U-1228 under Friedrich-Wilhelm Marienfeld surrendered in NH 17 May 1945, sunk 37nm NE of Provincetown Mass.

Patrol 70, U-1228,
Friedrich-Wilhelm Marienfeld, 3 days 15-17 May 1945.

Friedrich-Wilhelm Marienfeld,
who brought U-1228 on a short transit through New England waters of 3 days en
route to surrendering in Portsmouth, New Hampshire on the 17th of
May 1945. Photo courtesy of http://uboat.net/men/commanders/786.html
Oberleutnant zur See Friedrich-Wilhelm Marienfeld brought his command
U-1228 through New England waters from the 15th to the 17th
of May 1945 in order to surrender at the US Naval Base in Portsmouth, New

Wynn (Vol. 2, p.237) states
that U-1228 left Kristiansand Norway on the 14th of April and that
on the 11th of May she met with the US Navy destroyers USS Scott and
USS Sutton in a position 350 nautical miles east of Cape Race Newfoundland. UK
historian Derek Waller provides much more granular detail. According to Waller,
the signal to surrender was received by U-1228 on the 9th of May, at
which point the submarine was in the mid-Atlantic. Marienfeld initially motored
towards Newfoundland Canada, sending a signal to the Allies to that effect.

While en route to U-1228’s
position the US Navy destroyer escorts USS Sutton and USS Neal A. Scott
intercepted U-858, which was also surrendering, on the 10th of May.
They began to escort U-858 then peeled off to resume the search for U-1228.
They found their quarry on the 11th of May early in the afternoon.
It was too rough to effect a boarding party onto the U-boat, so each destroyer
escort took up position on either side of U-1228 and began motoring towards a
designated surrender point in Casco Bay Maine, near Portland.

The weather continued too
rough to board the sub on the morning of the 12
th (Waller cites “dense
fog, icebergs and heavy seas,”) but later in the day USS Neal A. Scott sent a
boarding party. Shortly afterwards USS Sutton broke away in order to intercept
another U-boat, U-234. So the Neal A. Scott and U-1228 continued towards Casco
Bay. On the 15
th of May another signal arrived aboard the Neal A.
Scott, ordering it to bypass Casco Bay and proceed directly to the Examination
Anchorage in Portsmouth, New Hampshire’s Lower Harbor. The Allied escort and
its former nemesis thus arrived at 6 AM on the 17
th of May in

U-1228 surrendering at Portsmouth, New Hampshire,
May 17 1945. Photo source https://en.wikipedia.org/wiki/German_submarine_U-1228

Friedrich-Wilhelm Marienfeld
was born in March 1920 and was thus 25 years of age when he surrendered. He
survived the war and lived until 1973 and the age of 53. A member of the Crew
of 1938, he began in 1940 with service aboard the destroyer Z-7 Hermann
Schoemann up to August 1940. He commanded the artillery lighter Adventura to
October and then joined U-boats. Marienfeld served as 2nd Watch Officer
of U-205 from May 1941 to April 1942.

Marienfeld commanded U-4
from June 1942 to January 1943 but went on no war patrols aboard her (Busch
& Roll). From December 1943 to the capitulation he commanded U-1228, during
which he sank a Canadian corvette, the HMCS Shawinigan (K 136) in the Cabot Strait,
Canada. All 91 officers and men aboard were killed (UBoat.net). Marienfeld
received no decorations.

U-1228 being torpedoed “Off
Provincetown” Cape Cod in February 1946 by USS Sirago. Photo source: http://www.navsource.org/archives/08/08485.htm

The United States government
officially took title to the submarine in August 1945 as a war prize. U-1228 was
sunk by the US Navy submarine USS Sirago (SS 485) on the 5th of
February 1946
37 nautical miles northeast of
Provincetown, Massachusetts (the tip of Cape Cod). The position is
42°32′N 69°37′W (Niestle).

Again UK historian Derek Waller provides
the kind of granular detail which only someone who has pored through deck logs
and correspondence on the topic can do. Like U-805, U-1228 was declared an “unallocated”
vessel and ordered by Allied agreement to be sunk by 15 February 1946. On the 4th
of February a submarine rescue vessel (ASR 12) named USS Penguin towed U-1228
out of the Portsmouth Navy Yard. That same day the US Navy submarine USS Sirago
(SS 485) departed the submarine base in New London, Connecticut, bound for
Provincetown, Massachusetts, on the tip of Cape Cod.

The USS Sirago arrived at Provincetown
Anchorage on the 4th and overnighted there. Early on the 5th
it headed into deeper water to the northeast in order to rendezvous with the
USS Penguin and its tow, U-1228. By 9:37 AM U-1228 was cast off from the
Penguin and ready to meet its fate. At 10:09 AM the Sirago fired its first
torpedo, which passed beneath the U-boat. A second projectile struck its quarry
by the stern, making U-1228 list to starboard. A third torpedo failed to strike
the target (again passing beneath it), however a fourth missile hit the German
boat amidships (see photo above), causing its immediate destruction. According
to Waller the location of U-1228’s ultimate resting place is
42°30′N 69°38′W (the author is indebted to Derek Waller
for these two paragraphs).


Busch, Rainer and Röll, Hans-Joachim, “German U-Boat
Commanders of World War II, A Biographical Dictionary,” Greenhill Books, London
and Naval Institute Press, Annapolis, MD, 1999
Helgasson, Guðmundur and Kolbicz, Rainer, www.uboat.net, 2015
Högel, Georg, “U-Boat Emblems of World War II 1939 – 1945,”
Schiffer Military History, Atglen, PA, US, 1999+
Kurowski, Franz, Knights of the Wehrmacht, Knight’s Cross
Holders of the U-Boat Service,” Schiffer Military/Aviation History, Atglen, PA,
US, 1995
Mason, Jerry, www.uboatarchive.net
– for the KTB or war diary of this patrol, 2015
Niestlé, Axel, “German U-Boat Losses During World War II –
Details of Destruction,” Naval Institute Press, Annapolis, MD, 1998

Waller, Derek, Private correspondence, November 2015