SECTION 7
DESCRIPTION
SOCATA
MODEL TB 20
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© 1988, 1991, 1992, 1994 to 1996, 1997, 2000 -
socata
- All rights reserved
June 30, 1988
Revision 5
7.57
AUXILIARY DRY AIR PUMP (if installed)
Refer to Section 9 ”Supplements”.
AUTOPILOT
(if installed)
Refer to Section 9 ”Supplements”.
STALL WARNING SYSTEM
The airplane is equipped with a vane–type stall warning unit in the leading
edge of the left wing. The unit is electrically connected to an aural warning.
The vane in the wing senses the change in airflow over the wing and operates
the warning unit, which produces a tone over the alarms speaker. This
warning tone begins between 5 and 10 knots above the stall in all
configurations.
The stall warning system should be checked during the preflight inspection
by momentarily turning on the battery switch and actuating the vane in the
wing.The system is operational if a continuous tone is heard on the alarms
speaker.
STATIC DISCHARGERS
(if installed)
As an aid in IFR flights, wick–type static dischargers are installed to improve
radio communications during flight through dust or various forms of
precipitation (rain, snow or ice crystals).
Under these conditions, the build–up and discharge of static electricity from
the trailing edges of the wings (flaps and ailerons), rudder, stabilator,
propeller tips and radio antennas can result in loss of usable radio signals on
all communications and navigation radio equipment. Usually, the ADF is first
to be affected and VHF communication equipment is the last to be affected.
Installation of static dischargers reduces interference from precipitation
static, but it is possible to encounter severe precipitation static conditions
which might cause the loss of radio signals, even with static dischargers
installed. Whenever possible, avoid known severe precipitation areas to
prevent loss of dependable radio signals. If avoidance is impractical,
minimize airspeed and anticipate temporary loss of radio signals while in
these areas.
