Carf-Models Composite-ARF Yak-55 SP Instruction Manual page 10

Composite-ARF Yak-55 SP (2.6m span)
The Stabilisers:
The stab parts are also vacuum bagged sandwiched. The
rudder and elevator control surfaces are hinged with 4mm
ø aluminium tubes, fitted through phenolic hinge bearing
plates which are installed during manufacture for perfect
alignment.
The rudder and elevator design allows for at least 50
degrees throw. All the structural parts are preinstalled. The
horizontal stabs are mounted with one 20mm tube and one
aluminium anti-rotation pin each. Please remember during
assembly of the plane that every gram of weight should be
saved in the tail area.
Take Care:
Composite sandwich parts are extremely strong, but fragile
at the same time. Always keep in mind that these contest air-
planes are designed for minimum weight and maximum
strength in flight. Please take care of it, especially when it
is being transported, to make sure that none of the critical
parts and linkages are damaged. Always handle your air-
plane with great care, especially on the ground and during
transport, so you will have many hours of pleasure with it.
A couple of views inside the new
factory, showing the a small part of the
Finishing area, and the Quality
Control/Assembly areas with the 2.6m
Yak-55SP, 2.6m Extra 330L, 2.3m Extra
and Rookie production lines.
techsupport@composite-arf.com
(above) A general view of the
Yak-55SP stabilisers.
(below) The lightweight fin-post
has the phenolic rudder hinges
already installed at the factory
ensuring perfect alignment.
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