Sandel ST3400, Installation Manual

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ADF Optional (for RMI) Optional (for RMI)
OAT Probe Required for Corrected Baro Alt Required for Corrected Baro Alt
1.2.4 FAA TAWS Requirement by Type of Operation
The FAA has mandated that all U.S.-registered turbine powered aircraft that have
six or more passenger seats be equipped with a TAWS no later than March 5,
2005.
Depending on the number of seats and the type of operation, the TAWS
requirement will be for a Class A system or a Class B system.
FAA TAWS REQUIREMENT BY TYPE OF OPERATION
Class Type of Operation Number of Passenger Seats
Class A FAR Part-121 ALL
Class A FAR Part-135 10 or more
Class B FAR Part-135 6-9
Class B FAR Part-91 6 or more
1.2.5 RMI Description
The ST3400 RMI function is provided to allow the ST3400 to replace an existing
installed electromechanical RMI. The Sandel RMI displays aircraft heading
information on a calibrated compass card read against a fixed lubber line.
Bearing is provided to both a primary pointer and a secondary pointer, each of
which is read against the compass card.
Each pointer may be switched independently to any installed navigation source,
which may be a VOR, ADF, or the GPS/FMS waypoint. The ability to assign the
GPS/FMS to a bearing pointer is unique to the ST3400 RMI.
If the navigation source has an invalid state available, the associated bearing
pointer will be removed completely from the display instead of being parked at
90° as is common in mechanical RMI’s. Each pointer may be independently
turned on or off and independently selected to the aircraft navigation sources.
1.2.6 Terrain Database
The ST3400 provides predictive “look ahead” warnings by comparing it’s internal
terrain database to positioning information provided by the GPS, INS, or FMS
system. The terrain database includes obstacles. For a Class A installation,
additional information is received from a radar altimeter. Altitude information is
received from GPS or airdata computer.
82002-IM-L ST3400 INSTALLATION MANUAL
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