Figure 48: Flow At 10 Knots Around Dual T20 Without Fairings; Figure 49: Flow Around Dual T20 Without Fairings, Cross Section Of Symmetry Plane - Teledyne SeaBat T Series Operator's Manual

SYSTEM PERFORMANCE AND DATA TYPES
Figure 48 illustrates the flow at 10 knots around the T20 dual head without front fairings. The drag
on the pole, sonar heads, and bracket is in the region of 1550N. The same situation with front
fairings is shown in Figure 46.
Figure 49 is a cross section of the symmetry plane of the T20 dual head. Without the front fairings
the flow is still reasonable, but not as steady as with the fairings in front of the receivers. The
same situation with front fairings is shown in Figure 47.

Figure 49: Flow around Dual T20 without Fairings, Cross Section of Symmetry Plane

SeaBat T-Series Subsea Operator's Manual
Version 7

Figure 48: Flow at 10 knots around Dual T20 without Fairings

Page 70 January 31, 2019