I do not see any problem with displacement of a mark of a signal on BB Sonar.
The line very thin, therefore displacement not so is appreciable as on a thick line at SSN21.
You look time - give a picture at Trafalgar - 4 minutes after of a beginning of mission, and SSN21 - 2 minutes.
If you will look SSN21 also at 4 minutes - displacement of contact on BB sonars it will not be visible any more.
Trafalgar - has no WAA. Only modernized Trenchant carries WAA of the side antennas.
|