U-boat Archive - U-66 Messages

War Patrol

7 April1943 to 1 September 1943

Kapitänleutnant Friedrich Markworth

(Oberleutnant zur See Paul Frerks took over command on 7 August 1943 and brought U-66 home after Markworth was wounded during an attack by aircraft from USS Card)

Key and notes to translated message forms

With great appreciation to cryptology historian/researcher Mr. Ralph Erskine


	Date of message	US Navy Security Classification	(unknown)

German date/time of transmission/serial # (Serial # was allocated when signal was being sent by shore station. A different serial # was given for each radio circuit (eg. Series 1 or 4, etc))	Group count (number of four letter cipher groups in original German signal)	Cipher indicator group showing which cipher was being used ( eg. Triton (Shark) or Bertok) and the group for obtaining message setting (starting position of rotor for that message)	Allied name assigned to U-boat radio circuit Series’ 1, 2 3, etc. were allied designations for various U-boat radio circuits. The circuits included the Ubootsküstenschaltung (for the Bay of Biscay and the northern approaches to the North Atlantic ), Irland (for U-boats in the north and middle Atlantic ), Amerika (for those in the north western Atlantic, central Atlantic and South American coast), Afrika (for the Indian Ocean ), and Diana and Hubertus. From time to time they were expanded and renamed (eg. Amerika I and II ).

From:

To:

Message text

Text within (( )) are US Navy translator's notes

Offizier ( ) was a form of doubly-enciphered Enigma. Additional plugboard settings were used, which were generally valid for 10 days in a given month.

Disguised Naval grid square reference, disguised using ‘Adressbuch’ (later captured from U 505)

US Time of intercept (GMT)

Frequency

US time and date of decrypt at Op-20-G


	5 MAY 1943	HUSH SECRET

1211/5/122	109	PMIW STMV	SERIES 1

FROM:	COMSUBS

TO:	ALL SUBS ON SERIES 1

1. AS TEMPORARY ATTACK AREAS:

LANGE ((418)), SQUARE EQ 85 ((PROBABLY AK 35= 58.40N - 2910W 'B')).

CURIO, SQUARE EQ 84 ((PROBABLY AK34 = 59.35N - 2725W 'B'))

FERRO, SQUARE EQ 81 ((PROBABLY AK 31 = 60.25N - 2910W 'B'))

KUNTZE ((227)), SQUARE XI 38 ((PROBABLY AD 88 = 61.20N - 27.40W 'B'))

2. SCHRAMM ((109))

WALKERLING ((91))

POSER ((202))

GRAEF ((664))

MARKWORTH ((66))

WOLF ((465))

WINTERMEYER ((190))

ARE TO OCCUPY AT ECONOMICAL CRUISING SPEED PATROL LINE FROM JN 8238 ((PROBABLY BD 3238 = 50.45N - 27.15W)) TO QI 6843 ((PROBABLY BE 1843 = 48.51N - 23.05W)). IT IS INTENDED THAT THEY WILL LATER PROCEED NORTH AND JOIN SUBS IN PAREN 1 TO FORM PATROL LINE.


	TOI 1145Z	11068 KCS	0131/11


	6 MAY 1943	HUSH SECRET	RP V

0833/6/81	19	OGWV GADB	SERIES 0

FROM:	COMSUBS

TO:	ALL SUBS ON SERIES 0

HUNGERHAUSEN, MARKWORTH ((66), AND WOLF ((485))

SEND PASSAGE REPORT IMMEDIATELY.


	TOI 1222Z	15.66 KCS	0721/10


	7 MAY 1943	HUSH SECRET	GP JLN

0408/7/1	45	VHFF RCNL	( SERIES 0 )

FROM:

MARKWORTH ((66))

1. STARBOARD DIESEL IRON-TIE CYLINDER NO 78 BROKEN.

2. COMPLETED REPAIRS OF CRANK-WEB AND ((CRANKSHAFT)) BEARING TONIGHT.

3. WHAT IS PERMISSIBLE LOAD?

4. BE SQ ((46.05N - 16.45W 'B')).

D/F NO FIX APP-1 CASE 7/2/11 X


	TOI 1550Z	15.66 KCS	2208/9


	7 MAY 1943	HUSH SECRET	ML EJC

1117/7/187	56	ROYO WJNO	( SERIES 1 )

FROM:	COMSUBS

TO:	ALL SUBS ON SERIES 1

CONTRARY TO PRESENT ORDERS, NEW HEADING FOR LANGE (( )), CURIO, FERRO, KOCH ((382)), SCHRAMM ((109)), POSER ((202)), GRAEF (( )), WOLF ((465)), HUNGERSHAUSEN, WINTERMEYER ((190)), HOPMANN ((405)), MARKWORTH ((66)) AND KUNTZE ((227)) IS VD 80 ((AJ 30 = 57.45N - 40.00 W 'B')). NO REPORT ON ARRIVAL.


