Horizontal Stabilizers
Using a Matchmaker or receiver and
transmitter, center both horizontal stab servos.
Install the servo arms such that they are
matched as closely as possible for both servos.
Option: for added security, use metal servo
arms for this application. If you use a tapped
metal servo arm, you will need to replace the
clevis supplied with the kit with an appropriate
ball link. You can secure with a small amount
of CA for extra security. See photo.
Install servo into its mount, securing with four
screws. Do not use rubber mounts and brass
eyelets.
To keep the heat away from the servo during
engine operation, make a small shield that can
be bolted to the formers. In the prototype,
BVM heat insulation covered by aluminum tape
was used. Leave some space for air
circulation. See photo on following page.
Insert stab spars into control arms, using large
Delrin washer for spacing from fuselage. Hold
pressure against fuselage and tighten allen
bolts securely. Check for smooth operation and
minimal play.
FB Su-27
Page 7
