1. You are the dispatcher for your Air National Guard Unit. You have two aircraft available. The safe operation of the A/C type depends on the type of service for which it is used. The planes have a rated life of 1000, 600, or 2,000 hours when used for combat, training or surveillance respectively. One of these aircraft [A] has seen 50 hours of combat service, 300 hours of training service and 400 hours of surveillance service. The other aircraft [B] has seen 500 hours, 150 hours and 300 hours of combat, training, and surveillance respectively. Using Miner's Rule, answer the foollowing questions.
(a) How many hours of training service life may each A/C be used before it must be overhauled?
(b) Combat and surveillance missions, each of 200 hours, must be completed. Which aircraft should be sent on each mission, and how much useful life will each aircraft have when it returns?