	0951Z	11068 KCS	1110/9


	7 MAY 1943	HUSH SECRET	ML EJC

1233/7/190	24	CKTZ TFFH	( SERIES 1 )

RUN THE DIESEL WITH THE BROKEN IRON TIE ONLY UP TO HALF SPEED. AVOID ROUGH AREAS.

*SCHWINGUNGSGEBIETE


	TOI 1049Z	11068 KCS	0426/22


	13 MAY 1943	HUSH SECRET	ML EJC

1837/13/861	50	IUPY LMGE	( SERIES 8)

1) MARKWORTH ((66)), U-129 ((BG)) ((WITT)), CHRISTOPHERSEN ((228)) REPORT WEATHER.

2) HOPMANN ((405)), PURKHOLD ((260)) TURN ON COASTAL CIRCUIT ON 14 MAY AT 0800B.

3) ACHILLES ((161)) REPORT SITUATION.

4) BARGESTEN ((521)) SEND PASSAGE REPORT.


	TOI 1719Z	12950 KCS	2140/14


	15 MAY 1943	HUSH SECRET	DF JLN

0120/15/136/768/888 42		DIUP YOAF	( SERIES 1, 7, & 8 )

1. WAECHTER ((223)), FORERSTER ((359)), TINSCHERT ((267)), DAHLHAUS ((694)) TURN ON COASTAL CIRCUIT MAY 15. 1000B, WINTERMEYER ((190)), MARKWORTH ((66)) ON AMERICA 2.

2. MARKWORTH REPORT WEATHER.


	TOI 2342	4070 KCS	0308/17


	16 MAY 1943	HUSH SECRET	GP JLN

1554/16/287	31	KAKU VWMG	( SERIES 2 )

GROUP DONAU 1 AND 2, ENTIRE GROUP 'ILLER', WITT ((129)) AND MARKWORTH ((66)) TURN ON HUBERTUS ON 17 MAY, 0000B.


	TOI 1729 Z	10510 KCS	0559/22


	16 MAY 1943	HUSH SECRET	ML EJC

2168/16/303		PXQX FZOC	( SERIES 3 )

1. BARGSTEN ((521)), MARKWORTH ((66)), WINTERMEYER ((190)), HEAD FOR SQUARE GF 37.

((PRESUMABLY CA 87 35.15N - 74.30W 'B' OFF CAPE HATTERAS))

SEE SERIAL NUMBER 33 OR 189, AS THE CASE MAY BE

2. FRANKE ((262)) REPORT RESULT AS SOON AS POSSIBLE.


	TOI 1930Z	9968 KCS


	17 MAY 1943	HUSH SECRET	GP JLN

1923/17/188/331/210/24/463/715/832		83 OVIX YBFS	( SERIES 0, 1, 2, 3, 4, 7, 8 )

1. DIERKSEN ((176)) REPORT SITUATION TONIGHT. U-182 ((CLAUSEN 1 (NIXO)) REPORT POSITION.

2. BY 0500B MARKWORTH ((66)) AND AUFFERMANN ((514)) SEND SHORT WEATHER, KREMSER ((393)) SEND RADIO SONDE.

3. CIRCUITS BEGINNING 18 MAY, 0800B ARE:

AMERICA-2 FOR KAMECKE ((119)) AND SCHNEEWIND ((511)), COASTAL FOR KREMSER, STRAETER ((614)), DEECKE ((584)), AUFFERMANN;

IRELAND FOR PRESSELL ((951)), MARBACH ((953)), ZIEHM ((232)), ROSSMANN ((273)), WULFF ((646)).


