Edgetech 4125 Series User Manual

2-11
2.2 4125 Towfish
The specifications for the 4125 Towfish are shown below, and an ICD array drawing is provided in FIGURE
2-7. Also, a drawing of the Towfish connected to an optional Depressor Wing is provided in Figure 2-8:
SPECIFICATION
VALUE
Size:
114.8 cm (45.2 in.) long; 9.6 cm (3.75 in.) diameter
Weight in air:
20.4 kg (45.0 lbs.)
Weight in salt water:
14.4 kg (31.6 lbs.)
Construction:
Stainless steel
Depth rating:
200 m (656 ft.)
Maximum tow cable length:
600 m (loop resistance cannot exceed 14 ohms). Contact
EdgeTech Customer Service for the specific cable types.
Tow cable conductors:
RG-58 coax
Kevlar tow cable breaking load:
545 kg (1200 lbs.)
Input power:
75 VDC, 50 watts maximum
Towing speed
1–8 knots
Shear force:
420 kg (930 lbs.)
Frequencies:
400/900 kHz or 600/1600 kHz
Pulse type:
CHIRP
Data interface:
VDSL
Operating range:
150 m (400 kHz)
75 m (900 kHz)
120 m (600 kHz)
35 m (1600 kHz)
Across track resolution:
2.3 cm (400 kHz)
1.0 cm (900 kHz)
1.5 cm (600 kHz)
0.6 cm (1600 kHz)

Edgetech 4125 Series Specifications

General

Brand	Edgetech
Model	4125 Series
Category	Sonar
Language	English