7-4 DESCRIPTION OF AIRPLANE AND SYSTEMS / LANDING GEAR SYSTEM
ICON A5-B / PILOT’S OPERATING HANDBOOK CHANGE A2
CHAPTER 7
7.3.2 ROLL TRIM SYSTEM
Should it be needed, roll trim is achieved with a fixed tab on the
bottom of the inboard end of one of the aileron trailing edges. Trim is
adjusted by changing the length of the tab. If the airplane tends to
roll to the right, a tab is added to the left aileron and vice versa. The
tab length is selected at the factory and should not require
adjusting.
7.3.3 WING FLAP SYSTEM
The A5-B incorporates single-slotted flaps in the wing trailing edge.
The flaps serve to lower stall speed and also add aerodynamic drag.
Extending flaps also decreases pitch attitude, aligning the hull for
minimum hydrodynamic drag and maximum pitch stability.
The wing flap system is electrically actuated using a flap-shaped
switch on the center console. The system moves the flaps between
0°, 15°, and 30° settings. The flap surfaces are driven down by an
electro-mechanical actuator and driven up by individual gas springs,
one per surface. It is possible to deflect the flap by hand during
pre-flight inspections by grasping the flap trailing edge, moving the
surface downward, then allowing the spring to return the surface to
neutral.
NOTE: When moving a flap by hand, it is possible that
the flap will stick at the extreme limit of its
travel. This is normal; raise the flap slightly
and the spring will return it to neutral.
NOTE: When taxiing or parking with a strong tail-
wind, it is possible that one or both flaps will
deflect and bang against the stops. This situ-
ation can be alleviated by fully extending the
flaps when in a strong tailwind. Use of gust
locks are recommended while parked or tied
down.
7.4 LANDING GEAR SYSTEM
The A5-B features a retractable tricycle landing gear with
self-centering 360° castering nose wheel. Simple fiberglass gear
legs provide shock absorption. Hydraulic disk brakes are used on
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