	TOI 1825Z	13565 KCS	0600/21


	19 MAY 1943	HUSH SECRET	EP V

0947/19/346	48	OKQX QKVG	( SERIES 3 )

1. BARGSTEN ((521)) AND UHLIG ((527)) TURN ON HUBERTUS IMMEDIATELY AS RADIO RELAYS FOR SUBS IN NORTH ATLANTIC.

2. WINTERMEIER ((190)), KAMECKE ((119)) AND ACHILLIES ((161)) AT 1600B TURN ON AMERICA 1.


	TOI 1028Z	13565 KCS	1655/19


	5 JUNE 1943	HUSH SECRET	GP JLN

1855/5/345	50	ZOAZ YVCL	( SERIES 3 )

BARGSTEN ((521)), MARKWORTH ((66)), WINTERMEYER ((190)) AND UHLIG ((527)) REPORT SITUATION OR POSITION AS SOON AS YOU HAVE BEEN OBSERVED. WE HAVE SUB SIGHTING REPORTS FROM NAV SQ DM 26 ((25.21N - 79.45W 'B')). ATTENTION IS CALLED TO COMMANDER'S HANDBOOK PAR 354.


	TOI 1731 Z	14540 KCS	0140/22


	12 JUNE 1943	HUSH SECRET	ML JPC

1758/12/344	22	XYIE BPOR	( SERIES 3 )

KIETZ ((126)), NISSEN ((105)), MARKWORTH ((66))

REPORT SITUATION OR, IF NO INFORMATION, POSITION.


	TOI 1630Z	14540 KCS	1035/14


	15 JUNE 1943	HUSH SECRET	EP JLN

1916/15/184/287/372/747		92 ZORE BHVG	( SERIES 1, 2, 3, 7 )

1. UPHOFF ((84)), CARLSEN ((732)), TROTHA ((306)) HEAD FOR SQ VL 7895 ((NO INFO)).

2. KAMECKE ((119)), OELRICH ((92)) TURN ON IRELAND CIRCUIT ON 16 JUNE, 0800B.

3. SCHREINER (( )), SCHROETELER ((667)), BARLEBEN (( )) REPORT SHORT WEATHER BY 0600B.

4. BARGSTEN ((521)), MARKWORTH ((66)) REPORT SITUATION OR POSITION IN CASE YOU HAVE BEEN OBSERVED. SEVERAL SIGHTING REPORTS FROM YOUR OPERATION AREA HAVE COME IN.

5. JOHANNSEN ((569)) REPORT POSITION.


	TOI 1859 Z	10310 KCS	1215/22


	16 JUNE 1943	HUSH SECRET	EP V

0303/16/376	66	DGTN LURU	( SERIES 3)

FROM:

MARKWORTH ((66))

1) ON 23 MAY CHASED A FREIGHTER AS FAR AS DE 81 ((29.00N - 51.40W 'B')) COURSE 120, SPEED 16.

2) ON 9 JUNE, MISSED ON 2 LARGE TANKERS, ON 10TH, SANK NEWLY CONSTRUCTED TANKER WITH MAGNETIC FUSE. SINCE THEN NOTHING. ALL ON CRUISE ABOUT 020, SPEED ((ABOUT)) 15. AIR PROTECTION DB 6289 ((31.15N - 79.10W 'B'))

(CONTINUED IN 404/16/377/70)

PAGE 1 OF 2 PAGES.


PAGE 2	16 JUNE 1943	HUSH SECRET	EP V

0303/16/376	66	DGTN LURU	( SERIES 3 )

D/F

31.30N 77.40W (L 16) CASE 16/7/01

TOI: 0207Z 6792 KCS

31.45N 77.40W (L 21) CASE 16/7/02

TOI: 0225Z 6782 KCS

33.30N 77.00W (V 24) CASE 16/7/05

NO FIX CASE 16/7/07

TOI: 0344Z 6792 KCS


	TOI 0519Z	9037 KCS	0830/22


	16 JUNE 1943	HUSH SECRET	EP V

0404/16/377/70	60	KGZL MCPC	( SERIES 0 & 3 )

CONTINUATION OF 303/16/376

3. CONSTANT AIR-PATROL, AIR-SHIP ((? I.E. BLIMP)), FLYING BOAT, FIGHTER-BOMBER, ALONG THE 200 METER LINE. RADAR SO FAR ONLY AT NIGHT ACROSS DB 30 ((33.30N - 79.20W 'C')).

