User Manual

❏❏14. Place the hatch covers with the servos in
the wing. Be certain the hatch covers are positioned correctly as shown in the photos back at step 5. Drill six 1/16" [1.6mm] evenly spaced holes through the hatch covers into the wing. Enlarge the holes in the hatch covers only with a 3/32" [2.4mm] drill.
❏❏15. Connect a 24" [610mm] servo extension
wire to the aileron servo. Cut one of the pieces of 3" [75mm] heat shrink tubing supplied with this kit in half. Slip the tubing over the connection between the servo and the extension wire, then carefully shrink the tubing by heating with a heat gun.
❏❏16. Use the string in the wing to pull the aileron
wire through the wing. Mount the aileron hatch with six #2 x 3/8" [9.5mm] screws.
❏❏17. Guide the flap servo wire through the wing
alongside the aileron servo wire. Mount the flap hatch with six more #2 x 3/8" [9.5mm] screws.
❏ 18. Mount the aileron and flap servos and hatches
in the right wing the same way.
Hook up the servos Do the left aileron first. ❏❏1. Referring to the photo above, cut the aileron
pushrod to the correct length, then solder it to a large, non-threaded metal clevis using the techniques described in the following Hot Tip.
This is what a properly soldered clevis looks like— shiny solder with good flow, no blobs, flux removed. 2. Apply a few drops of soldering flux to the end
of the pushrod, then use a soldering iron or a torch to heat it. “Tin” the heated area with silver solder (GPMR8070) by applying the solder to the end. The heat of the pushrod should melt the solder—not the flame of the torch or soldering iron—thus allowing the solder to flow. The end of the wire should be coated with solder all the way around.
3. Place the clevis on the end of 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 naturally without disturbing. Avoid excess blobs, but make certain the joint is thoroughly soldered. The solder should be shiny, not rough. If necessary, reheat the joint and allow to cool.
4. Immediately after the solder has solidified, but
while it is still hot, use a cloth to quickly wipe off the flux before it hardens. Important: After the joint cools, coat with oil to prevent rust. Note: Do not use the acid flux that comes with silver solder for electrical soldering.
1. Use denatured alcohol or other solvent to
thoroughly clean the pushrod. Roughen the end of the pushrod with coarse sandpaper where it is to be soldered.
HOW TO SOLDER
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