[Pisces]

Try to turn in a direction that is directly away to the pinger (or when multiple, the nearest). Or where he will likely be at the next run. (follow him in his re-attack turn on the hydrophone) Minimize your reflection area for the echo. An angle of 30 degrees shows halve of your length.

Try not to turn too often in different directions. Turning slows you down, and going already quite slow you are pretty much a sitting duck in a turn.

Only use flank if you hear depthcharge splashes. And then back to creeping speed when the last depthcharge is about to explode. Then straighten the rudder to keep your speed up to creep away.

For creeping speed, reduce speed to get RPM around 50. Or under 1 knot. And keep silent running active all the time. Not just when it is on top of you.

Even if it is doing it's jousting runs, it may not know exactly where you are at present. It may just be working of an old sighting or echo of you for a while in the general area. Keep retreading away silently. Steel nerves!