4. 10 PLUS 8 ((TORPEDOES)), 130 CBM; HIGH PRESSURE WEATHER WITH THUNDERSTORMS: AM GOING TO EAST FOR PERIOD OF FULL MOON.*

D/F

29.30N 77.35W (U1-15) CASE 16/14/03

32.45N 77.00W (U1-24)

TOI: 0355Z 6792 KCS


	TOI 0401Z	6792 KCS	0845/22

*TEXT "FUER MEND" ASSUMED TO BE GARBLE FOR "MOND"


	25 JUNE 1943	HUSH SECRET	ML V

1201/25/314	20	ZUVK EDKO	( SERIES 3 )

1) WINTERMEIER ((190)) AND MARKWORTH ((66)):

FREE MANEUVER IN ENTIRE COASTAL AREA.

2) BARGESTEN (( )) REPORT POSITION.


	TOI 1026Z	14540 KCS	1415/3

Note: July decrypts were late (21 days’ delay for the message immediately below for example), mainly because new rotors (gamma and thin reflector C) were introduced on 1 July 1943, whose wiring had to be found by Bletchley Park.


	3 JULY 1943	TOP SECRET ULTRA	EM H

2128/3/322	22	ZFYJ UVBR	( SERIES 3 )

TO:	MARKWORTH ((66))

REPORT SITUATION OR POSITION.


		0650/24 APR '44


	4 JULY 1943	TOP SECRET ULTRA	MC JLN

0437/4/331	75	OLZO OXKF	( SERIES 3 )

"SANK TANKER IN DB 62 ((31.39N - 79.18W 'B')), SPEED 15, COURSE 020.

A/C AS BEFORE, SLIGHT SURFACE PATROL.

4 PLUS 8, 88 CBM, FOOD FOR 20 DAYS

AM I TO BE PROVISIONED?

MISSING SERIAL NOS: 99/24; 48, 49, 56, 79, 90.

DC-50 ((30.45N - 72.06W 'C'))."


		1123/24 APR '44


	- - CORRECTED COPY - -

	4 JULY 1943	TOP SECRET ULTRA	MC JLN

0829/4/332	62	JNOU IFNO	( SERIES 3 )

TO:	MARKWORTH ((66))

REPEAT ((OF 1143/28/6/1943. PREV TRANSLATED.))

	EJC
	1920/24/4/44 RP


	- - CORRECTED COPY - -

	4 JULY 1943	TOP SECRET ULTRA	MC JLN

0847/4/333	132	TSBX XBAY	( SERIES 3 )

CONTINUATION OF SER NO 346 FOR MARKWORTH ((66)).

((PREVIOUSLY TRANSLATED IN 1245/27/6/1943. HOWEVER, AT END OF PARA 2 THIS MESSAGE ADDS: 'FREQUENCY CHANGE DAILY AT 0830B'. PARA 3 READS: 'KEYING OF NAVAL COMMUNICATIONS OFFICER BERNAU L B A 1.))

	EJC
	1810/24 RP


	4 JULY 1943	TOP SECRET ULTRA	MC JLN

1110/4/334	136	TVRY DEOC	( SERIES 3 )

TO:	MARKWORTH ((66))

CONTINUATION OF SER NO 333. ((REPEATED FOR MARKWORTH. CONTENTS PREVIOUSLY TRANSLATED IN 1327/27/6/1944)).


		1100/24 APR '44


	4 JULY 1943	TOP SECRET ULTRA	MC H

1400/4/151/339/732		103 OENJ OHBJ	SERIES 1, 3, 7

1) BORM ((592)) MAKE SUGGESTION, AS ORDERED, FOR R/V.

2) MARKWORTH ((66)): REPORTED PROVISION SUPPLY OF 20 DAYS APPEARS VERY SMALL. IN CASE YOU CAN CONTINUE OPERATING IN PRESENT ATTACK AREA FOR ANOTHER 10-14 DAYS, REFUELING AND PROVISIOING PLANNED IN 60 OF LARGE SQ WEST OF DISGUISED SQ GP ((POSSIBLY CE; CD 60: 38.51N - 37.18W 'C')). IN CASE NEGATIVE, RETURN WHEN PROVISIONS NECESSITATE ANAD YOU WILL RECEIVE MORE PROVISIONS APPROXIMATELY IN HEADING NAMED. REPORT AGAIN.


		0852/24 APR.


	6 JULY 1943	HUSH SECRET	EP H

0528/6/367	76	YBVD YNKR	SERIES 3

FROM:

MARKWORTH ((66))

DAY-ATTACK TYPE - LAGSIN - ON COURSE 150 GENTLY RAMMED*. 4 PLUS 6 PLUS 2 OUT OF ORDER, 84 CBM. EQUIPMENT WAS FOR 13 WEEKS. RETURN 16TH. RADAR ON 26TH 140 CM HORIZONTAL WEAKLY AUDIBLE VERY DEEP TONE, STRONG REACTION IN MAGIC EYE. NAV SQ DC 8120 ((26.15N - 73.08W 'A')). HIGH PRESSURE.

