balsa,  and these spars will have spar extensions added on going through the first bay of the wing panels.

Pic #1    1857    Here we are making a new main spar  1/4" x 1/8"  out of harder balsa than the one already done.  I have also cut out two balsa sheets of  1/16"  for the bottom of both first bays of the wing,  for extra strength.

Pic #2    1861    The top finished new main spar is soft and light,  but I want to make a new hard balsa spar for the new CS.  The new outline is glue-stuck onto some hard balsa.

Pic #3    1865    I got some  1/16"  hard balsa sheet to make two upper  1/16" sq balsa spars with extensions.  The bottom outline,  glued onto a new sheet of hard balsa,  shows two  1/16"  sq spars to cut out.   The orange in the pic,  are the new extensions,  from the yellow original spar .  The orange extensions will act as doublers,  side-glued to the wing spars.

    Now the hard part.  I will try to cut these new spars out by hand. 

Lastwoodsman
Richard

Lastwoodsman

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

Reply #147             post 1 of 2

Wed March 11 2026                 

Re-Assembling the Broken Wing,  for practice,  to see what works.

More Progress

Pic #1     1867    Cutting out the new main spar from hard balsa.

Pic #2     1869     Exacto-knifing through  1/8"  hard balsa,  required a lot of hard pressure to hold it all down in place.

Pic #3     1871     After much arduous and exacting work,  using the steel rule and the exacto blade,  we now have two  1/16" sq  upper wing spars for the CS.   We also left a little extra length on the extension,  for sanding/fitting later.

Lastwoodsman
Richard

Lastwoodsman

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

Reply #148          post 2 of 2

Wed March 11 2026                 

Re-Assembling the Broken Wing for practice to see what works.

More progress

Pic #1    1873    These three new spars turned out Ok -  that just need a little sanding.

Pic #2    1875    Since I used Studio glue stick,  the printer paper outline does not peel off of the spars well.  So I brushed on some boiling water,  and my sharpened butter knife easily scraped it all off.  They are all drying on a paper towel.

Pic #3    1881    The middle rectangle of  1/32"  balsa,  60 x 91 mm,  is the top cover for the wing CS.  The other two rectangles of  1/16"  balsa,  84 x 44 mm (cut extra long),  are for covering the underside bottom,  of bays #1,  of the wing panels.    These will effectively get rid of those two small gussets at the LE wing root.  The first try at the new main spar is at the top labelled "weak light balsa" on the green masking tape.

    It is time now,  to glue up the old CS with the new spars,  and see how the "preserved"  right wing panel fits.

Lastwoodsman
Richard

Lastwoodsman

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

Reply #149           

Thur March 12 2026       

Rebuilding the Wing CS with New Spars

     I have been taking my time,  because I want to get the  CS as exact as I can.   And a good setup that takes a long time,  is an integral part of the hobby,  and deserves its own pic.

      The big main center spar has to be correctly centered and seated,  on its flat center section.   After a lot of pins and shuffling things around,  the two inner ribs (of the six ribs),  now just slide tight,  into their respective spots.

     The two ribs just got glued in.

     Bloodroot checks the  "seating"  of the rib  -  a gentle press,  and nothing moves or goes anywhere,  so we are goo to go.

     I will let this dry completely before doing anything more  -  7 hours to dry with "white glue".

Pic #1     1883     Here are two plan sheet photocopies of the wing center section area.   The new hard main spar gets positioned and secured first.   Everything is built around this.

Pic #2     1886     Same as above,  but also includes:  One CS top cover sheet of balsa  60 x 91 mm and  1/32" thick,  and two  1/16" thick  84 x 44 mm balsa sheets,  for the underside of each first root bay,  of the wing panels,  cut extra long for fitting of course ... 

Pic #3     1894     Starting to position the parts and get them pinned up properly.   The rib with the broken off tail,  is now glued back together at the left.   Also at the left,  is the old (shirt) CS Main Spar,  which is now replaced with the new long  Main spar currently in the set up.

The two inner ribs have just been glued in place.

Pic #4     1897     We braced things up more.   Here the  two inner ribs slid right in between the pins,  and got glued in place,  after a couple of practice placement tries,  and after sanding a very slight bit off of the rib ends.

Lastwoodsman
Richard