INCH-POUND
MIL-PRF-85281C(AS)
20 July 1998
SUPERSEDING
MIL-H-85281B(AS)
30 August 1991
PERFORMANCE SPECIFICATION
HORIZON REFERENCE SET, SHIP MOUNTED
FOR LAMPS MK III HELICOPTER
This specification is approved for use by the Naval Air Systems Command, Department of
the Navy, and is available for use by all Departments and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This specification establishes the performance and test requirements for a
helicopter Horizon Reference Set (HRS).
2. APPLICABLE DOCUMENTS
2.1 General. The documents listed in this section are specified in sections 3 and 4 of this
specification. This section does not include documents cited in other sections of this specification
or recommended for additional information or as examples. While every effort has been made to
ensure the completeness of this list, document users are cautioned that they must meet all
specified requirements documents cited in sections 3 and 4 of this specification, whether or not
they are listed.
2.2 Government documents.
2.2.1 Specifications and standards. The following specifications and standards form a part
of this document to the extent specified herein. Unless otherwise specified, the
Beneficial comments (recommendations, additions, deletions) and any pertinent data which
may be of use in improving this document should be addressed to: Commander, Naval Air
Warfare Center Aircraft Division, Code 414100B120-3, Highway 547, Lakehurst, NJ 08733-
5100, by using the Standardization Document Improvement Proposal (DD Form 1426)
appearing at the end of this document or by letter.
AMSC/NA
FSC 1710
Distribution Statement A. Approved for public release; distribution is unlimited.
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