[Aktungbby]

...in SH-V I would get directly astern of the large difficult-to-sink tankers, just a little beyond the eel's arming distance (300meters) and use a shallow-depth set steam eel on high-speed to cripple the tanker, continuing shoot other convenient targets in their sterns. Then, after the convoy had passed on, and having reloaded eels, I would surface, decks awash, still astern of the cripples at 1000+ meters and finish them off with HE shells with deck gun. This is to save eels as per Otto Kretschmer's famous maxim: "one ship, one eel". The acoustic eels should be in the stern tube and saved for pesky escorts. Care should be exercised when surfacing as some cargo vessels(Liberty ships in particular) have guns and will shoot back; hence remaining directly astern negates the use of the cripple's bow gun(not putting a round thru the bridge!!?) OTTO K. entered convoys from astern at night while surfaced, picking the most valuable targets supposedly snug in the middle of the formation. I'm too chicken, preferring to remain submerged while firing eels when submerged inside the convoy, rising only to use the deckgun at the safe distance....