Inter Range Instrumentation Group B Time 



Figure 4. Typical poor trace of velocity versus time from first test 

 performed in 100 feet of water in November 1974. 



Inter Range Instrumentation Group B Time 



falling in water 



slope is deceleration 



change in slope means a 

 change in deceleration 



Figure 5. Typical good trace of velocity versus time from test 

 performed in 70 feet of water in April 1975. 



15 



