16.
q
Screw a 2-56 x ½" bolt into the root of each tail rotor blade as shown until about 3/16"
(5mm) extends out the opposite side. Interlock the two blades as shown. Place a plastic
#2 washer over the end of each bolt using dabs of grease to hold the washers in place.
17.
q
Slip the interlocked blades over the end of the tail rotor hub, and screw in the 2-56 bolts
until the bolt heads are seated against the plastic. You may need to unscrew the 2-56
bolts a few turns first to get the blades to fit onto the hub. Make sure the blades are
correctly oriented on the hub and pivot freely.
18.
q
Thoroughly sand the flat side of the gearbox and the corresponding area of the plastic tail
fin with coarse (120 grit) sandpaper to completely remove the glossy surface. Apply
THICK
CA to the fin and gearbox, and hold the fin in position against the gearbox for
about ten seconds or until the glue starts to set.
Note:
CA accelerator can cause certain plastics to crack or become brittle, so do not use
CA accelerator on or near the gearbox or tail fin. Also, do not use thin CA on the tail
fin; it will not fill the gap between the fin and gearbox and the fin will break off easily.
19.
q
Locate the
Arlton Gyro
stabilizer assembly you built previously. Loosen the 6-32
setscrew in the pivot mount, and remove the push/pull rod. Place a few drops of oil on the
push/pull rod and slide it through the tail rotor shaft as shown in Fig. 10-4.
Construction Manual
Tail Boom
LITE MACHINES
10-5
Apply glue here
Push/pull rod
Apply oil
Completely screw in 2-56
bolts after placing blade
assembly onto hub
4-40 bolts
face gearbox
Hub
Fin
Tail rotor
bellcrank
2-56 x 1/2” bolt
(do not over-tighten)
Figure 10-4.
