CHAPTER 27
PAGE 12
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RA - FLUGZEUGBAU GmbH
SERVICE MANUAL EXTRA 200
PAGE DATE: 1. July 1996
27-10-00 AILERONS
(Refer to Figure 10) The aileron (1) is direct mechanical
linked to the control sticks (6, 7) by the aileron center
linkage (10) with spade arm, push-pull rods (8), bellcranks
(9) and the torque tube (5). The bell cranks have two sealed
ball bearings. Each aileron is mounted at three points in
spherical bearings pressed into aluminium hinge arms. For
lightning protection reason each hinge arm is grounded to
the corresponding attachment bracket at the aileron by
bonding leads. The rod end bearings of the push-pull rods
located in the wing are also interconnected by bonding
leads. The travel stops (22) are located at the torque tube
next to the rear control stick (7).
To reduce pilot's hand forces the hinge line of the ailerons
is positioned at 20 - 25% of the aileron chord. Furthermore,
the ailerons are equipped with spades. To prevent flutter the
ailerons are mass balanced in the overhanging leading edge.
Two access panels are located at the bottom surface of each
side of the wing.
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