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 #45

Thur Jan 15 2026

Final rendition of the Beaver Logos

Pic #1     0952     The two good outlines now have their lines thickened up now.

Pic #2     0955     And here is the finished result of the right facing Beaver Logo,   incorporating all of the little corrections which were made.

Pic #3     0962     Closeup of the finished Beaver Logo,  in white light.

Pic #4     0965     And a closeup of the finished Beaver Logo in yellow light.

     The left facing Beaver is next.   It should go smoothly,  now that the coloring is all figured out.

Lastwoodsman
Richard

[g_kandylakis]

artwork 

[Lastwoodsman]

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

Reply #47

Thur Jan 15 2026

     I got the two Beaver Logos colored up.

Pic #1     0970     This is the left side Beaver Logo in the middle,  partially colored in.    Yellow lighting.

Pic #2     0974     Same as above,  but using white light.

Pic #3     0976     And the left side Beaver Logo is now done.   But I did add little corrections,  after staring at it .... with the other logos beside it ....

Pic #4     0979     Closeup of the final left side Beaver Logo.

     It worked out OK.   I made photocopies,  which came out not as bright as the original -  I may just use the "dull"  photocopies,  as they are a much better match for the dull color scheme,  of the Beaver overall.   

     I just have to cut them out using the templates for the fin/rudder.

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #48

Fri Jan 16 2026

Cutting Out the Beaver Logos and Finalizing Their Positions

     There was a lot involved with the Logo shapes and positioning.    I cut out two photocopies of the enlarged oversized Logos,    pulled out the Fin/Rudder Templates and two small maple leaf Logos,    and test fit it all together,    while trying to get even spacing.

     Useful markers include the horizontal white sand beach in the distance,  which was marked onto the templates.    Also,  the vertical direction of the maple leafs were key also,   with the outer white circle and the tip of the maple leaf being marked on the templates.   And we have the front/rear location just to the rear of the hill in the distance.

     They look really good,  and I am tempted to glue them on right now,  but I am forcing myself to wait  'til later .... 

Pic #1     0986     yellow light   Here you can see the dull photocopies compared to the originals.   

Pic #2     0988     white light   And these two cutouts of the dull photocopy will be selected and fitted to shape.

Pic #3     0990     Here we have the Beaver Logo nicely cut out and angled to fit into it's spot.

Pic #4     0993     And here is the final template notes for the locations.     These two Beaver Logos are now ready to glue on later ....

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #49

Sat Jan 17 2026

Winding Stooge and Bench Motor Runs

    I thought I needed a new winding stooge for the Beaver,  since I raised the rear dowel higher and closer to the front of the plane.   

    The stooge  'ears'  were too low.  Luckily,  the base floor of the stooge was a double plate of  1/2" ply hardwood flooring.  I was able to unscrew and remove that top plate,  which made the stooge fit the fuse.

Pic #1    1001    The new Beaver fuse is in the old Winding Stooge.    The hole in the winding stooge is in the upper right  -  you can see the  1/16"  hole with white light shining through,  that takes the  3/64"  length of music wire going through the ears and the  1/8" rear peg aluminum tube.

Pic #2    1003    To make the Stooge  "fit"  the fuse,  the top wooden plate,  with the black foam,  was removed from the stooge,  and a felt insole was nailed on top of the remaining floor bottom plate of the stooge.   

Pic #3    1005    The peg is now raised about one quarter inch or so,  and the fuse fits now.

Pic #4    1017    Here,  the new aluminum 1/8" diam  tube is installed.  It all fits nicely together.

Stooge ear wall internal separation    =  85 mm
1/8" alum tube length                  =  80mm
Outside fuse diameter  at rear peg      =  60 mm

Next up,  some rubber motor test runs ....

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #50

Sat Jan 17 2026

Winding Stooge

     Here are some old Winding Stooge pics from the good ol' days on the Cricket Field, with my good flying pal  "Trapper",  who came along on every flight session.

Pic #1     4901     Winding up the  22"  Sig Cabinaire.   I got  62  sec with this plane.

Pic #2     4911     The  'old'  winding stooge.

Pic #3     4912     Different view.

Pic #4     4913     Bottom side.   Heavy duty.

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #51

Sat Jan 17 2026

Winding Stooge

And four more pics.

Pic #1     4915     This one has the wire in it,  between the ears for the rear peg tube of the fuse.

Pic #2     4917     You can see the wire in this one too.

Pic #3     Flying List    just a basic list.

Pic #4     Sept 11 2017     The Cricket Field in full thick grass.

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #52

Sun Jan 18 2026

Rubber Motor Testing -  Stretch winding 'til they break

Pic #1    1020    Previously,  four rubber motors were tied up and kite string added.      Two  seven inch  strands of a 3/16" ribber motor are in the Beaver.

Pic #2    1023    Whrrrrrrrrrr ... .  seven seconds.

Pic #3    1028    New rear peg aluminum tube,  seven inches back.   You can see the built in down thrust here too.

Pic #4    1032    Time to make up some rubber motors -  and stretch wind these test motors to snake-coil failure using  10:1  and/or  15:1  winders from Volare Products - also the rubber.

Lastwoodsman
Richard   

[Lastwoodsman]

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

Reply #53

Mon Jan 19 2026

Rubber Motors

     Now that the Beaver fuse fits in the Winding Stooge properly,  I turned my attention to the test runs of the rubber motors.

