Edgetech 3200-XS, User Manual

Page: 31 / 74

75-Meter Kevlar Reinforced Tow Cable
2-5
2.3 75-Meter Kevlar Reinforced Tow Cable
The general specifications for the 75-Meter Kevlar Reinforced Tow Cable are shown in
Table 2-5.
b. The value for sub-bottom penetration is the maximum distance beneath the sea floor that a step change of
10% in density can be seen on the sub-bottom display. This assumes that the sediment is gas free (no organic
materials), that the lowest frequency of the pulse spectrum is transmitted and that the vehicle is within 5
meters of the seabed (range for maximum penetration). Lower frequencies reduce attenuation (absorption of
sound). Towing the vehicle close to the sea floor reduces the acoustic footprint thereby reducing scattering
(interfering reflections) from the sea floor and within the sediments.
c. At the -3 dB points, depending on the center frequency.
Table 2-5: 75-Meter Kevlar Reinforced Tow Cable Specifications
Twisted shielded wire pairs: (1) #16 AWG
(2) #20 AWG
Braking strength: 1600 kg (3500 lb)
Working strength: 295 kg (650 lb)
Weight in air: 30.8 kg/100 m (207 lb/1000 ft)
Voltage rating: 600 volts
Bending radius: 25.4 cm (10.0 in.) minimum
Length: 75 m (245 ft) standard