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Sea BB 26, 34, & 42 Build Guide
By dz1sfb on
www.rcgroups.com
See the build log at
***Sea BB 42 Plans Pictures and
Videos***

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Summary of Contents for RC Groups Sea BB 26

  • Page 1 Sea BB 26, 34, & 42 Build Guide By dz1sfb on www.rcgroups.com See the build log at ***Sea BB 42 Plans Pictures and Videos***...
  • Page 2 1. Former Sub-Assembly Servo Tray A. Assemble F1, Servo Tray, and F2 with adhesive. B. Proceed immediately to step 2.
  • Page 3 2. Fuselage Former Installation A. Pre-bend fuselage sides at F2 position. B. Insert F1/Servo Tray/F2 assembly with adhesive. C. Dry fit F3 and do not glue until LH fuselage side is installed in step 4-B. RH Fuselage Side...
  • Page 4 3. Monoblock Sub-Assembly A. Monoblock is shown with rounded front and beveled bottom. This should be done after the fuselage is assembled. B. Assemble a left and right sub assembly with filler blocks. Allow the adhesive to dry so that the outside can be sanded flush to mate to the fuselage sides.
  • Page 5 4. Monoblock and LH Fuselage Side Installation A. Apply glue to monoblock sub-assembly and add to RH fuselage side assembly. B. Glue and install the LH fuselage side, and glue F3 to both sides.
  • Page 6 5. Install Lower Fuselage Panel A. Groove the inside centerline of bottom panel to allow easy folding. Then add glue to centerline joint to strengthen. Now add fuselage bottom panel. B. Bevel all mating surfaces to insure a water tight strong glue joint.
  • Page 7 6. Fuselage Top Panel and Wing Rubber Band Dowels A. Add fuselage C. Install wing top panel. rubber band dowels. B. Shape nose and hull of the This completes the monoblock. basic fuselage. You may omit gluing the wing dowels at this time until after any color trimming is complete.
  • Page 8 7. Horizontal Stabilizer/Elevator Assembly packing tape A. Add brace to elevator. I used a pine stick that was scrap from ripping wood on the table saw. Just under 1/8” sq. X 6” long B. Use your favorite method to hinge elevator to the horizontal stabilizer.
  • Page 9 8. Vertical Stabilizer/Rudder Assembly Hinge rudder to vertical stabilizer and attach optional water rudder and compression washer with a 2-56 machine screw and nut.
  • Page 10 9. Stabilizer to Fuselage Installation A. Please note that the latest parts have tabbed components to aid alignment. B. After adding horizontal and vertical stabilizer assemblies, check for square and true to centerline of fuselage.
  • Page 11 10. Wing Tip Float Sub-Assembly (2 required) Glue 3/16” dia. x 4-1/4” long dowel into center strut lamination. Add outer strut laminations. Add outer float laminations. Streamline leading and trailing vertical edges of the strut. Sand airfoil mating surface square, smooth, and free of glue. Set aside assemblies for last step to add to the wing.
  • Page 12 11. Motor Pylon Sub-Assembly A. Add dowels and cross brace to pylon center lamination. Note temporary tab. This is cut off after dowel glue is dry. Cheek Blocks 3/16” x 3-15/16” dowel B. Add the firewall cheek blocks. Shown in finished contour. Contour when motor pylon is complete (after step 12).
  • Page 13 12. Motor Pylon Assembly D. Curve and bevel pylon outer panels to fit. Then glue into place. E. 3 degrees up thrust is already built into the pylon design. Sand the motor mount face to provide 3 degrees right thrust, and attach the 1/16” plywood motor mount.
  • Page 14: Wing Panel Assembly

    13. Wing Panel Assembly A. Roll airfoil into each panel. B. Bevel wing root for dihedral. C. Apply glue to center joint and use blue painters tape to hold until dry. D. Dihedral under each tip is 1-7/8” for 42” span 1-5/8”...
  • Page 15 14. Wing Panel Assembly E. Steam dowels to match angles in the wing assembly. F. Using a small rat tail file, File edges to receive leading and trailing edge dowels. G. Glue and tape dowels in place while adhesive sets.
  • Page 16 15. Motor Pylon Installation A. Approximate holes in wing assembly for dowel rods in motor pylon assembly. B. Glue motor pylon in place. C. Use a clamp to hold them together. The wing tends to flatten out. Clamping will force it to the airfoil contour.
  • Page 17 16. Wing Tip Float Installation A. Add wing tip float assemblies to wing/motor pylon assembly the corresponding dimensions from centerlines. B. Make clamp jigs from scrap wood to get good solid joint. 14-1/4” for the 42” 11-3/8” for the 34” 8-7/8”...
  • Page 18: Motor Installation

    17. Motor Installation A. Attach motor to firewall B. Add hole in motor pylon outer panel and wing for motor wire routing. Motor wires may need extending. C. Not shown are the three laminated ribs at centerline of wing. These prevent the motor pylon from fracturing the wing panels mid chord.
  • Page 19 18. Servo, Pushrod, and Control Horn Installation A. Cut holes for servos and servo wire routing. B. Make up pushrods. I used 1/8” dowel rod, 1/32” music wire, and heat shrink tubing. C. Control horns are cut off pieces of zip tie.
  • Page 20 19. RX, and ESC Installation A. RX is hot glued to rear of F1. B. ESC wire routes through hole in F1. C. ESC is hot glued to the front of F1. D. Visible is the Deans Ultra connector used for the battery disconnect.
  • Page 21 20. Finished Model A. Now that you have finished constructing and installing your equipment, it is time to apply your favorite trim scheme. B. I always recommend using bright contrasting colors. The blue foam blends into a clear sky and makes orientation difficult.

This manual is also suitable for:

Sea bb 34Sea bb 42