Announcement

Collapse
No announcement yet.

1:3 Bohatyrew 'Motyl' of 1925

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • #16
    Looking good Mike!

    Steve K

    Comment


    • #17
      Dzien dobry! Thanks Steve! It's going to be a big dopey model but should be fun! Tail skid mounting done! The mount block epoxied inside the fuselage is spruce and the marine ply exterior guide block was installed early during the crutch build. A paper pattern was used to check the angle of the skid as it exits the fuselage. The skid is 1/8" piano wire and will get painted and installed after covering.

      Click image for larger version

Name:	IMG_3627.JPG
Views:	1
Size:	38.1 KB
ID:	33453Click image for larger version

Name:	IMG_3628.JPG
Views:	1
Size:	18.5 KB
ID:	33454

      Click image for larger version

Name:	IMG_3629.JPG
Views:	1
Size:	35.2 KB
ID:	33455

      Do jutra...

      Comment


      • #18
        To znowu ja! Uprights and part of the landing gear mount reinforcements in the form of lite ply and CF tow has been added. When the epoxy cures more ply will be added to continue around and to the nose. It's sure is hard to photograph these big birds to make sense of what is going with the build so just look at previous photos to compare.

        Click image for larger version  Name:	IMG_3630.JPG Views:	1 Size:	51.5 KB ID:	33459Click image for larger version  Name:	IMG_3631.JPG Views:	1 Size:	48.6 KB ID:	33460

        Dobranoc!

        Comment


        • #19
          Witamy! Almost finished getting uprights around the nose! To try and keep everything aligned formers are getting built into the fuselage in the front section.

          Click image for larger version

Name:	IMG_3632.JPG
Views:	1
Size:	34.7 KB
ID:	33525Click image for larger version

Name:	IMG_3633.JPG
Views:	1
Size:	48.8 KB
ID:	33526

          To wszystko!

          Comment


          • #20
            At some point you have to run out of ways to amaze us. Another cool project..Thank you mike.


            PS.
            Love Pineapple too
            Len Buffinton
            Team Horizon Hobby

            Comment


            • ARUP
              ARUP commented
              Editing a comment
              Thanks for your support, Len! Yeah... my house has a little bit of a pineapple and acorn theme in it!

          • #21
            The nose bows got sanded on the inside to fit some plywood. Sandpaper was wrapped around a cardboard tube for this process. The sheet of ply was slipped inside then marked to get cut. More CF tow was laid down with epoxy and the ply was put back in place and clamped until the epoxy cures. Making sure the CF tow gets saturated with epoxy sure is a messy business.

            Click image for larger version

Name:	IMG_3634.JPG
Views:	1
Size:	38.6 KB
ID:	33564Click image for larger version

Name:	IMG_3635.JPG
Views:	1
Size:	33.1 KB
ID:	33565

            Click image for larger version

Name:	IMG_3636.JPG
Views:	1
Size:	37.0 KB
ID:	33566Click image for larger version

Name:	IMG_3637.JPG
Views:	1
Size:	42.3 KB
ID:	33567

            Click image for larger version

Name:	IMG_3638.JPG
Views:	1
Size:	35.3 KB
ID:	33568Click image for larger version

Name:	IMG_3640.JPG
Views:	1
Size:	45.8 KB
ID:	33569

            I noticed the tail post isn't square so that will have to be 'fixed'. Do widzenia!

            Comment


            • #22
              To znowa ja! No pictures but the wing rod has getting a fiberglass glass tube curing around it as I type. Fiberglass and finishing resin... what a messy proposition! Yuck! The basic fuselage box is completed! Whoopee!!! Some gussets are still being added to keep the sticks from getting loose. Some of the sticks are drilled to accept toothpicks with glue. That'll really lock the sticks together! Now, the wing construction can begin. Once the spar location is known exactly then the wing tube can be put in the fuselage with appropriate bracing. Then the landing skids mounts can get fabricated and tied into the wing tube supports. Then the tail feathers... then.... lol. The wing looks to have a Go 190 foil so I'm going to smooth it over toward an HQ 3.5 using the TLAR method... just like I'm doing for everything else on this model!

