(2) Precision depth/graphic recorder for utilization with 

 AN/UQN Sonic So\inding Set. 



(3) One electronic bathythermograph with associated winch- 

 wire -boom -recorder /readout assembly. 



(4) An automatic recording sea-surface temperature probe. 



(5) A suitcase size meteorological instrument to record 

 automatically key air -sea interface meteorological data, including 

 total incident and reflected solar radiation. 



(6) Towed magnetometer with an all-weather capability. 



(7) An "interim" wave height measuring/recording device. 



In the design and fabrication of this "instrument suit, " consideration 

 shall be given to two different applications: (1) installing all of the 

 above in a small "van" for trans-shipment to and on-deck stowage 

 on the particular ship, or (Z) integrating certain of the above 

 components into already existing "instrument suits" of certain 

 ships such as destroyers, etc. 



e. Accuracies and Range: 



(1) Sonic Sounding Set 



Range: to 6,000 fathoms 



Accuracy: As in present AN/UQN system 



(2) PDR/PGR 



Range: 400 fathom incremental presentation of to 



6, 000 fathom range 

 Accuracy: 1 part per million (time) 



(3) Electronic Bathythermograph 



Range: (1) Depth: to 2, 500 feet 



(2) Temperature: -2 to 35° C. 

 Accuracy: (1) Depth: ± 0. 25% of full range 

 (2) Temperature: *0.1° C. 



(4) Sea Surface Temperature Recorder 



Range: -2 to 35° C. 

 Accuracy: *0. 1° C. 



(5) Meteorological Suitcase - Type Package 



To be determined, but to include: (1) air-surface 

 temperature, (2) barometric pressure, (3) relative humidity, 

 (4) surface wind direction and speed, (5) total incident and re- 

 flected solar radiation with following ranges and accuracies: 



Sensor 

 Air— surface temperature Range: -40 to +70° C. 



Accuracy: ±0. 01° C. 



406 



