AFGS-87219 Electrical Power Systems, AircraftThis specification establishes the performance requirements and verifications for electric power subsystems EPS for aerospace vehicles, including aircraft, helicopters, and missiles.

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AFGS�87219B APPENDIX A

REQUIREMENT GUIDANCE (A.3.8.2)

The PHST characteristics to be required should be derived based on the constraints imposed by the distribution environment defined in the integrated support plan. MIL-STD-1367 and the documents referenced therein may provide guidance to tailor the PHST characteristics into requirements to be satisfied by the EPS and its subsystems and components.

REQUIREMENT LESSONS LEARNED (A.3.8.2) A.4.8.2 Packaging, handling, storage, and transportation.

The PHST requirements shall be verified by ------------.

VERIFICATION RATIONALE (A.4.8.2)

Thorough verification is necessary to insure that the EPS and its components have been designed so they can be efficiently moved within the distribution environment.

VERIFICATION GUIDANCE (A.4.8.2)

Verification of PHST characteristics should be accomplished through a combination of inspection, analysis, and test. The specific parameters should be established in accordance with the distribution environment defined in the integrated support plan. Testing should be performed whenever possible to get the most reliable verification results. Actual distribution environment tests are prescribed in MIL-STD-810, Federal Test Method Standard 101, and various ASTM Test Method Standards.

VERIFICATION LESSONS LEARNED (A.4.8.2) A.3.8.3 Tools.

Tools required to perform on aircraft organizational level maintenance functions shall be

limited to those on the STAM2 list. Tools required to perform intermediate level functions shall consist of ------------.

REQUIREMENT RATIONALE (A.3.8.3)

This requirement is to minimize the number of tools and tool types required in the aircraft's maintenance system, to effect standardization of those tools, and to impose these requirements on the design of subsystems and equipment for the weapon system. The intent of this requirement is to place the focus of maintenance tool acquisition in the systems engineering process so that it receives appropriate attention during the system development process. It is also the intent of the requirement to keep the size of the maintainer's tool kits to a minimum.