AEROPRAKT-22LS Pilot Operating Handbook
A22LS-POH-04
38
8.9 Full and static pressure system
This system supplies the full (dynamic) and static pressure of the outside air to the
instruments measuring the flight parameters: airspeed, rate of climb and altitude. The
system consists of the full and static pressure probe 1 and full 2 and static 3 pressure lines
connecting the probe to the instruments (see
). Full and static pressure lines have
joints 4 used to disconnect the lines when the left wing is removed during aircraft
disassembly.
The full and static pressure lines are connected to the airspeed indicator. The altimeter and
vertical speed indicator are connected to the static pressure line.
Good condition of the full and static pressure system is important for correct measurement of
the flight parameters and therefore for flight safety. Pilots must take measures to keep the
system in good condition: protect the full and static pressure probe with a cover (marked with
a red "Remove before flight" flag) and inspect the probe and lines during the preflight check
to make sure that they are not damaged or blocked (by water, ice, dirt, etc.).
Fig. 11. Full and static pressure system
8.10 Electrical system
Electrical system of A-22LS serves for generation of electrical power and supplying it to the
onboard electrical consumers.
When engine is running (its RPM is above 1400), electrical power is generated by the engine
alternator, converted by a rectifier-regulator (located on the firewall) and is stored in a 12V
DC 18 Ah battery, located under the left pilot seat. The battery is supplying electrical power
to the consumers (engine starter, instruments, lights, etc.) through the electrical cables of
appropriate section (depending on the consumed current), switches and fuses (located on
