NPFC - MIL-E-5400
ELECTRONIC EQUIPMENT, AEROSPACE, GENERAL SPECIFICATION FOR
| Organization: | NPFC |
| Publication Date: | 16 November 1979 |
| Status: | inactive |
| Page Count: | 71 |
scope:
This specification covers the general requirements for airborne electronic equipment for operation primarily in piloted aircraft. The detail performance and test requirements for a particular equipment shall be as specified in the detail specification for that equipment.
The electronic equipment for which the general requirements for design and manufacture are outlined shall be of the following classes, as specified (see 6.2):
Class 1 - Equipment designed for 50,000 ft. altitude and continuous sea level operation over the temperature range of −54° to +55°C (+71°C intermittent operation).
Class 1A - Equipment designed for 30,000 ft. altitude and continuous sea level operation over the temperature range of −54° to +55°C (+71°C intermittent operation).
Class 1B - Equipment designed for 15,000 ft. altitude and continuous sea level operation over the temperature range of −40° to +55°C (+71°C intermittent operation). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to Commanding Officer, Naval Air Engineering Center, Engineering Specifications and Standards Department (Code 9313), Lakehurst, NJ 08733 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.
Class 2 - Equipment designed for 70,000 ft.altitude and continuous sea level operation over the temperature range of −54° to +71°C (+95°C intermittent operation).
Class 3 - Equipment designed for 100,000 ft. altitude and continuous sea level operation over the temperature range of −54° to +95°C (+125°C intermittent operation).
Class 4 - Equipment designed for 100,000 ft. altitude and continuous sea level operation over the temperature range of −54° to +125°C (+150°C intermittent operation).
The addition of the letter "X" after the class number, e.g. (Class 2X), will identify the equipment as operating in the ambient environment of that class, but requiring cooling, from a source external to the equipment.
intended Use:
This specification is intended for use to incorporate in detail equipment specifications, those requirements which are common to most airborne electronic equipments.
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