D/F

28.45N 73.35W (N-17) CASE 6/7/05

TOI 0528Z 6792 KCS


	TOI 0430 Z	6792 KCS	2200/11/8

*WORDS GIVEN IN ORDER OF TEXT. PRESUMABLY SUB, AND NOT "LAGSIN" WAS ATTACKED AND RAMMED.


	9 JULY 1943	TOP SECRET ULTRA	MR V

0606/3/?	72	BUUS ZHBV	( SERIES ? )

FROM:

MARKWORTH ((66))

ON 2/7 SANK TANKER IN DB 6296 ((31.21N - 78.54W 'A')) COURSE 020, SPEED 15. DEFENCE AS BEFORE. 4 ((4 GARBLED)) 8 ((8 GARBLED)) CBM, 3 ((6 GARBLED)) DAYS' PROVISIONS. AM I TO BE PROVISIONED? BER NO 8 48/16, 9 ((6 GARBLED)), 24, 48, 49, 56, 79, 10, 9 ((4 GARBLED)) ARE MISSING. AM GOING TO RE-LOAD ((TORPEDOES)).

D/F

32.00N - 77.00W (V-10) CASE 3/7/05X

TOI 0527Z 6792 KCS


			1505/18/4/44


	9 JULY 1943	HUSH SECRET	GP JLN

0831/9/486/255/20/170/716/839/322		33 OMLC IQLU	( SERIES 4,2,0,1,7,8,3 )

TO:	MARKWORTH ((66))

ON 8 JULY THE FUEHRER BESTOWED UPON YOU THE KNIGHT'S CROSS, HEARTIEST CONGRATULATIONS.

COMINCH AND COMSUBS.


	TOI 1437 Z	13570 KCS	0655/31/8


	13 JULY 1943	HUSH SECRET	MA EHB

0501/13/184	115	MQSY MFVT	( SERIES 1 )

TO:	SIEGMANN ((230))

CONTENTS OF SER. NO. 29*

((PREVIOUSLY TRANSLATED IN REPETITION FOR MARKWORTH ((66))

0459/20/321 JULY.))

*1103/9/29/174/257/325 ETC., 9 JULY, NOT YET READ.


	TOI 0349Z	5100 KCS	1440/26


	13 JULY 1943	HUSH SECRET	RP WA

2200/13/307	39	ISRS STBJ	SERIES 3

TO:	MARKWORTH ((66))

ON AWARDING OF THE KNIGHT'S CROSS I WISH TO EXPRESS TO YOU AND YOUR BRAVE CREW MY HEARY CONGRATULATIONS.

RAEDER, GRAND ADMIRAL


	TOI 0142 Z	6992 KCS	0402/2


	16 JULY 1943	HUSH SECRET	EP H

2318/16/364	24	IMSY JXBB	SERIES 3

FROM:	S. O. FLOTILLA

TO:	U-66 ((MARKWORTH)) FOR LT(JG)
	DR SCHUETZE ((KURT))

CONGRATULATIONS.


	TOI 2154	6792 KCS	1715/21


	20 JULY 1943	HUSH SECRET	EP H

0234/20/318	93	QJTY XQOR	SERIES 3

FROM:

MARKWORTH ((66))

FROM NAV SQ DA 67 TO 62 ((29.50N 91.20W TO 31.40N 90.05W 'B'; BOTH POSITIONS AND COURSE ON LAND. TEXT CLEAR.)) NOTHING ONLY MODERATE EAST-WEST SEA AIRCRAFT. LACKING SER NOS: 348, 349 OF 5TH; 307 OF 8TH; 325, 326 OF 9TH; 348 OF 10TH; 366, 367 OF 11TH; 368 OF 17TH. 165 CBM. RETURNING. NAV SQ DB 73 ((28.55N 85.20W 'B')). REQUEST METOX, SINCE THE REPAIR BY MEANS ON BOARD HAS VERY MUCH REDUCED ITS SENSITIVITY. HIGH PRESSURE.

