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 #210         Mon April 13 2026       post 3 of 5

Making The Big Shims cont.

Pic #1     2329     Oh no!   All those  3/32"  quarter shims are too small!

Pic #2     2333     Closeup of too small ...

Pic #3     2342      We made four quarter moon,  larger shims this time.

Lastwoodsman
Richard
cont

[Lastwoodsman]

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

Reply #211         Mon April 13 2026       post 4 of 5

Making The Big Shims cont.

Pic #1     2348     The high edge has to be thicker balsa,  and the low edge has to be thinner balsa  =   down thrust and side thrust in the resulted compound angle, sanded plane.

Pic #2     2356     The two shims are now glued onto the big shim,  after a wee bit of pre-sanding to their required angles.

Pic #3     2362     Plus I added another thin support shim at the bottom (held in place by three small planks).

Pic #4     2367       And here is the top view of the resulting large shim(and small shims),  sitting around the nose block tenon.

Lastwoodsman
Richard
cont

[Lastwoodsman]

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

Reply #212         Mon April 13 2026      post 5 of 5

Making The Big Shims cont.

Pic #1     2368     And here is the other side view that goes with the previous Pic #4   2367.

Pic #2     2370     Here is the nose cowl block,  and shim fit,  on the fuse.    I'm just guessing that this is good enough sidethrust.

Pic #3     2371     Top view of shim with nose cowl on fuse.

Pic #4     2376     Downthrust

Ready to  fly!

Next up  -  posting the Flight Report  #6  of  Sat Apr 11 2026

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #213        Mon April 13 2026

Start of  FLIGHT REPORT  #6    of  Sat April 11 2026   post 1 of 3

The big revamped shim is in the Beaver.

Pic #1    2377    Right thrust

Pic #2    2378    Side view of down thrust.

    We started walking out through Jackson Park to the Cricket Field ...

At 9:06 AM the weather was a cold  41 deg F (feels like 50)  Humidity  79%    The lite Silkspan was wrinkled up with the humidity,  sunny,  winds 4 mph from ENE  gusting to 6 mph.

Pic #3    2382    Wind on the flag at the entrance to Jackson Park,  Windsor,  Ontario,  Canada.

Pic #4    2383    Wind on the flag at the Spitfire and Hurricane replicas on pedestals.

Lastwoodsman
Richard
cont

[Lastwoodsman]

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

Reply #214        Mon April 13 2026      post 2 of 3

FLIGHT REPORT  #6  of  Sat April 11 2026  (cont)

    We got to the Cricket Field at  9:30  AM  No players ...

Pic #1    2384    My set up in the Cricket Field.

Pic #2    2385    Flight #1  first landing  soft nose plant and popped back up on its legs.

Pic #3    2386    Noseblock came loose.

Pic #4    2387    Looking straight West.

Four Flights only today,  all stretch wound on a stooge.

1    150 winds,  4 sec,  slight left turn,    perfect landing

2    210 winds  (I can go 270 winds safely)  Big left turn,  three seconds,  cartwheel,    the winds are increasing and veering in the open Cricket Field,    too windy and gusty.

3    210 winds,  tried a new launch angle to the South downwind and quartering away from me,    three  3  seconds,    flew straight at a perfect glide launch angle downwards,  and flew into the deep grass with it still having turns left on the rubber.

4    240  winds,    the winds were now coming directly from the East  (  I did not forget my banner streamer of orange flagging tape six feet long ).     

    I launched down wind and slightly left.    It went into a left turn,  (I will put more clay on the right wingtip),  into a perfect stand up balancing act of a landing.

    I was winding  for the fifth flight and the wind had shifted and now came from the East.    I knew it was too windy after three flights,  but now I was glad I stayed - because it showed me what I needed to fix.    The (loose not glued in yet)  big shim suddenly broke apart into four pieces,  in my hands,  like a house of cards.    Maybe it was from all that spinning and dancing on a stretched out wound rubber motor,  and bouncing around on a still winding up,  rubber motor,  that caused it's demise.   

Lastwoodsman
Richard
cont

[Lastwoodsman]

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

Reply #215        Mon April 14 2026        post 3 of 3

FLIGHT REPORT  #6  of  Sat April 11 2026  (cont)

Pic #1    2388    Flight #2  soft nose plant.

Pic #2    2389    My stooge set up showing the four broken pieces of the Big Shim.

Pic #3    2390    Close up of broken shim pieces.

    Well,  so much for low winds all day.  I was actually ready to call it quits after flight #3 ....

    So, ....  I was lucky the Cricket players were not on the pitch yet -- they surely will be,  on this nice sunny day later on.    Now I will make a better shim,  and get ready for the next flight.

