Silent Running, 1 knot at 200m+ (or deepest you can go), 45 Degrees reverse track to your original attack course, and keep you back to the nearest escort (escort on bearing 180). Plenty of patience and don't be tempted to speed up, even when it looks like they've lost you... 4-6hrs should see you outa there. Have a peek in the scope first before you surface... you never know what you might find !!
