
25
Hangar 9 P-51 Mustang 60 ARF Assembly Manual
Step 16
Use a hobby knife with a #11 blade to cut a 1/4-inch (6mm)
piece of tubing from the 2-inch (52mm) safety tubing
included with the kit. Slide the tubing on a clevis, and then
thread the clevis 10 turns on the flap pushrod.
Step 17
Slide the flap pushrod into the wing, bent end first. Connect
the clevis to the outer hole of the flap control horn. Slide the
safety tubing on the clevis so it won’t accidentally open in
flight.
Step 18
At this time you will want mark the leads for the aileron,
retract and flap servos so each can be identified as they are
going to be hidden inside the wing. Tie the string around all
three leads and carefully pull them through the wing and out
through the hole.
Hint
: If you have a short extension or Y-harness handy,
you may want to attach it temporarily to the flap servo
lead as it will make it easier to connect the flap servo
to the receiver while the servo installation is being
finalized.
Step 19
Use a pushrod keeper to connect the flap pushrod to the flap
servo horn.
Step 20
If you have a three-position flap switch, it is recommended
to set the end point to 0%. This will make installing the flap
much easier.
Step 21
Place the flap servo into position and check the
measurement for the mid flap setting. You may need to
adjust the length of the pushrod to achieve the correct
measurement.
Note
: If you have a two-position switch, you will not
need to make this measurement. You will only be
setting the ‘up’ and “down” flap positions.
Important
: Do not operate the flap using the radio
system at this time. If the throws are too great, it could
damage the servo if the servo moves more than the flap
can. Setting the throws to 0% at your radio as a starting
point is the best method for installing the flap servo. If
you have not set the throws to 0%, simply lift the flap
servo cover from the wing BEFORE operating the flap
servo from the radio system to make sure the servo
does not bind when operated.