U-9 - 4th War Patrol

Translation by Jerry Mason with help from Andi Forster

Departed	Date	Arrived	Date	Days at Sea
Wilhelmshaven	14 March 1940	Wilhelmshaven	20 March 1940	7

 

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Ships Hit

None

Note:  The positions in the table above and in the Google Earth patrol summary are derived from the KTB and in many cases do not match those set forth in authoritative references such as Jürgen Rohwer, Axis Submarine Successes of World War Two or the Uboat.net website.  The goal here is to present the picture relative to the U-boat and not the absolute position that the ship was attacked or sank.

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			K  r  i  e  g  s  t  a  g  e  b  u  c  h    "  U  9  "
			=o=o=o=o=o=o=o=o=o=o=o=o=o=o=o=o=
			Kommandant:  Oblt.z.S.    L  ü  t  h
			Beginning:        18.2.40.
			Concluding:     20.3.40.
				© U-boat Archive 2020 - all rights reserved

Click the flag to view the above page from the original German KTB

	- 1 -
		18.02.40	U-boat Base Wilhelmshaven
		19.02. - 04.03.40	West Werft Wilhelmshaven	Shipyard and dock period.
		05.03.40	Abeam the U-boat Base	Radio direction finder calibration.
			U-boat Base	Provisions loading.
		06.03.40	U-boat Base	Torpedo loading.
		12.00		Boat ready to put to sea.
		07. - 14.03.40	U-boat Base Wilhelmshaven	Lay in readiness.  Own training and preservation work.
		14.03.40
		14.25	U-boat Base	Ready for sea.
		15.25	Lock	Cast off.
		18.26	Lightship F	Abeam.  Continued transit on Route Blue.
		20.00	NNE 5, moonshine, Vis. very good
		15.03.40
		04.00	Route Blue	Transit on Route Blue.
		06.02	NW 3	Dived.
		12.00		Day's run:  Surfaced 124 nm, Submerged 0 nm
		19.45	Route Blue	Surfaced.
			W 4
		16.03.40
		04.00	AN 6335  Little Fischer Bank
			NW 7
		05.38	AN 3876	Dived, put the boat on the bottom (depth = 21 meters).  Nothing heard in operations area.
			NW 7, Sea 6-7, heavy Swell
		12.00		Day's run:  Surfaced 75 nm, Submerged 12 nm
		13.00		Proceeded at periscope depth, nothing heard or seen.  Put the boat on the bottom , depth = 24 meters.
		19.00		Proceeded at periscope depth, nothing observed.
		20.03	AN 3873	Surfaced, to the north at 8 knots back and forth in position, charged the battery with one diesel.
			ESE 3-4, moonshine, Vis. good 3000-4000 meters
		24.00	AN 3873
			SE 5, Vis. good
		17.03.40
		04.00	AN 3887
			ESE 4, Vis. good, Swell
		05.25	AN 3876	Dived, proceeded at periscope depth.
			Twilight
		07.00	AN 3879	Put the boat on the bottom, depth = 21 meters.

	Sun and Moon Data 14.03.40
	Sun and Moon Data 15.03.40
	Sun and Moon Data 16.03.40
	Sun and Moon Data 17.03.40

	- 2 -
		continued
		17.03.40
		12.00	AN 3879	Day's run:  Surfaced 65 nm, Submerged 7 nm
		11.30 - 13.00		Proceeded at periscope depth, nothing observed.
		13.00		Put the boat on the bottom, depth = 20 meters.
		18.40	AN 3879	Proceeded at periscope depth.
		20.09	AN 3879	Surfaced, proceeded to the east, to check ship's position by soundings on the Little Fischer Bank.
			SE 6-7, half overcast, Vis. good
		20.35		Radio Message from B.d.U.:  Form reconnaissance line from square AN 3786 - 3766 at 24.00 hours, course 315° speed 6 knots.  At 18 March at 07.00 hours break off and enter Wilhelmshaven on Route 2.
		20.40	AN 3879 upper-right	Course 270°, 2 x GF to square 3786, cannot run at higher speed because both diesels must charge.
		24.00	AN 3784 center-right	Boat is still 10 nm from its ordered position.
		18.03.40
		01.00	AN 3786	Reached ordered position, came to course 315° at 10 knots.
		03.00	AN 3757	Slowed to 6 knots, after reaching position in the reconnaissance line.
			SSE 7, overcast, Vis. moderate
		04.00	AN 3746
		06.00	AN 3742	Dived, proceeded at periscope depth.
			SSE 7, twilight, overcast
		07.00	AN 3742	Course for the entrance to Route 2.
			Broke off task
		12.00	AN 3772	Day's run:  Surfaced 94 nm, Submerged 24 nm
		19.55	SE 7, overcast	Surfaced, entered on the route.
		24.00	Route 2
			SE 6, rain, Vis. moderate
		19.03.40
		04.00	SE 4, rain
		06.00		Dived.
		12.30	12 nm in Route 2	At 4000 meters sighted a motor vessel, 200 tons on southerly course.  Netherlands flag and hull painting.
		16.10	25 nm in Route 2	Fishing cutter in sight, southerly course.
		18.30	Route 2	Surfaced, continued transit.
			SSE 5
		21.38	Route 2	English bomber overflew the boat coming from the durection of Sylt.
		21.58	Exit of Route 2	English aircraft passed the boat flying in the direction of Sylt.
		20.03.40	Deutsche Bucht
		04.00	SE 3	Transit to Wilhelmshaven.
		08.10	Lightship F	Anti-aircraft escort by Vorpostenboot.
		11.00	U-boat Base	Made fast.

	Sun and Moon Data 17.03.40
	Sun and Moon Data 18.03.40
	Sun and Moon Data 19.03.40
	Sun and Moon Data 20.03.40

 

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