Reassessment of the Aluminum Bottom Carriage for the XM198 Howitzer
ARMY ARMAMENT COMMAND ROCK ISLAND IL SYSTEMS ANALYSIS OFFICE
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A decision risk analysis was performed to compare the expected cost, schedule, and technical risks of the current development of a steel bottom carriage for the XM198 155mm Howitzer with those of a proposed parallel development of an aluminum version of the bottom carriage. Computerized VERT simulation networks were used to represent the time and technical risk interrelationships among the activities and decision points of the alternative programs. Expected costs were based on an approximation of the planned XM198 buy with the proportion of steel or aluminum carriages determined by alternative production change-over dates.