UNITED STATES DEPARTMENT OF THE INTERIOR 



Stewart L. Udall, Secretary 



Frank P. Briggs, Assistant Secretary Jor Fish and Wildlife 



FISH AND WILDLIFE SERVICE, Clarence F. Pautzke, Commissioner 



Bureau or Commercial Fisheries, Donald Ti. McKenian, Direftor 



VITAL STATISTICS OF TOWNS END CROMWELL 



VITAL STATISTICS OF CHARLES H. GILBERT 



Year bullc 



Length, overalls 

 Tonnage, gross — 

 Speed, cruising- 

 Speed, maximum 



_1963 



6 in. 



5 35 



Vesscl range 



Vessel endurance 



Accommodacions: 



Officers and crew_ 

 Scientific staff 



12.5 knot 



13.5 knot 



-10,000 mile 

 60 day 



Capabilities: 



Electronic tt-ieme taring 

 Biological studies 

 Oceanographic measurements 

 Longl ining 

 Behavior studies 

 Kidwater trawling 

 Pish scouting 

 Gill net fishing 



Aitclllary equipment: 

 Radar 

 Lor an 



650-fathom Slcnrad echo sounder 

 2,500-fathom Furuno echo sounder 

 6,000-fathom Edo echo sounder 

 Ba thy sonde 



Recording pyrheliometer 

 Recording thermograph 



Gyroscopic compass and steering installation 

 Electric deck log 

 Radio direction finder 



Hydraulic controls for variable pitch propellers 

 Single sideband radio set with sppclal Fish and Wildlife 

 frequencies and 230-watt radio telephone and CW 



Uodervaccr observation facilities: 

 Inul bulb with viewing ports 



Year built 1952 



Length, overall 119 ft. 9 in. 



Tonnage, gross 196.5 



Speed, cruising 9.0 knots 



Speed, maximum 10.5 knots 



Vessel range 6,500 miles 



Vessel endurance 80 days 



Accommodations : 



Officers and crew 12 



Scientific staff 4 



Capabilities : 



Oceanographic measurements 

 Longl ining 

 Live-bait fishing 

 Behavior studies 

 Midwater trawling 

 Fish scouting 

 Gill net fishing 



Ancillary equipment: 

 Radar 

 Loran 



Gyro compass 



400- fathom Bendix recorder 

 6,000-fathom Edo echo sounder 

 Single sideband radio set with special Fish and 



Wildlife frequencies and radio telephone 

 Spcrry automatic steering 

 Radio direction finder 



Underwater observation facilities; 

 Stern underwater viewing chamber 

 Modified bulbous bow with underwater viewing ports 



Cover : The Laboratory's research ship Townsend Cromwell 



FEBRUARY 1965 



