17
F E I B A O F 1 8 - f
Repeat the last 8 steps for the flaps and ailerons when you are done mounting the servos.
You will need 12" extensions on the aileron servos. The flap servos, of course, only travel
down, so adjust your linkages and servos accordingly, so that they are all the way at one end
when the flaps are up(neutral, level with the wing), and all the way at the other end when flaps
are down. Note that you will need a servo reverse / programmer, a JR Matchbox, a reversed
servo, or two separate channels for normal setup of the flaps, or one will work backwards. If you
are using the now popular Spektrum DX7 radio, you will not have a spare channel to program
the second flap to move correctly. Here is a trick to allow you to run both flap servos off one
channel with just a regular servo y-harness.
Install the flap servo into the right wing normally. For the left wing, do this: Cut two scrap
plywood blocks as shown, the same width as the existing servo mounts, but about 1" long.
Epoxy those blocks into place, level with the existing mounts. Do not epoxy them to the
mounts, but only to the wings and to the little corner triangular blocks that hold the servo cover
hold-down screws.
when the new blocks are thoroughly dry, cut away the old ones. A few strokes of a sharp
exacto will do it.
Trim the blocks for your servo. Make a cutout for the servo lead
Summary of Contents for F18-f
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