D/F

29.20N 72.30W (V-25) CASE 20/7/02

TOI 0116Z 6792 KCS


	TOI 0119Z	6792 KCS	0400/29


	20 JULY 1943	HUSH SECRET	DF Q

0234/20/318	93	QJTY XQOR	SERIES 3

ADDITION

((MARKWORTH HAS GIVEN HIS NAVAL SQUARES WRONG. "DA 67 TO 62" SHOULD BE "DB 67 TO 62" - - 29.30N 81.00W TO 32.00N 77.30W, AND AGAIN "DB 73" SHOULD BE "DC 73" - - 29.00N 74.30W 'B'. THIS IS BORNE OUT BY D/F ON 0234/20/318 AND 0353/20/320.))

CORRECTION

((FOR "165 CBM" READ "65 CBM".))


		0903/29


	20 JULY 1943	HUSH SECRET	EP H

REVISED COPY *		DF

0353/20/320	27	JBWH HXYG	SERIES 3

((FROM:

MARKWORTH - U-66))

SETTING FOR MSG 318 IS JBJC

D/F

29.20N 73.00W (V-35) CASE 20/7/05 X

TOI 0207


	TOI 0213 Z	6792 KCS	0155/29

* ((IN THE LIGHT OF 0234/20/318))


	20 JULY 1943	HUSH SECRET	RP JPC

0405/20/323	38	BDVG BHSK	SERIES 3

TO:	MARKWORTH ((66))

SERIAL NUMBERS 325 AND 326, 9 JULY ARE BEING RE-ENCIPHERED AND REPEATED. ALL OTHER MISSING SERIAL NUMBERS ARE TAKEN CARE OF AS FAR AS YOU ARE CONCERNED.


	TOI 0403 Z	5412 KCS	1750/28


	20 JULY 1943	HUSH SECRET	RP JPC/V

0459/20/321	107	PHWF HDVA	SERIES 3

FROM:	CONTROL

TO:	MARKWORTH ((66))

CONTENT OF SERIAL NUMBER 325, 9 JULY. THE FILLING IN OF THE FOLLOWING GROUPS IN THE SHORT-SIGNAL BOOK OF 1941 IS ORDERED:

UNNG = REQUEST CONTACT BUOY* (FUEBO).

UNOH = WATCH FOR CONTACT BUOY AHEAD OF CONVOY.

UNPI = WATCH FOR CONTACT BUOY ASTERN OF CONVOY.

UNQJ = WATCH FOR CONTACT BUOY TO PORT OF CONVOY.

UNRK = WATCH FOR CONTACT BUOY TO STARBOARD OF CONVOY.


	TOI 0405 Z	6792 KCS	1932/28

* FUEHLUNGSHALTER - SIGNALBOJE. LITERALLY "SHADOWER'S SIGNAL BUOY.


	20 JULY 1943	HUSH SECRET	RP V

0534/20/20	38	EAHP VVQI	SERIES 0

REPORTED BY MARKWORTH ((66)) ON AMERICA D:

NAV SQ DB 73 ((28.55N - 85.20W (B) )). AM RETURNING. REQUEST METOX, AS SENSITIVITIES ((OF INSTRUMENT)) HAS BEEN GREATLY REDUCED AS A RESULT OF REPAIRS MADE WITH MEANS AVAILABLE ON BOARD.


	TOI 0405 Z	4412 KCS	2040/28


	20 JULY 1943	HUSH SECRET	DF Q

0534/20/20	38	EAHP VVQI	SERIES 0

ADDITION

(("NAV SQ DB 73" HERE IS A REPETITION OF AN ERROR MADE BY MARKWORTH IN 0234/20/318. SHOULD BE "DC 73" - - 29.00N 74.30W 'B'))


		0902/29


	20 JULY 1943	HUSH SECRET	GP JLN

2032/20/355	18	HIMR NGFM	( SERIES 3 )

TO:	MARKWORTH ((66))

AFTER REFUELING RETURN TO KIEL IS PLANNED.


	TOI 1854 Z	12225 KCS	0300/1/9


	20 JULY 1943	HUSH SECRET	GP JLN

2110/20/336	19	LEEO VNJP	( SERIES 3 )

TO:	MARKWORTH ((66))

SEND WEATHER REPORT DURING NIGHT OF 20 JULY.


