Dynaflite Original - Manual (Page 2)

Supplemental Instructions for Bird of Time
After producing an initial run of Bird of Time kits Mark's Models has
come to a conclusion: Dave Thornburg's concise instructions may be a
tiny bit too brief. We have therefore taken the liberty of expanding
upon those areas where further clarification might even help experts.
WING
1. Join the plan-halves with Scotch tape or rubber cement and tape to
the building board - cover left panel drawing with wax paper. It Is
easier to build the inboard and outboard panels at one time but it is
not important to do so. Just don't glue them together.
2. Trim a piece of 1/16" X 3 5/8" balsa to 24" and pin this leading edge
sheeting over the inboard panel plan. Using the rest of the sheet, trim
the inner wing sheeting to shape, pin to board and cyanoacrylate.
3. The l/l6" X 3" X 36" outboard sheeting must be trimmed to shape and
the triangular scrap pieced to the Inboard end to bring it to the required
width. Use Cyanoacrylate to speed the process. Trim the inboard end to
an angle such that the scrap piece is to the rear If you wish. Pin the
lower leading edge sheeting In place over the plan with the aft edge flush
with the aft edge of the spar line.
4. Glue the 1/8" X 3/8" X 24" hardwood Inboard spar to the lower sheeting,
flush with the rear edge. Similarly, glue the 1/8" X 3/8" X 36" balsa
outboard spar to the outboard lower sheeting. Use Titebond or white glue.
5. Lightly sand the back of the die-cut sheets for a more clean removal.
Remove parts and lightly remove any fuzz with sandpaper. Be sure not to
change the contour of the parts in this process. Be sure the spar notches
are clean. Note the difference between the A and AA ribs and mark them.
(The aft end of AA ribs is narrower)
6. To facilitate gluing the ribs to the lower sheeting, slide the narrow
edge of a piece of trailing edge stock under the front edge of the sheeting.
This will form the sheeting Into the "Philllp's entry" airfoil required
and the ribs will fit snugly. Put the inboard (root) AA rib In place noting
that it is tipped as shown In section RR (3.5°). Make sure the rib Is snug
against the lower sheeting and fasten with Cyanocrylate. Now fasten the
rear of the rib to the Inboard sheeting. Now, counting from the Inboard
end, fasten the 2nd, 3rd, 4th & 5th "A ribs to the foreward lower sheeting*
Pin the rear of these ribs securely to the building board.
7. Saw the main-spar polyhedral braces from the 1/8" plywood and sand
carefully to dimension. (These pieces are only lightly die-cut as full
die-cut results in ragged edge.) Check the fit of the 3/8" X 9/l6" X 2 7/8"
vertical-grain shear webs - make sure they don't protrude into spar notch.
Epoxy polyhedral brace and shear webs In place. Make sure webs are aligned
with the spars in the two bays with plywood shear webs.
1.