Technical data

Page Date: 6. April 2010 7 - 5
Section 7
Description and Operation of Aircraft and Systems
Pilot´s Operating Handbook
EXTRA 300LT
7.5 FLIGHT CONTROL SYSTEM
7.5.1 PRIMARY CONTROL SYSTEM
The EXTRA 300LT is standard equipped with full dual primary flight controls including
conventional stick-type control columns and adjustable rudder pedals. The primary control
surfaces are operated through a direct mechanical linkage.
7.5.2 LONGITUDINAL FLIGHT CONTROL SYSTEM
The two control columns are interconnected by a torque tube. The control movements are
from there transferred to the elevator by a push rod.
7.5.3 LATERAL FLIGHT CONTROL SYSTEM
Push and pull rods are connected by sealed ball bearings from the torque tube to the
ailerons.
The ailerons are statically as well as dynamically balanced (dynamically with spades).
The ailerons are supported by lubricated, sealed bearings.
7.5.4 DIRECTIONAL FLIGHT CONTROL SYSTEM
The dual rudder pedals with brake pedals are electric adjustable and operate the rudder
through a cable system. Springs keep the cables under tension when they are not operated.
7.5.5 SECONDARY CONTROL
The elevator trim tab is actuated by an electric trim servo located in the right rear fuselage. It
is controlled by a trim switch integrated in the control stick handle. Trim position is indicated
by a LED indicator on the instrument panel.
The canopy lock is operated from the outside by a handle on left side of the canopy by
reaching into the cockpit through the window. Inside a handle is located in both cockpits,
used for locking as well as for normal operation and for emergency release.
The starter/magneto switch is located on the right side of the instrument panel in front of the
rear seat.
7.6 INSTRUMENTATION
The Extra 300LT is equipped with flight instruments in both cockpits.
Instruments and placards can be provided with markings in either metric or English units. The
colour markings in instruments follow US-FAR, part 23 recommendation (see section 2).