	TOI 1920/Z	12225 KCS	0315/1/9


	22 JULY 1943	HUSH SECRET	EP JPC

1907/22/374/134	31	FUGK SGXE	SERIES 1 & 3

1. AT 0800B, 23 JULY, FENN ((445)) TUNE IN ON AMERICA II, KOEPPE ((613)) ON AMERICA I.

2. MARKWORTH ((66)) REPORT WEATHER.


	TOI 1742Z	12225 KCS	2240/10/8


	23 JULY 1943	HUSH SECRET	EP EJC

0052/23/383	71	QPIU VCEJ	SERIES 3

FROM:

MARKWORTH ((66))

USA TANKER, SPEED 16, COURSE 170 PURSUED TO ((NS)) DN 36 ((25.20N - 69.00W)). TWO HITS IN FIRST ATTACK. AT DUSK A MISS OF 3 ((AND)) WILD ARTILLERY SHOOTING. ESCAPED WITH INCREASING LIST. 2 PLUS 2 PLUS 2 NOT CLEAR, 56 CBM, SE 2, SEA 2, 19 MB, C 5, GOOD VISIBILITY.

D/F

24.45N 69.30W (V-23) CASE 23/7/01

TOI 0016Z 6792 KCS


	TOI 0025Z	6792 KCS	1915/10/8


	27 JULY 1943	HUSH SECRET	EP EJC

1917/27/204/113/364/29		69 EJJE HXQF	SERIES 0, 1, 2, 3

1) KOEPPE ((613)) SEND WEATHER AT ONCE.

2) KUMMETAT ((572)), DAHLHAUS ((634)) REPORT SITUATION, WILAMOWITZ ((459)) HIS POSITION.

3) MARKWORTH ((66)) CRUISE VIA NAV SQ 50 ((CD 50 = 38.51N - 40.54W 'C')) OF THE LARGE SQ WEST OF DISGUISED SQ XP ((CE)). PROVISIONING FROM NEUMANN ((117)) IS PLANNED IN ABOUT THIS AREA.

4) NEUMANN HEAD FOR SQ MENTIONED.


	TOI 1956Z	10408 KCS	0935/2


	31 JULY 1943	HUSH SECRET	GP EJC

1932/31/345/29	37	CRWD TZNI	( SERIES 3, 0 )

1) KUPPISCH (( )) TURN ON IRELAND BEGINNING 1 AUG 0800B.

2) MARKWORTH ((66)) CONTINUE CRUISE TO SQ 66 ((PROBABLY CD 66 = 38.51N - 36.06W 'C')) OF THE LARGE SQ WEST OF DISQUISED SQ PD ((PROBABLY CE - 34.48N TO 42.54N - 24.42W TO 35.30W)).


	TOI 1830 Z	14540 KCS	1235/1-AUG


	1 AUGUST 1943	HUSH SECRET	GP EJC

1135/1/176	56	RQAO LMBU	( SERIES 1)

BEGINNING 3 AUGUST AT 2000B MARKWORTH ((66)) WILL PROVISION FROM NEUMANN ((117)) IN SQ 6755 ((PROBABLY CD 6755 = 37.57N - 38.30W)) OF THE LARGE SQ WEST OF DISGUISED SQ AY ((PROBABLY CE = 34.48N TO 42.54N - 24.42W TO 35.30W)) ((FOR)) ECONOMICAL RETURN TO BERGEN. AFTER EXECUTION MARKWORTH REPORT AFFIRMATIVE, NEUNAMM WAIT IN THAT AREA.


	TOI 1006 Z	10310 KCS	1320/1


	1 AUGUST 1943	HUSH SECRET	RP JPC

2117/1/180/369	54	NFNR DKOR	SERIES 3

1. NEW OBJECTIVE FOR HERTIN ((647)) SQ 50 ((AK 50 = 55.05N - 33.15W 'C')), FOR SCHMANDT ((489)) SQ 97 ((AK 97 = 51.25N - 30.15W 'B')). BOTH LH NORTH SQ ((AK))

2. FRIEDRICH ((759)) REPORT SITUATION TONIGHT.

3. MARKWORTH ((66)) TUNE IN ON IRELAND, STAHL ((648)) TUNE IN ON COASTAL BEGINNING 2 AUGUST.


	TOI 1947 Z	10310 KCS	0620/21


	2 AUGUST 1943	HUSH SECRET	GP
BETA TJD DEAB	DEN
0005/2/368/182			( SERIES 3 & 1 )

FROM:

U-66 ((MARKWORTH)) (EXT)

WILL BE UNABLE TO CARRY OUT R/V OR PROVISIONING UNTIL 2-3 DAYS LATER THAN PLANNED.

