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PILOT'S OPERATING HANDBOOK
SUPPLEMENT
EMERGENCY LOCATOR
TRANSMITTER (ELT)
SUPPLEMENT
EMERGENCY LOCATOR
TRANSMITTER (ELT)
SECTION 1
GENERAL
The ELT consists of a self-contained dual-frequency radio transmitter
and battery power supply, and is activated by an impact of 5g or more as
may be experienced in a crash landing. The ELT emits an omni-directional
signal on the international distress frequencies of 121.5 and 243.0 MHz.
(Some ELT units in export aircraft
transmit
only on 121.5 MHz.) General
aviation and commercial aircraft, the FAA, and CAP monitor 121.5 MHz,
and 243.0 MHz is monitored by the military. Following a crash landing, the
ELT will provide line-of-sight transmission up to
100
miles
at
10,000 feet.
The ELT supplied in domestic
aircraft
transmits on both distress frequen-
cies
simultaneously
at
75 mw
rated
power output for 48 continuous hours
in the temperature range of -40°F to
+131 °F
(-40°0
to +55°0).
The ELT unit in
export aircraft transmits on 121.5 MHz at 25 mw rated power output for 100
continuous hours in
the
temperature range of -40°F to +131
°F
(-40°0 to
+55°0).
The ELT is readily
identified
as a bright orange unit mounted behind
the baggage compartment wall
in
the tailcone. To gain access to the unit,
remove
the
baggage compartment wall. The ELT is operated by a control
panel at the forward facing end of
the
unit (see figure 1.)
SECTION 2
LIMITATIONS
There is no change to
the airplane
limitations when this equipment is
installed.
1
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