MIL-STD-1796A(USAF)
not performed, would significantly degrade performance and operational readiness." This category generally has very limited application in electronics, but in cases where it does apply, the design should include ample margin to preclude early and unscheduled maintenance which could adversely impact the operational capability and availability of the weapon system.
"Safety of flight tests" include any test or analysis needed to show that an item will not cause a hazard in the aircraft. For most avionics, this includes operation over the range of temperature, altitude, humidity, shock and vibration expected in flight, as well as explosive atmosphere. Tests to show long-term durability, including fungus resistance, salt fog, durability/life, etc., are sometimes not required prior to first flight. Delaying such tests increases risk that problems identified by the test will generate design changes and force some flight tests to be repeated, but this risk must be weighed against the schedule delay associated with performing full qualification prior to flight.
5 DETAILED REQUIREMENTS
The following paragraphs provide detailed requirements associated with each of the tasks summarized in TABLE I.
5.1 Phase I: Design information (proposal and contract).
The user and procuring activity must provide basic design information. This design information includes operational requirements, maintenance concepts, mission profiles, mission environments, design life and usage constraints. Phase 1 defines things that must be available to start a formal development contract. They may be the result of a material solution analysis, concept/technology development program, user requirements development, RFP development, offerors' proposal development, or negotiation of a contract.
5.1.1 Planning and coordination.
System performance requirements, including system usage requirements will be established by the contract. The procuring activity shall require the offerors to propose and implement an Avionics Integrity Master Plan (AIMP) which addresses the AVIP requirements of TABLE I either directly or by reference to other documents. The procuring activity shall define the design life, environmental, usage, reliability and other integrity-related requirements to be incorporated in the RFP and the contract. The AVIP requirements shall also be flowed down to subtier/ subcontracted efforts by the prime contractor.
5.1.2 Design criteria.
The procuring activity should define design life, reliability, environmental, usage, and other integrity-related requirements at the system level. Subtier design criteria shall be proposed by the offeror and included in the contract. The statement of work (SOW) should reflect the activity of the AIMP.
5.1.3 Characterizing the environment.
The RFP and specification shall define the environments in which the system will be used (defined at the system level). This should include temperature, altitude, shock, vibration, humidity, etc., as applicable. If these parameters can't be defined prior to contract award, then
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