.
Servos for which plastic mounts are not
available can be screwed directly to at
least 3/8" square hardwood rails placed
across the cabin as shown in the
accompanying drawing. With rubber
grommets installed in the servo
mounting holes, mark the spots for
drilling the pilot holes for screws. Space
the servos at least 1/8" apart and do not
have them contacting the hardwood
mounting rails except on the grommets.
Using a washer on the wood screws,
mount the servos to the rails. Do not
tighten the screws down against the
grommets since this will cause vibration
to be trasferred to the servos. The
washer should just rest against the
grommet without compressing it.
The receiver battery pack should be
wrapped in foam rubber sheet, held on
with rubber bands or masking tape.
Place in as far forward in the fuselage
as possible, preferably under the tank. It
is a good idea to put the package in a
small plastic bag, taped shut around the
battery cable to protect the battery from
accidental fuel leakage.
The receiver should be similarly
wrapped up in foam rubber to protect it
from engine vibration. Cover it with a
plastic bag also. Stow this completed
package in front of the servos. Make
certain that the receiver will stay in
place during aerobatic maneuvers.
The switch may be mounted wherever it
is convenient on the side of the model,
preferably the side away from the
engine oil. Another good spot is inside
of the cockpit where it may be reached
easily. (See photo in "Completing The
Cockpit" section 18.)
"Brick" type receiver and servo
combinations will have to be mounted
on rails as specified by the
manufacturer of the radio equipment.
"A model, engine or radio that is not prepared and working properly on the ground before takeoff will not improve in the
air---IT WILL GET WORSE! 'There is no point in attempting to fly until everything is 100% correct."
The output arms of some servos will take 1/16" wire or the pin in a RC link clevis
without it being necessary to enlarge the hole. The fit will be snug but usually will
not be tight enough to cause too much friction and put a load on the servos,
Should it appear to be too tight, drill the holes out with number size drills only,
selected carefully. A No. 51 is about right, no larger than' a No. 50. An overly
large hole will cause control surface slop and flutter. After installation is complete,
operate all controls to full movement and listen to the servos. If overloaded, they
will probably buzz or hum.
