Drag Simulation Results; Figure 40: T20 Sonar Head (Shallow) In Bracket With Optional Front Fairing; Figure 41: Flow At 10 Knots Around Single T20 (Shallow) With Fairing; Figure 42: Flow Around Single T20 (Shallow) With Fairing, Cross Section Of Symmetry Plane - Teledyne SeaBat T Series Operator's Manual

SYSTEM PERFORMANCE AND DATA TYPES

7.9.3 Drag Simulation Results

7.9.3.1 T20 Single Head Drag (shallow)
Figure 41 illustrates the flow at 10 knots around
the T20 single head (shallow) with front fairing.
The drag on the pole, sonar head, and bracket is
in the region of 490N. The same situation without
front fairing is shown in Figure 43.
Figure 42 is a cross section of the symmetry plane of the T20 single head (shallow). The front
fairing and bracket assure a steady water flow around the receiver and projector. The same
situation without front fairing is shown in Figure 44.

Figure 42: Flow around Single T20 (shallow) with Fairing, Cross Section of Symmetry Plane

SeaBat T-Series Subsea Operator's Manual
Version 7

Figure 41: Flow at 10 knots around Single T20 (shallow) with Fairing

Figure 40: T20 Sonar Head (shallow)
in Bracket with Optional Front Fairing
Page 67 January 31, 2019