    I stretched the motors to break them in,  but I am not lubing the motors because that is too much oil splatter slop inside of the fuselage.    Besides,   we're not going for records,   just some short flights and small park bashing around,  hoping to get a full circle when eventually trimmed out.

Pic #1     1035     Rubber stretcher,  home made.

Pic #2     1037     There are directions on the stretcher.

Pic #3     1039     Rubber  Turns  chart.

Pic #4     1041     Two Winders from Volare Products.

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #54

Mon Jan 19 2026

Finger Winding  the Motor Run
Two strands (one 'loop' in English)  3/16"  Wide  7" long
- just two of rows of knots by finger -  it really needs stretch winding ...

80 finger winds                =   3 sec spinning prop
100 finger winds              =   5 sec spinning prop

Brake Turns
Stretch Winding the Rubber motor to Breaking Failure using a  10:1  crank handle Winder

Two strands (one  'loop'  in Britland English)  3/16"  Wide  7" long

Results

1   560 winds      56   hand crank circles
2   600 winds      60   hand crank circles
3   630  winds     63   hand crank circles

     The "Book Value",  from my Don Ross Book,  for the number of "brake" turns,  is  84  turns per inch  TPI of the motor  -  the motor is 7 inches long ,   so   84 x 7 =  588   total winds,  that will break the rubber,  in theory.    The book value is plus or minus 10%,  by the way,  so there is that ....

     For calculating the number of  'safe turns',  I will go with my  "lowest"  break turns of 560,   and just wind in a  safe 80%  (not 90%), of those 560 turns  =   448 turns or 450 turns,  same thing.

Pic #1     1042     Two strands  3/16" wide rubber motor,  seven inches long.

Pic #2     1046     Two strand and four strand motors.

Pic #3     1048     Motors getting stretched.

Pic #4     1052     Torque turn chart.

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #55

Mon Jan 19 2026

Rubber Motors

     So,   I can now safely wind up the Beaver,  in the Stooge,  up to 45 cranks (450 winds) on the  10:1  Winder handle,   without fear of the rubber motor exploding inside the fuselage.

     I also tried to stretch wind a motor made of four strands   3/16"  Wide  7" long.   I was only able to crank in  200 Winder winds all my might -  I stopped before breaking the handle  -  it was impossible to turn the handle any more !!   This is way too powerful of a motor.    So,  I just took it apart.

     I should try, as my next step,   testing to failure,   a four strand  1/8"  seven inch long,  rubber motor    Book value  58 x 7 =   406 turns to breaking

Pic #1     1055     Three motors to use for trimming plus some calculations.

Pic #2     1057     Bob Ross'   "Rubber Turns and Torque" chart.

Pic #3     1015      Crumbled up bread crumbs for my speedy sparrows.

Pic #4     1051     We had a  5"   snow dump five days ago,  and we are in the  'deep freeze'  now.

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #56

Thur Jan 22 2026

Hub Caps for the Wheels

     I made up a bunch of hubcaps for the  3/64"  0.047"  Landing Gear Wire.     They were really hard to punch out those  0.0085"  thick clear plastic plates with that punch.   

     I had to use the yellow pliers to close the jaws of that paper punch,  because it was too hard by hand.    Two types of scissors were needed to cut off the extra flash deformities on the plate edges.    It is impossible to find these little clear plates when they go flying off ...

     They are press fit onto the wire,  and are really snug at first.    I fear they may fly off on landings,  and I may  be forced to use some Cyano Acrylate Super glue on them.

Pic #1     1061     Time to clean the building board.

Pic #2     1071     The order of assembly.

Pic #3     1074     Four good new hubcaps are done and pinned down.

Pic #4     1078     Nine are done now -  plus a few bad ones.

Lastwoodsman
Richard

[Lastwoodsman]

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

Reply #57

Thur Jan 22 2026

Hub Caps for the Wheels

    We got about six junk hubcaps and 25 good ones.    I had to use the needlenose pliers to dig out some of those bad plates,  from inside the punch.  Now I can fully assemble the model.

    There is a covex and a concave  side to each hubcap.  The inside side of the hubcap,  on the axle,  is the convex side.

Pic #1    1084    Mandrake eyeballs the round head pin point,  presses down on the hubcap,  and shoves the pin through.

Pic #2    1090    Bloodroot chases the round head pin hole,  larger,  with a  1/32"  0.031"  drill bit.

Pic #3    1087      Bloodroot presses down on the hubcap so it won't spin,  while Mandrake spins in the #59 drill bit for final enlargement.

Pic #4    1093    25 hubcaps are done,  6 are scrap.  I still have a small piece of clear plastic to cut more hubcaps  out of.

Next up :    Start assembling the model,  and make a table stooge for the fuse, and do some real timed motor runs.

Lastwoodsman
Richard

[gravitywell]

Tremendous amount of really good info.  Thanks so much.  I think a lot of it will translate to my next Beaver (I have already built one Dumas Beaver but its static).

[Lastwoodsman]

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

Reply #58

Fri Jan 23 2026

     Hi Glen Gravitywell and thanks for the nice reply.     Good luck with your next  "flying"  Beaver.    Please feel free to post a pic of your current,  'static'  Beaver,  right here if you want.    I currently have pics of a Beaver from two current HPA members,   Joe H,  and Pete Fardell -  see Pic #1.   

     I get some good ideas and tips from pics of previous models  -  especially Pete's built-up  half-motor (?) for his Radial Beaver ....

Pic #1     1128    Joe H Beaver   blue and white
                   Pete Fardell Beaver  orange red and white

Lastwoodsman
Richard