Accession Number:

ADA188002

Title:

An Investigation of Substituting Class S Parts for Class B Parts in Air Force Electronics Systems

Descriptive Note:

Master's thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF SYSTEMS AND LOGISTICS

Personal Author(s):

• Francis, David B.

Report Date:

1987-09-01

Pagination or Media Count:

77.0

Abstract:

The current emphasis on increasing the Air Forces war-fighting capability has pushed reliability to the fore-front. One successful method used to increase the reliability of satellite systems is the use of expensive, but highly reliable, class S electronic parts as opposed to the class B parts normally used in avionics and ground electronic systems. Using MIL-HDBK-217D, the author predicted range of potential gains in reliability caused by substituting class S parts for class B parts for five avionics systems. Then the cost versus quantity relationship was used to calculate potential costs for quantity buys of class S parts. MITREs Milstar life cycle cost LCC model was used to calculate the change in LCC due to the higher reliabilities and new acquisition costs. The research found that significant LCC savings were possible when class S parts were substituted for class B parts. Keywords Theses Trade off analysis Cost effectiveness Systems reliability Mean time between failure.

Descriptors:

• *ELECTRONIC EQUIPMENT
• *PARTS
• *SUBSTITUTES
• *RELIABILITY(ELECTRONICS)
• MATHEMATICAL MODELS
• AVIONICS
• COMPUTERIZED SIMULATION
• GROUND LEVEL
• THESES
• COSTS
• ARTIFICIAL SATELLITES
• WAR POTENTIAL
• AIR FORCE EQUIPMENT
• MEAN
• LIFE CYCLE COSTS
• RELIABILITY
• TIME
• AIR FORCE
• ACQUISITION
• COST EFFECTIVENESS
• QUANTITY

Subject Categories:

• Logistics, Military Facilities and Supplies

Distribution Statement:

APPROVED FOR PUBLIC RELEASE