Du-Bro 101 – How To Install HD Adjustable Control Horns on RC Airplanes

Du-Bro 101 – How To Install HD Adjustable Control Horns on RC Airplanes

Here’s a basic overview of how to install Heavy-Duty Adjustable Control Horns.

  1. Insert bolt into beveled washer with the bolt head against the flat side of the washer
  2. Place a bump washer onto the bolt next with the bump facing the beveled side of the washer previously installed
  3. Insert the bolt into your prepared control surface hole.
  4. Place the other bump washer onto the bolt in the control surface with the flat side facing the control surface.
  5. Screw down the threaded aluminum barrel and snug it tight to slightly crush in the balsa.
  6. Thread on the lock nut and use two pliers (any kind will do) to snug the lock nut against the threaded aluminum barrel
  7. Thread on the remaining plastic arm and determine where to cut the bolt for the height needed for your control surface.
  8. Remove the plastic arm, use a cutoff wheel on an electric rotary tool, and replace the arm.
  9. Using the supplied Safety Lock Kwik-Link, connect the arm to a threaded push rod