YAK 130
BVM ©2016 29 Mar. 23, 2016
Vertical Fin and Rudder
The Yak 130’s Fin/Rudder is very easy to remove for transit purposes. Just (2) screws and
(2) electronic plugs are used to mount/release them. Use a 9/64 hex head wrench to
loosen/tighten the screws.
The Fin and Rudder come out of the box
ready to mount.
The rudder should travel 1-1/4” left and right
measured at the top. If your Yak rudder
travel is a bit shy, the following technique
will help.
Apply masking tape as shown to protect
the painted surfaces.
Use Perm-Grit #103 (BVM# FXT-103)
Flex Strips cut to about 2” in length to
grind a bit of the fin trailing edge away.
The rudder control arm is accessed from
a hole in the left side of the fin. Tighten it
securely with a 3/32” hex wrench.
Apply Dry Lube to the carbon rods and
mating aluminum bracket receptacles.
Connect the light and servo plugs. Slip
the Fin Rods onto the receptacles.
Securely tighten with the 9/64” Hex
wrench. Holes in the fin base provide
access.
“Dry Lube” is a very handy product for all
mechanical joints and also has good anti
corrosion properties.
Apply a drop or two of BVM’s Dry Lube
(#1947) to both metal ball links and a
drop of Z-42 to the servo arm screw.