    We then packed up and went for a nice walk and took some final early  'leaf flush out'  pics,  of spring coming to life in Jackson Park,  to finish off the post.

    Got home at  11:15 AM  temp 46 deg F (62),  60% humidity,  winds  4 mph from ENE  gust 7 mph.

    We did again head back into the park a few hours later,  loaded for bear and intending to fly,  at 3 PM 52 deg F (61)  35%  winds  7 mph  ENE  gust 9,    but it was too windy,  once we got there,  for any more flights.

Park Spring Tour Pics  in the next four posts

Pics of the Spitfire and Hurricane

Pic #4    2391

Lastwoodsman
Richard

End of Flight Report #6  of April 11 2026

[Jmk89]

Hi Richard

Good progress.

What about using low-tack double sided tape to hold the shims in place and to protect them a bit from landing damage?

Cheers

[Lastwoodsman]

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

Reply #217        Wed April 15 2026    post 1 of 3

     Hi Jeremy.   Thanks for the reply.   I just have to get these last Park Tour pics replies,  posted,  and then I will post several detailed build replies,  with pics and text already completed,  on how I have already finished the shim repairs and fix.

    I went with this,  for starters :  "Closeup of the big shim break.    It will all be glued in place on the nose block tenon."    But lots more was needed.

    The final overnight drying result,  right now,   is a tight fitting cowl with no wobbling,  and .... ready to fly .... !

Park Tour Pics

Pic #1     2392     Wind on the flag at the Spit and Hurri replicas.

Pic #2      2393     Walk around pics of the sunny side of the replica Spitfire and Hurricane.

Pic #3     2394   Note the wind on the flag.    Too strong ie more than  8 mph .

Pic #4     2395       Spit and Hurri.

Lastwoodsman
Richard
cont

[Lastwoodsman]

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

Reply #218        Wed April 15 2026    post 2 of 3

Park Tour Pics  cont

Pic #1    2396    Second last Spit and Hurri pic.

Pic #2    2397    Last of the Spit and Hurri pics.

Pic #3    2398    Eagle carving.

Pic #4    2399    Closer up pic of eagle carving.

Lastwoodsman
Richard
cont

[Lastwoodsman]

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

Reply #219        Wed April 15 2026    post 3 of 3

Park Tour Pics

Pic #1     2404     Outside the Flower Garden

Pic #2     2405     Flag on the way out.

Pic #3     2406     Flag on the way out.

Pic #4     2407     Flag on the way out.

Lastwoodsman
Richard
cont

[Lastwoodsman]

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

Reply #220        Wed April 15 2026

Pic #1      2408     Flag on the way out.

Back in my apartment

Shim Repair and Fix

Pic #2     2410     Back on the flight line table.

Pic #3     2411     Closeup of the big shim break.    It will all be glued in place on the nose block tenon.

Pic #4     2412     Things are taken apart.    The motor sits on the cowl.

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #221        Wed April 15 2026

Shim Repair and Fix

Pic #1     2413     The Beaver is all disassembled.   The six feet of orange flagging tape is for bringing to the launch spot along with the Beaver.   I will never forget it again.

Shim Repair

Pic #2     2414      Bloodroot  pins up some balsa blocks,  to hold the Cowl in place,  for gluing the broken shims directly onto their place on the noseblock.

Pic #3     2415     Closeup.

Pic #4     2420     Left glues onto the left,  and right glues onto the right.

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #222        Wed April 15 2026

Shim Repair and Fix

Pic #1    2423    Labeling is everything.

Pic #2    2425    High edge.  Low edge.  All glued up.

Loose Cowl Fit

Pic #3    2430    We will try gluing an extra plank on the top tenon.

Pic #4    2432    Bloodroot and Mandrake simultaneously tighten the clamps,  which were nicely supported at rest,  by the balsa blocks.    Little things ...

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #223        Wed April 15 2026

Loose Nose Block

    The test fit showed that the tenon was loose up and down,  and loose left to right.    Two balsa plates were eventually needed,  to get close ...

Pic #1    2434    Another view of Bloodroot and Mandrake clamping in that top plate on the tenon.

Pic #2    2437    More good camera angle work.

Pic #3    2440    There is now also a glued in extra plank on the left side of the nose block,  after the last test fit needed it.

Pic #4    2443    Close up pic.

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #224        Wed April 15 2026

Loose Nose Block Repair

Pic #1     2446     Top view of right thrust.

Pic #2     2451     Side view of down thrust -  maybe I need more down thrust -  I will bring a very thin quarter shim for this next time out.

Pic #3     2457     The top and side planks are still not exactly tight.    They get a final  cutout,  of  "thin plank",      0.010"  file folder cardboard,   glued on.

Pic #4     2467     Glued on now.    It is now a tight fit!

Ready to fly!

Lastwoodsman
Richard