              Click image for larger version

Name:	IMG_3644.JPG
Views:	1
Size:	38.8 KB
ID:	33608Click image for larger version

Name:	IMG_3645.JPG
Views:	1
Size:	49.2 KB
ID:	33609

              I want to finish this one pretty quick so I can start on my 'Secret Project' for the Horizon Hobby Aerotow!
              Dobranoc!

              Comment


              • #23
                Your craftsmanship and attention to detail is simply amazing but even more impressive is that you actually fly these works of art! I hope to see one of these masterpieces in person one day soon.

                Mike

                Comment


                • ARUP
                  ARUP commented
                  Editing a comment
                  Hi Mike! Thanks for commenting because I really appreciate it!!! Do you live on the west of the Great Divide? I'd like to 'go west' and fly sometime in the near future.

              • #24
                I’m diggin this thing, inspirational stuff. Definitely “goober status”...

                Comment


                • ARUP
                  ARUP commented
                  Editing a comment
                  'The Goober Stamp of Approval'... rock on! Thanks PG! I like 'Raisinettes' and 'Snow Caps' candy, too! lol

              • #25
                Czesc!
                Len... here's some pineapple stuff for ya! The wing tube was made from ~3 layers 4 oz. cloth all in one wrap. The 48" long CF tube joiner rod was coated with Kentucky Jelly... I mean... vaseline then enough waxed paper was rolled onto it to give ~ 2 layers. 1 oz. of finishing resin was applied to the glass cloth which was on waxed paper. The rod was placed on the edge of the glass and resin then rolled. This pushed excess resin along to wet the cloth that wasn't. Messy business... yuck! Waxed paper was then rolled onto this and it was taped tight with masking tape and allowed to cure overnight. It was a simple matter to heat the assembly with hot air gun which loosened the waxed paper so the rod could be pulled out. Then the waxed paper was worked out using a scrap balsa stick. The ~42" wing tube to rod fit is pretty good and I'd guess less than 5 thou. slop. Now the board has been cleared to draw the wing! I love this stuff!

                Click image for larger version

Name:	IMG_3642.JPG
Views:	1
Size:	26.8 KB
ID:	33634Click image for larger version

Name:	IMG_3643.JPG
Views:	1
Size:	22.9 KB
ID:	33635

                Click image for larger version

Name:	IMG_3646.JPG
Views:	1
Size:	37.4 KB
ID:	33636Click image for larger version

Name:	IMG_3647.JPG
Views:	1
Size:	24.9 KB
ID:	33637

                Click image for larger version

Name:	IMG_3648.JPG
Views:	1
Size:	33.6 KB
ID:	33638

                Kolejny dzien!

                Comment


                • #26
                  Witamy! The wing plans were drawn. An order for spruce cap strip material from Aircraft Spruce will serve as the spars. I need wider stock to fit the 20 mm wing tube. So... since I'll have to wait for the spars to arrive the stab and elevator plans were drawn. Some 1/4 scale Hansa Brandenberg KD 'Startstrutter' blue foam forms were re-purposed. One for the KD rudder fits the outer elevator curve and the KD fin form fits the inner elevator curve. The seven 1/16" laminations are cut double width so that after gluing they can be cut lengthwise to have mirror image parts. The stab LE form is custom cut and the five 3/32" laminations are slightly more than 3/8" wide. The extra width allows for sanding them fair. The balsa laminates were soaked in hot water then clamped to the forms to dry. They will be taken off the forms for gluing, later. Don't use ammonia for it destroys the lignin in the wood unless you don't care if the wood is weakened such as might be needed for non-structural details. The pictures show the forms with the wood clamped. The form are laid over their respective places on the plan.

