I've just finished my first game in a couple of months of "Sink the Bismarck", and managed a reasonable score, but in a rather odd way.
The first couple of turns passed with things going my way quite nicely, I managed to down a couple of Swordfish planes quite quickly, but then things started going weird.
The early success turned into air-gunnery disaster, when for turn after turn I hit nothing at all, and the first torpedo hit the ship very quickly.
Another couple of rounds later and the air was filled with Swordfish and I was having to point all of the guns into the water to fend off torps.
It was in the water that my luck was strongest. In the end I blew thirteen torpedos and only downed five aircraft! Most turns I was pointing two gunnery dice at a torpedo, other turns all of them. Only when there was a slight breather was I able to target an aircraft.
In the water I kept getting 6 after 6, but in the air... only despair!
When you target an aircraft in one of the outer air lanes it gives you a two thirds chance of targetting the right space, as the plane only has a one third chance of deviating. However this did not work for me at all in this game. The Swordfish just kept dodging.
Back in the water my luck was outrageously good. But luck is of course fickle, and my run of 6's couldn't hold. Eventually it broke and the last three torpedos all hit within two turns.
It all ended with a not-bad score of 70 points.