Super 80 Professional – AOM
LANDING GEAR
Section 18 Page 2
Super 80 Professional – Aircraft Operating Manual
Coolsky, 2018
GENERAL
The airplane is equipped with a fully
retractable tricycle landing gear consisting
of nose gear and main gear assemblies. The
landing gear is actuated by the landing
gear handle. When retracted, the landing
gear is fully enclosed by doors. In case of a
hydraulics failure, the landing gear may be
mechanically released to freefall to the
extended locked position.
Braking is provided by dual hydraulic multi-
disc wheel brakes with anti-skid systems
(ABS) on the main gears.
A visual and aural indicating and warning
system provides indication of gear and
brake system status.
Spray deflectors are installed on both main
gear and nose gear assemblies to minimize
water and slush ingestion on take-off and
landing.
A tail bumper assembly, mounted on the
bottom of the aft fuselage, prevents
structural damage if the aft fuselage should
make contact with the ground.
Nose Gear
The nose gear assembly is steerable, has
dual wheels, and is mounted in a wheel well
in the forward lower section of the nose of
the airplane.
A ground shift mechanism, mounted on the
nose gear strut, is operated by compression
and extension of the nose gear strut. This
mechanism is used to establish ground or
flight modes of operation.
Nose Gear Doors
The nose gear wheel well doors consist of
two forward doors and to aft doors. The
forward doors are closed when the gear is
extended.
Nose Wheel Steering
The nose wheel steering system is
hydraulically controlled through a full range
of 164 degrees, 82 degrees to either side of
center, by a steering wheel located on the
captain’s left console. When the steering
cylinders are in the neutral position, they act
as shimmy dampers.
Main Gear
The airplane is equipped with two main
landing gear and one nose gear, all with
dual wheels and locks mounted on a shock
strut. When extended, each main landing
gear is locked down by over-center linkage.
When retracted, the main landing gear
assemblies are held up by hydraulic
pressure, providing the engine driven pumps
are selected to supply 3000 PSI. If the pumps
are selected to supply 1500 PSI, the main
gear will rest upon the doors. If hydraulic
power is unavailable for gear extension, the
main gear doors latches may be released
by the emergency gear extension lever.
