SCIENTIFIC OFFENSIVE 



Fortunately, the pressure experts under Dr. Hart- 

 mann had faced these problems back in the United 

 States months before. Even during the autumn of 1945 

 informal exploratory conferences were held among 

 scientists and engineers from the Naval Ordnance 

 Laboratory, the David Taylor Model Basin, and else- 

 where. The difficulties were discussed, constructive 

 suggestions were offered, criticized, revised, and slowly 

 elaborated into sound designs. Whiteprints were 

 rushed to the machine shops, finished instruments were 

 tested, taken apart, adjusted and re-assembled. 



From many shops and laboratories, crates filled 

 with instruments were started on their way by rail 

 and air freight to the West Coast. The crates were 

 almost always heavy, and stamped SECRET in large 

 letters. Special shipping orders were prepared and 

 guards provided. In all, over 5000 pressure gages made 

 the journey, to snatch permanent meaning from tran- 

 sient chaos. 



Even on the KENNETH WHITING, as she 

 steamed westward at 16 knots, the specially-installed 

 machine shop was busy with Ph.D's and technicians 

 working with lathes, drill presses, and the ever-needed 

 screwdriver. 



But now, as A-Day approached, emphasis shifted 

 to installing the instruments. Let us look over the 

 kinds of pressure gages which were installed. 



1. Can-Type Peak-Pressure Gage. This gage has 

 been described on a previous page. Hundreds were 



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