                  Click image for larger version

Name:	IMG_3649.JPG
Views:	1
Size:	36.4 KB
ID:	33671Click image for larger version

Name:	IMG_3650.JPG
Views:	1
Size:	40.8 KB
ID:	33672

                  Click image for larger version

Name:	IMG_3651.JPG
Views:	1
Size:	38.9 KB
ID:	33673

                  Kolejny dzien!

                  Comment


                  • #27
                    Dzien zabawy!
                    The glue has dried so the 'double width' elevator parts were sawn in half lengthwise. You can see how wide one elevator laminate is compared to the LE laminate, which doesn't get cut.

                    Click image for larger version

Name:	IMG_3653.JPG
Views:	1
Size:	34.0 KB
ID:	33812Click image for larger version

Name:	IMG_3654.JPG
Views:	1
Size:	36.7 KB
ID:	33813

                    Click image for larger version

Name:	IMG_3655.JPG
Views:	1
Size:	47.5 KB
ID:	33814

                    The elevators are almost done! Hinging and the control horn follow!
                    Do widzenia!

                    Comment


                    • #28
                      Czekanie... waiting for the glue to dry! Reinforcements of 1/64" ply glued inside elevators at scarf joints. Measurements taken off fuselage mounting plates and transferred to stabilizer. Dowel rod 3/8" diameter will serve as hard points to mount the stab and 1/4" will serve for mounting the fin-stab-fuse cables. These will get drilled for bolts, later. When the glue has dried the structure will get sanded flat and fair. The TE of stab and LE of elevators are pinned together. Once structure sanded flat then it gets taken off board to sand the perimeter. The fin and rudder get built next!

                      Click image for larger version

Name:	IMG_3656.JPG
Views:	1
Size:	31.4 KB
ID:	33866Click image for larger version

Name:	IMG_3659.JPG
Views:	1
Size:	52.3 KB
ID:	33867

                      Click image for larger version

Name:	IMG_3657.JPG
Views:	1
Size:	34.1 KB
ID:	33868Click image for larger version

Name:	IMG_3658.JPG
Views:	1
Size:	31.9 KB
ID:	33869

                      Click image for larger version

Name:	IMG_3660.JPG
Views:	1
Size:	43.4 KB
ID:	33870

                      Do zobaczenia pozniej!

                      Comment


                      • Gene C
                        Gene C commented
                        Editing a comment
                        Looking good. Love the construction.

                      • gunny11
                        gunny11 commented
                        Editing a comment
                        Yes, +1 on the construction!

                      • ARUP
                        ARUP commented
                        Editing a comment
                        Thanks, fellas! These things get a little 'piece-y' at times.

                    • #29
                      Mike,

                      You are a glutton for punishment. This should be a fun sailplane, or glider ?
                      Hope to see it fly this summer.
                      Keep up the good work.

                      Porter

                      Comment


                      • ARUP
                        ARUP commented
                        Editing a comment
                        Waddaya say, Porter! I may end up with a 'keeper' like the goofy Vampyr! Be sure to make Horizon! What new bird do you have in the works?

                    • #30
                      The Vampyr is repaired after its last 'outing' and resting in its coffin storage box and the Eaglet fuselage is repaired after its hard landing at Clover Creek last year. It just needs right wing strut attachments repaired but that can't happen until I get some new Texaco stickers for the wing so that the 'approach' to repair can be figured out. Back to the Motyl! The stabilizer and elevators were sanded flat then the elevators were unpinned from the stab then pinned together and sanded for symmetry. They need their edges rounded.

                      Click image for larger version

Name:	IMG_3661.JPG
Views:	1
Size:	41.1 KB
ID:	34061Click image for larger version

Name:	IMG_3662.JPG
Views:	1
Size:	34.7 KB
ID:	34062

                      Dobranoc!

                      Comment

                      Working...
                      X