B KRA 405
Rev 6, June 2003 IM 006-00104-0006.dwd Page 1-1
SECTION I
GENERAL INFORMATION
1.1 INTRODUCTION
This manual contains information relative to the physical, mechanical, and electrical
characteristics of the Bendix/ King KRA 405. Installation and operating procedures
are also included. Information relative to the maintenance and procurement of re-
placement parts may be found in Section IV, V, and VI of the KRA 405 Maintenance/
Overhaul Manual.
1.2 DESCRIPTION OF EQUIPMENT
The KRA 405 Radar Altimeter System provides the pilot with dependable, accurate
AGL altitude information during the critical approach phase of a flight. The system has
the capability of alerting the pilot when a predetermined altitude (decision height) is
reached. The system also provides altitude information to the flight control system
during the approach.
1.3 TECHNICAL CHARACTERISTICS
TABLE 1-1 KRA 405 Radar Altimeter Technical Characteristics
SPECIFICATION CHARACTERISTIC
TSO COMPLIANCE: C87.
DO-138 ENV CAT AG/A/NJ/AAAEXXXXX.
DO-160A Altitude CAT F2.
PHYSICAL CHARACTERISTICS: Refer to Figure 2-2, Dwg No 155-05153-0000.
WEIGHT: Refer to Figure 2-2, Dwg No 155-05153-0000.
ALTITUDE: 55,000 ft (16,764 m) (Per DO-160A CAT F2).
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature Range: -54 deg C to +71 deg C.
POWER REQUIREMENTS: 27.5 Vdc +/- 20% at 850 mA.
ANTENNA CABLES (2 Required):
Length:
Cable Type:
Total Length 34 ft (10.36 m) max both cables com-
bined.
RG-393.
AIRCRAFT INSTALLATION DELAY (AID): 40 ft (12.19 m) recommended.
57 ft (17.37 m) available.
RELEASED FOR THE EXCLUSIVE USE BY: AIRCRAFT ELECTRONICS ASSOCIATION
UP536434
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