Position yourself ahead of convoy.
Silent running
speed 2 knots
Ordered Depth 14 meters.
Plot and track movement of lead escort. adjust your course to avoid the escort.
inside the convoy, select your targets.
Fire your torpedoes (quickly)
ahead flank
order depth 140 meters
reaching 80 meters reduce speed to 1 knot,
chances are 50-50 DDs will never find you.
If DD drops on top of you, go to ahead flank. 10 degrees port or starboard rudder.
when DCs begin exploding, back to 1 knot.after 2-3 hours , the DD will have lost you.
Your batteries will still be at over 75%.
