HELP!

[Obersteuermann]

July 6th, 1943. Grid BE33.

You are the captain of U-964, a Type VIIC operating from Bergen. Two days ago, as a nice present for American Independence day, you sank a Bogue escort carrier NNW of Ireland. After reaching your assigned grid square you found a large convoy and moved to attack. However, three of the escorts heard you on their soundgear and now have your scent.

They're determined. Some of their cans have already damaged your boat: both your periscopes have been destroyed, along with the Wintergarten and your radio antenna, and the propellers have taken such a beating that you have to maintain at least 3 knots just to hold your depth - any slower and she sinks like a stone. Running at silent speed, she barely makes 1 knot through dead calm seas. The boat's good for about 150 metres but you dare not take her deeper than that.

There are three escorts. All of them have hedgehogs, but you suspect one - possibly two - has run out of cans to drop astern. They've been chasing you for about 12 hours now. Their convoy was making about 7-8 knots in the opposite direction to your current course but the escorts show no signs of returning to it. You're 1,350km from Brest, the nearest friendly port. You've ~80% battery life left and oxygen levels are about 75%.


Fellow Kaleuns, what would you do to lose the escorts?

(this situation may or may not be related to my present one )