Teledyne SeaBat T Series, Operator'S Manual, Page: 80 / 152

SYSTEM PERFORMANCE AND DATA TYPES
SeaBat T-Series Subsea Operator's Manual Page 68 January 31, 2019
Version 7
Figure 43 illustrates the flow at 10 knots around the T20 single head (shallow) without front
fairing. The drag on the pole, sonar head, and bracket is in the range of 650N. The same situation
with front fairing is shown in
Figure 41 .
Figure 43: Flow at 10 knots around Single T20 (shallow) without Fairing
Figure 44 is a cross section of the symmetry plane of the T20 single head (shallow). Without the
front fairing the flow is still reasonable, but not as steady as with the fairing in front of the receiver.
The same situation with front fairing is shown in
Figure 42 .
Figure 44: Flow around Single T20 (shallow) without Fairing, Cross Section of Symmetry Plane