CONSTRUCTION
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1. Cut out the fin parts from BFS-20 sheet stock, lightly
sand the face surfaces, and set aside.

2. Cut the utility tunnels and the internal stiffeners from
heavy (110 lb) cardstock. Fold the pieces against a steel
straightedge. Glue with white or yellow carpenter's glue. The
stiffener is glued inside the tunnel about 1/4" ahead of the
wing cutout.

3. Mark the body tube the same as you would for four fins (90
degrees apart). With one mark representing TDC (top dead center),
drop down on either side of the tube 90 degrees for the wings, and
TDC for the launch lug. The fourth mark is unused. Draw lines on
these marks to a distance of 4" from the rear of the tube. Mark
the wings at distances of 1/4" and 1 7/16" from the TIP edges. Do
this on both wings, both sides. Draw lines parallel to the root
edges at each mark across each wing.

4. Glue the payload tube to the transition. Do not glue the
nose cone. Thread the screw eye into the small diameter base of
the transition. Carefully unscrew the eye, and force glue into the
hole, then reinsert the screw eye.

5. Apply a layer of glue 1.25" inside the rear of the main body
tube. Insert the CR-45 and push forward with a spent engine
casing until 1/4" of the casing remains outside the body. STOP!
Remove the casing immediately.

6. Attach the wings to the fuselage using the double-glue method
found in Stine's Handbook.

7. Slide the utility tunnels over the wings, as shown in the plans,
and attach them to the body tube.

8. Attach the large v-fins to the innermost lines on the wings, and
attach the smaller v-fins to the outermost lines, using the double-glue method. Align each fin with small 90-degree jigs made
of balsa, and clamp in place until dry.

7. Sand one end of each hardwood dowel to a point, as shown in the
diagram, and attach the dowels to the tips using the double-glue
method.

8. Attach the launch lug to the standoff using the double-glue
method and let dry. Attach the standoff-lug to the body tube at
a distance of 1" from the rear of the tube on the line drawn in
step 3, using the same method.

8. Attach the shock chord to the inside-front of the main tube
using the folded-paper method. Attach the other end of the chord
to a swivel, and attach the swivel to the screw eye. Assemble a
1" x 10" streamer, if desired, and attach the shroud line to
another swivel, then attach the swivel to the screw eye.

9. Prime, sand, and paint the model as desired. Allow to dry
completely.

10. GO FLY! 


Copyright © 2003 by Craig McGraw.
All Rights Reserved.