MIL-HDBK-502 - Barringer and Associates, Inc.

MIL-HDBK-502: ACQUISITIONALOGISTICSTRIDENT SUBMARINE: LOGISTICS HATCHESAll spaces (except the reactor compartment) are directly accessible via special, largediameter logistics hatches.F-16: COMMON AND INTERCHANGEABLE COMPONENTSMain landing gear assemblies are 80% interchangeable.Flaperons are interchangeable left and right.Horizontal tails are interchangeable left and right.There are 5 common electrohydraulic servos.There are 5 common actuators.Figure 6-8. Logistics Planning6.5 COMMERCIAL EQUIPMENT SUPPORTABILITYThe Department of Defense is adopting new business practices as it shiftsaway from development and toward commercial procurement. Althoughoff-the-shelf items developed for the commercial market frequently meetDoD needs, the long term supportability of these items is much moreproblematical. Since commercial items will probably be used in harsherenvironments than those for which they were developed, kept in servicelonger than intended by the commercial developer, and required tointerface with other systems, the logistical implications of using commercialitems need careful scrutiny.6.5.1 Acquisition Logistics Lessons LearnedThe following report describes the recent experiences of the AirIntelligence Agency in acquiring electronics systems:“The agency is no longer developing its own systems;currently our systems are made up entirely of COTSequipment (excluding interfaces and occasional software).We use small quantities of equipment; generally less thanfive of any particular item. COTS equipment complements6-22