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paulhager
08-22-2005, 08:33 AM
New career, starting 1939. Third patrol - late December. Sub is Type VII-B.

I spotted a convoy by routine hydrophone sweep, location was NNW of Ireland along standard convoy route. Weather was moderate seas, moderate fog - that made visibility just over 2000 meters at night. There were three escorts in what was apparently a triangle formation. I misjudged the convoy's course because when I got my first "ship spotted" message it was the lead escort, a Flower Corvette, heading straight for me. Range was a littler over 1500 meters. I dove the boat and went silent. The Flower was passing behind me at 500 meters and I hit it with my stern tube. I surfaced and started to reposition as the lead ships came into range. The convoy began a port turn with ships reducing speed to 4 kts. I fired single torps at a T3 and a troop transport at which point a V&W was sighted closing in on my position, bearing about 315. I dived and fired my remaining 2 torps in a 2 degree spread down the throat - one hit. I also got a hit on what turned out to be the T3 but it seemed unaffected.

With my crew frantically reloading torps I figured I'd make my escape on the surface and possibly even get off a farewell shot from my stern tube. The sonarman said that the other escort was at long range, medium speed, and closing so I figured that I could easily lose it in the poor visibility conditions. Upon surfacing I received the message that I was under attack! There was a star shell over my position and shell splashes near the boat. Crash Dive!!

I dove to 200 meters and moved away silently. The escort DC'ed but at medium range - clearly it had lost me. Eventually I surfaced and made another attack run on the convoy and bagged two troop transports. Again, the escort, which was on the other side of the convoy was all over me and I had to crash dive. Eventually I bagged the T3 which was lagging behind and that attracted the same escort!

Two things of interest. The first was the star shell. I assume that it was fired by the approaching V&W, which I dispatched. However, I would have thought it would have fallen into the sea by the time I surfaced. The other possibility was that a merchant spotted me and the other escort fired the starshell. However, in my subsequent attacks where the escort responded there was no star shell. In any case, in the first attack, with the star shell it could see me - I couldn't see it. Pretty amazing tactics.

paulhager
08-22-2005, 08:33 AM
New career, starting 1939. Third patrol - late December. Sub is Type VII-B.

I spotted a convoy by routine hydrophone sweep, location was NNW of Ireland along standard convoy route. Weather was moderate seas, moderate fog - that made visibility just over 2000 meters at night. There were three escorts in what was apparently a triangle formation. I misjudged the convoy's course because when I got my first "ship spotted" message it was the lead escort, a Flower Corvette, heading straight for me. Range was a littler over 1500 meters. I dove the boat and went silent. The Flower was passing behind me at 500 meters and I hit it with my stern tube. I surfaced and started to reposition as the lead ships came into range. The convoy began a port turn with ships reducing speed to 4 kts. I fired single torps at a T3 and a troop transport at which point a V&W was sighted closing in on my position, bearing about 315. I dived and fired my remaining 2 torps in a 2 degree spread down the throat - one hit. I also got a hit on what turned out to be the T3 but it seemed unaffected.

With my crew frantically reloading torps I figured I'd make my escape on the surface and possibly even get off a farewell shot from my stern tube. The sonarman said that the other escort was at long range, medium speed, and closing so I figured that I could easily lose it in the poor visibility conditions. Upon surfacing I received the message that I was under attack! There was a star shell over my position and shell splashes near the boat. Crash Dive!!

I dove to 200 meters and moved away silently. The escort DC'ed but at medium range - clearly it had lost me. Eventually I surfaced and made another attack run on the convoy and bagged two troop transports. Again, the escort, which was on the other side of the convoy was all over me and I had to crash dive. Eventually I bagged the T3 which was lagging behind and that attracted the same escort!

Two things of interest. The first was the star shell. I assume that it was fired by the approaching V&W, which I dispatched. However, I would have thought it would have fallen into the sea by the time I surfaced. The other possibility was that a merchant spotted me and the other escort fired the starshell. However, in my subsequent attacks where the escort responded there was no star shell. In any case, in the first attack, with the star shell it could see me - I couldn't see it. Pretty amazing tactics.

joeap
08-22-2005, 02:07 PM
Better post this at simhq.