Mount The Tailgear - GREAT PLANES Ryan STA Instruction Manual

Correct
11. Connect the clevis on the end of both pushrods to the
outer hole of a large control horn. Bend the pushrods as
necessary—but as little as possible—to position the control
horns on the elevator as shown in the sketch. Drill 3/32" holes
through the elevators, then mount the horns with 2-56 x 3/4"
SHCS and the nylon plate that came with the control horn.
12. Cut the front end of the pushrods to the correct
length, then read the following Expert Tip and solder a clevis
to the end of both pushrods. Connect the pushrods to the
elevator servos. If you prefer to solder the clevises to the
pushrods out of the model, you will have to slightly
straighten the bends you made before reinserting the
pushrods through the guide tubes.
How to solder.
A. Use denatured alcohol or other solvent to remove
residual oil from the pushrod.
B. Use coarse sandpaper to thoroughly roughen the end
of the pushrod where it is to be soldered.
C. Apply a few drops of soldering flux to the end of the
pushrod, then use a soldering iron or a torch to heat the end
of the pushrod. Coat the end of the pushrod with silver solder
(GPMR8070) by touching the solder to the pushrod. The
heat of the pushrod should melt the solder—not the flame of
the torch or soldering iron—thus allowing the solder to flow.
Note: Do not use silver solder for electrical soldering.
Incorrect
D. Join the clevis to the pushrod. Add another drop of flux,
then heat and add solder. The same as before, the heat of
the parts being soldered should melt the solder thus
allowing it to flow. Allow the joint to cool without disturbing.
Avoid excess blobs, but make certain the joint is thoroughly
soldered. The solder should be shiny, not rough. If
necessary, heat the joint again and allow to cool slowly
without disturbing.
E. After the joint has solidified but while it is still hot, carefully
use a cloth to wipe away soldering flux. Important: After the
joint cools, coat with oil to protect it from rusting.

Mount the Tailgear

Refer to this photo while mounting the tail gear.
1. Drill a 1/8" hole through the center of the bottom of the
fuse for the tail gear wire 5-7/8" from the aft end. Optional:
Use a 5/32" brass tube sharpened at one end to drill the
hole. Cut 1" from the end of the brass tube and glue it into
the hole. This will provide a bearing for the tail gear wire.
2. Insert the tail gear wire into the hole (or brass tube).
Keeping the tail gear wire centered, place two nylon hump-
straps on the wire where shown in the photo. Drill 1/16"
holes for the screws that will hold the straps into position.
Add a few drops of thin CA to the holes and allow to harden.
Mount the straps to the fuse with four #2 x 1/2" screws.
3. Drill a 3/16" hole (or use a 3/16" brass tube sharpened
at the end) through the bottom of the fuse in alignment with
the arm on the right side of the tail gear. Roughen one end
of the 3/16" x 36" pushrod guide tube. Guide the tube
through the fuse, so the roughened end is in the hole you
cut. Glue the tube into position. Trim the end of the tube so
it is even with the bottom of the fuse.
4. Cut the front of the guide tube about 1-1/2" short of the
rudder servo arm. Save the piece you just cut off for the
throttle. Make the tail gear pushrod from the 2-56 x 36"
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