This would be my first ever patrol in a Type VII boat, my only other experiences in SH3 coming in Type II coastal boats. U45, the type VIIB assigned to us has three times the torpedoes, over twice the range, and almost twice the crew. She also has an 88mm deck gun which can be used against smaller unarmed targets. In all likelihood we would be returning to port due to excessive fatigue before we ran out of fuel or torpedoes. We could return early if we ran into a convoy, but one can only hope. I was mentally prepared for a sixty day cruise.
We departed on 01SEP39 from Wilhelmshaven and I decided to shake out the crew with a long cruise to our designated patrol grid of BE61, several hundred kilometers to the southwest of Ireland. There is a known shipping lane through that area, and although not a convoy route I hoped to bag at least one ship in my assigned grid. If not, we would be free to hunt where we chose after twenty four hours on station. I ordered a plotted course north near Norway and then west around the Faroes before turning south well west of Ireland and out of range of any patrolling aircraft. After nine days we reached our grid.
Submerged

Heavy Seas

After twenty four hours and without any sonar contacts I ordered us to move further north into BE37 where we picked up a sonar contact on 13SEP. She turned out to be a small tramp steamer, the SS Jussi, plying the known route. We dispatched her with one shot near the bow, causing her to flood and sink.
The tramp steamer SS Jussi succumbs to a bow shot.

I order a plot along the known merchant route east-northeast towards Cork, Ireland where, between 19SEP and 24SEP we sank five more ships for 6500 tonnes. A tugboat and a fishing trawler do not make very tantalizing targets, but they are flying British colors and they are all used in the war effort so they must be stopped. It livened the men up when we put down a coastal freighter, a small freighter, and a coastal tanker. Knowing that we sank ships carrying steel and crude oil did much to make us feel we were doing our duty.
The tug MV Abeille No. 5.


Survivors of the trawler MV Sindonis are given rations and water before we submerge.

The small freighter SS Varangnes goes down.

The coastal freighter SS Adrian engulfed in flames as the fuel tanks erupt.

The contacts dried up after 24SEP and I ordered a course around the west side of Ireland to a known convoy convergence zone. We had plenty of torpedoes and fuel left, but the men were starting to show signs of fatigue after 30 days.
Map of operations.

We picked up a contact on 01OCT in AM52. After several hours of setting up our position I raised the periscope to see the SS Astronomer, a 10,000 ton merchant. This was our moment. I set up a three shot salvo with a fourth torpedo ready in reserve. Three degree spread on the salvo. As she was so big I felt safe using magnetic detonators instead of impact so I set the depth of run to two or three feet under her keel. We let loose the fish and after thirty seconds or so sonar picked up a detonation. Far too early! The torpedo must have detonated prematurely. I quickly loosed the fourth torpedo being held in reserve. This one must not get away. I watched through the scope as the second torpedo detonated just under the stack where I estimated the engine room to be. The third torpedo missed, but the fourth hit and the Astronomer began to list and after a couple of hours sank beneath the waves.
The SS Astronomer takes a hit.

The men were tired, but with calm seas and 6 hours of darkness to shroud us I ordered our external reserves to be loaded. We submerged at dawn and resumed our patrol of the area. After no contacts were found for two days I ordered us home by the same northern route. We arrived in Wilhelmshaven on 10OCT40
Ted After Action Reports, Silent Hunter 3 & 4