APPENDIX A 

 LIST OF EQUIPMENT AND SPECIFICATIONS 



Seismic operations 



(1) Research vessel 



38-ft (11.6 m) minimum length 



40 sq ft (3.7 m 2 ) minimum table space 



40 sq ft minimum deck space 



110-volt a.c. power 



Compass (gyrocompass desirable) 



Marine radio 



Cruising range: 100-mile (160.9-km) minimum 



Cruising speed: 10-knot minimum 



(2) Sub-bottom profiling system 



(a) Medium resolution, medium penetration 



Penetration capability: 50 to 200 ft (15.2 to 61.0 m) 

 Power output: 300 to 1,000 J 

 Frequency range : 400 Hz to 14 kHz 



(b) High resolution, low penetration 



Penetration capability: 30 ft (9.1 m) 

 Power output 10 kw 

 Frequency range 3.5 to 7 kHz 



(3) Side -scan sonar system 



Frequency range: 95 to 100 kHz 



Port and starboard scanning capability 



500-ft (152. 4-m) range in either direction 



(4) Geographic positioning system 



Range: 20 -mile (32. 2 -km) minimum 

 Accuracy: 10 ft 



(5) Microprocessor 



Interfacing capabilities with positioning system 



(6) Radios 



(a) Marine -band radio 



(b) Two-way radio 



Range: 10 -mile (16 -km) minimum 



(7) Vehicles 



Three minimum for shore personnel 



Al 



