Tecnam P2006T - 9. Landing Gear System

Page 7 - 21
Section 7 – Airframe and Systems description
LANDING GEAR SYSTEM
4
th
Edition, Rev 0
9. LANDING GEAR SYSTEM
The landing gear retraction system is of electro-hydraulic type, powered by a re-
versible pump which is electrically controlled by the LG control knob located on
the LH instrument panel and by the legs position micro switches: these ones allow
for detecting landing gear “down-locked” and “up” positions and for alerting the
pilot by aural means should the approach and landing configuration be incorrect,
in terms of flaps/throttle levers/landing gear position, in order to avoid an uninten-
tional gear-up landing.
The system operates in two modes: normal and emergency.
Normal operation provides gear extension and retraction by means of hydraulic
jacks. Gears extension is helped by gravity also.
Emergency operation only provides landing gear extension by means of a hydrau-
lic accumulator which discharges pressurized oil in the above mentioned jacks.
Figure
13.
LG hydraulic system schematic