Part #: 066-3054-01

Model: KI-250






Radar Altimeter Indicator

Part Number :




  • Radar Altitude Indicator for use with KRA-10A Radar Altimeter System
  • Displays analog altitude data from 20-2500 feet AGL
  • Adjustable Decision Height function provided to alert pilot via lamp and aural tone that the aircraft has descended to a selected altitude
  • Self test switch included to enable rapid verification system function
  • Models available with 5V or 14V to 28V / white or red lighting (see table below)



Size: 3.26"W x 3.26"H x 3.94"L Weight: 0.9 lbs.:
Operating Altitude: 45000 ft. Temperature Range: -15 to +71C
Part Number: Description:
066-3054-00 5 volt white lighting
066-3054-01 14 to 28 volt white lighting
066-3054-03 5 volt red lighting
066-3054-04 14 to 28 volt red lighting


- Radio Altimeter Indicator

NSN: 5821-01-356-0861

Price Condition Status

Click on a question below to see the answer. If you have a question about this model that is not answered below, please contact

None, they represent the same unit. Original King Radio part numbers were 9 digits. For example, 066-3056-01. During the Bendix and King merger (i.e. Bendix/King), a new part numbering system was created that converted these 9 digit part numbers to 12 digits. Therefore, 066-3056-01 became 066-03056-0001. Despite this numbering change, units that were originally from the King Radio design still have the 9 digit part number format on the unit dataplate. The 12 digit format for King units appears to be used for catalog and internal Honeywell purposes only. Therefore, any unit that has a zero in its third to last number (i.e. XXX-XXXX-X0XX) has a 9 digit part number (i.e. XXX-XXXX-XXX) on its dataplate / ID Plate.
In January 1989 Bendix/King changed from a nine digit to a twelve digit part numbering system. The new, larger 12 digit numbers allowed for the inclusion of software version into the last two digits of the part number for certain units in which software changed frequently such as EFIS and TCAS processors. Therefore, the two digits immediately preceding the software version indicate the hardware version of the unit.

Different software versions imply different operational features and/or interface capabilities and software modifications imply software repairs (bug fixes) to insure proper operation of these features and interfaces. Software version upgrades frequently require hardware modifications to the unit. Such hardware modifications accompanying software version upgrades do not necessarily change the hardware version of the unit.