The system should include provision for a towed, submerged, con- 
stant depth device to measure wave spectra and transmit this data to 
the Master Shipboard Data Logging and Processing System for correlation 
with other recorded data. 
Sensor Time Responses All sensors should afford a 95% response to a 
step function in a period of 1 second. 
d. Recording and Readout: 
Above data must be a direct and immediate input into the Master 
Shipboard Data Logging and Processing System, on a continuous and/or 
intermittent recording basis. 
Potential Users and Estimated Number of Units Which They May Requires 
a» U. S. Navy (basic research, applied research, and oceanographic 
survey ships) - 20 to 30 
b. U. S. Coast and Geodetic Survey - 10 to 15 
c. Certain activities within Scientific Community - 10 to 20 
d. Bureau of Commercial Fisheries - 2 to 8 
e. U. S. Weather Bureau - 10 to 20 
Totals 52 to 93 
Recommendation Where Instrument Should Be Researched and Developed: 
U. S. Industry. 
_ Relative Importance to U. S. National Oceanographic Programs 
Instrument System priority 5. 
47 
