1942

U-77. HMS Thrasher (Lt. H.S. Mackenzie, DSO, RN) fired three torpedoes at U-77 in position 32º48N, 33º36E, which all missed. Thrasher then surfaced to engage with gunfire, but U-77 dived and escaped.

U-457. At 2022hrs the boat was attacked with a depth charge by a floatplane after crash diving while shadowing convoy PQ-17 in approx. 75°57N, 27°50E. The explosion only caused minor damage, but destroyed the UZO optic. The aircraft was a SOC Seagull (VCS-7 USN, pilot Ens. Barclay) from USS Tuscaloosa on anti-submarine patrol around the First Cruiser Squadron (CS1) acting as distant cover for the convoy. (KTB U-457, War diary USS Tuscaloosa)

No U-boats were lost on this date, 4 July.

- For more information on U-boat losses check out our Fates section.

There were no men lost from U-boats on this date, 4 July.

- For more information on Men lost from U-boats check out this page.

The following men were born on this day:
Horst Slevogt (1922).

The following men died on this day:
Gerhard Franceschi (2009).

See the entire U-boat commander listing showing all U-boat commanders.
We might include more officers (Allied and Axis) at a later date.

This section shows the U-boat departures and arrivals from bases on this day of the year. Current country names shown with harbour names. Boats entering port display days at sea during that patrol.

1941

U-boats entering base:
To Bergen, Norway: U-137 (14 days)
To Lorient, France: U-101 (38 days)

1942

Sailed:
From Kiel, Germany: U-43, U-454, U-601
From Lorient, France: U-130, U-507
From St. Nazaire, France: U-71, U-552

U-boats entering base:
To Salamis, Greece: U-97 (20 days)

1943

Sailed:
From La Pallice: U-706
From St. Nazaire, France: U-267

U-boats entering base:
To Lorient, France: U-533 (2 days)
To Salamis, Greece: U-81 (29 days)

1944

Sailed:
From Kiel, Germany: U-475
From Kristiansand: U-677
From Lorient, France: U-518
From Stavanger, Norway: U-427, U-677
From Tromsö, Norway: U-354

U-boats entering base:
To Kiel, Germany: U-397 (7 days), U-975 (3 days), U-1192 (5 days)
To Lorient, France: U-853 (67 days)
To Marviken U-982 (2 days), U-999 (2 days)

Boats entering port on this day are not counted, but boats departing for patrol are. (+) indicates the boat was lost during this patrol.

1940

U-28, U-29, U-30, U-34, U-43, U-47, U-51, U-52, U-56, U-62, U-65, U-99, UA.
13 boats at sea.

1941

U-66, U-68, U-69, U-77, U-79, U-95, U-96, U-97, U-98, U-103, U-108, U-109, U-111, U-123, U-142, U-145, U-146, U-149, U-201, U-202, U-331, U-553, U-557, U-558, U-559, U-561, U-562, U-564, U-751, UA.
30 boats at sea.

1942

U-43, U-66, U-67, U-68, U-71, U-77, U-84, U-86, U-87, U-88, U-89, U-90 (+), U-107, U-116, U-126, U-128, U-129, U-130, U-132, U-134, U-135, U-136 (+), U-153 (+), U-154, U-156, U-159, U-160, U-161, U-166 (+), U-171 (+), U-172, U-173, U-201, U-202, U-203, U-251, U-255, U-332, U-334, U-355, U-372, U-373, U-375, U-376, U-379 (+), U-402, U-404, U-408, U-437, U-453, U-454, U-456, U-457, U-458, U-459, U-460, U-461, U-502 (+), U-504, U-505, U-507, U-508, U-509, U-552, U-561, U-562, U-571, U-572, U-575, U-576 (+), U-582, U-584, U-597, U-653, U-657, U-701 (+), U-703, U-704, U-752, U-754 (+).
80 boats at sea.

1943

U-18, U-19, U-23, U-66, U-67 (+), U-84 (+), U-134 (+), U-135 (+), U-154, U-155, U-159 (+), U-160 (+), U-168, U-170, U-172, U-177, U-178, U-181, U-183, U-185 (+), U-188, U-190, U-193, U-195, U-196, U-197 (+), U-198, U-199 (+), U-211, U-212, U-221, U-228, U-232 (+), U-257, U-267, U-271, U-277, U-302, U-306, U-333, U-336, U-341, U-358, U-359 (+), U-371, U-375, U-380, U-382, U-386, U-387, U-406, U-409 (+), U-415, U-420, U-435 (+), U-453, U-455, U-458, U-462, U-466, U-487 (+), U-488, U-505, U-508, U-509 (+), U-510, U-511, U-513 (+), U-514 (+), U-527 (+), U-532, U-535 (+), U-536, U-558 (+), U-565, U-571, U-572 (+), U-586, U-590 (+), U-591 (+), U-592, U-593, U-598 (+), U-600, U-603, U-604 (+), U-608, U-615 (+), U-617, U-618, U-622, U-634 (+), U-641, U-642, U-648, U-653, U-662 (+), U-666, U-667, U-669, U-706, U-713, U-732, U-759 (+), U-951 (+), U-953.
106 boats at sea.

1944

U-19, U-20, U-107, U-129, U-181, U-183, U-196, U-198 (+), U-218, U-233 (+), U-243 (+), U-247, U-307, U-309, U-315, U-344, U-347 (+), U-354, U-361 (+), U-365, U-390 (+), U-394, U-480, U-516, U-530, U-534, U-537, U-539, U-546, U-547, U-636, U-671, U-673, U-678 (+), U-711, U-716, U-737, U-742 (+), U-745, U-763, U-771, U-802, U-804, U-855 (+), U-857, U-858, U-859 (+), U-861, U-862, U-921, U-953, U-956, U-965, U-984, U-992, U-994, U-995, U-1001, U-1060, U-1061, U-1165, U-1222 (+).
62 boats at sea.

1945

U-530, U-977.
2 boats at sea.

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