U._S. NAVY HYDROGRAPHIC OFFICE REQUIREMENTS 
FOR 
OCEANOGRAPHIC INSTRUMENT SUIT FOR SHIPS-OF-OPPORTUNITY 
Sketches 
(To be provided) 
Primary Uses 
This is a special oceanographic "instrument suit" for utilization on 
certain "ships-of-opportunity" to collect much needed oceanographic data. 
These ships-of-opportunity include, but are not restricted to: (1) cer- 
tain U. S. Navy combatant Fleet units such as aircraft carriers, cruisers, 
destroyers, amphibious ships, mine sweepers, and submarines, (2) U. S. Navy 
Radar Picket Ships (YAGR's and DER's), (3) certain U. S. Navy auxiliary 
units (oilers, refrigerator ships, cargo ships, ice breakers), (4) units 
of Military Sea Transportation Service, (5) units of U. S. Merchant 
Marine, (6) U. S. Air Force Ocean Range Vessels, (7) larger units of U. S. 
Fishing Fleet. The installation and operation of this "instrument suit" 
on the above-indicated platforms is predicated on a not-to-interfere 
basis with the ship's primary mission. 
Requirements and Specifications: 
a. This "instrument suit" is primarily designed for utilization by 
ships "underway", as during long transits between ports, extended opera- 
tions in certain geographic areas, and involving special operations re- 
lated to the primary mission of the ship. 
b. This"instrument suit" to perform reliably and accurately, with 
minimum maintenance, at ship's speeds of O to 18 knots and in sea states 
OQ through 5. 
ce This "instrument suit" to be so designed and constructed as to 
be capable of being installed and removed from one platform to another 
with minimum expanditure of time, effort and money. In this connection, 
it should be compact, light weight, rugged and reliable to withstand the 
severe treatment in shipment to, installation on and removal from the 
various ship platforms. 
d. Components: 
(1) AN/UQN type of Sonic Sounding Set to record 0 to 6,000 fathoms. 
