4 1. Introduction
External Dimensions of Transducer mounting
The external dimensions illustrated below are for the standard equipment. Please refer to the separately
supplied drawings if your specifications are not standard.
1. NKF-341 (Installed on ship's bottom)
2. NKF-392C (Installed on ship's bottom)
(Unit: mm)
Mass: 22kg
(Unit: mm)
Mass: 41kg
φ135
φ55
φ190.7±3
25°
89 81 2
9
Cabtire cable
20mφ12.9
Flange JIS B 2222
（10K-32）
Cabtire cable
20mφ12.9
Lvaries between 23 and 38 mm
depending on the thickness of the hull.
φ260±1
φ300±8
φ135±4
φ190±1
φ220±4
75
170
±
4
95
（30）L
T （15）
1.7max.
T is thickness of the hull,
and L + T = 48.
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