D/F

35.00N - 50.00W 14 BNGS CASE 1/7/15 X

TOI 2204 Z 6792 KCS


	TOI 2205 Z	14540 KCS	1425/21


	2 AUGUST 1943	HUSH SECRET	ML JPC

1850/2/382/191/885	65	NUXX OKOS	(SERIES 3,1,8)

1. TILLESSEN ((516)) BEGIN RETURN.

2. FENN ((445)) TAKE AS ATTACK AREA NAV SQ EU 70 ((2⁰ 24'N TO COAST 09.06 TO 11.48W)).

3. NEUMANN ((117)) WAIT FOR MARKWORTH ((66)) NEAR R/V. GO TO R/V AT TIME ANNOUNCED.

4. TROTHA ((306)), PIENING ((155)) BEGINNING 0800B, 2 AUGUST TUNE IN ON COASTAL.


	TOI 1811Z	12226 KCS	2400/28


	4 AUGUST 1943	HUSH SECRET	ML EJC

0132/4/395/33/107	69	BZET URII	(SERIES 3, 0, 1)

FROM:

MARKWORTH ((66))

ATTACKED BY 2 PURSUIT PLANES OUT OF THE SUN AT 2130B. BOMBS AND GUN FIRE. HEAVY CASUALTIES AMONG PERSONNEL. COMMANDING OFFICER HAS SHOT LODGED IN ABDOMEN. LIMITED ABILITY TO DIVE. SHALL I TRANSFER THE BADLY WOUNDED PETTY OFFICER 2ND CLASS PFAFF )(TO THE )) AZORES? MY POSITION IS NAV SQ CD 8298 ((36.39N - 40.30W)).

D/F

38.00N - 38.00W (L-37) CASE 4/7/01 X

TOI 0021Z 6792 KCS


	TOI 0038Z	6792 KCS	0905/16


	4 AUGUST 1943	HUSH SECRET	GP JLN

0432/4/109	41	IMBN QZNR	( SERIES 1 )

TO:	MARKWORTH ((66)) AND NEUMANN ((117))

NEW R/V BEGINNING THIS EVENING 2000B IN NAV SQ CD 5565 ((38.51N - 40.30W)). NEUMANN HAS PHYSICIAN ON BOARD. FURTHER ((ORDERS)) TO FOLLOW. TAKE CARE.


	TOI ?	5100 KCS	0746/23/9


	4 AUGUST 1943	HUSH SECRET	ML EJC

0513/4/436/34/110/204/397/801		70 RQLI NTRL	(SERIES 4, 0, 1, 2, 3, 8)

MARKWORTH ((66)) REPORTS BY RADIO MESSAGE ON AMERICA D:

((REMAINDER SUBSTANTIALLY SAME AS 0132/4/395)).


	TOI 0439Z	4791 KCS	0900/16


	4 AUGUST 1943	HUSH SECRET	EP EJC

1551/4/121	51	EYAO ZSBT	SERIES 1

1) NEUMANN ((117)) DELIVER METOX AND, IF AT ALL POSSIBLE, REPLACEMENT PERSONNEL TO MARKWORTH ((66)).

2) MARKWORTH REPORT IN CASE RETURN DOES NOT SEEM POSSIBLE BECAUSE OF CONDITION OF COMMANDING OFFICER AND LARGE NUMBER OF INCAPACITATED PERSONNEL.


	TOI 0042Z	5100 KCS	0140/16


	6 AUGUST 1943	HUSH SECRET	RP H

0023/6/143/80	96	FFHR ODZS	SERIES 0 AND 1

FROM:

MARKWORTH ((66))

1. DID NOT MEET NEUMANN ((117)). PROCEEDING EASTWARD. SUGGEST R/V TODAY 1200B ((PROBABLY IN CD)) 6464 ((38.51N - 38.14W)).

2. OBERLEUTNANT SCHUETZE AND SEAMAN 2 CL SITSCH HAVE FALLEN IN BATTLE. MEDICAL AID URGENTLY NEEDED FOR CAPTAIN FOR PETTY OFFICER PFAFF, AND 4 OTHER MAN. SUBMERGED IN DAYTIME SINCE ONLY WARRENT QUARTERMASTER IS AVAILABLE. REQUEST INSTRUCTIONS.

3. 56 CBM, 2 DAYS ((PROVISIONS)). ALMOST ALL FUEL TANKS AND BALLAST TANKS ARE LEAKING.

D/F

42.30N - 33.00W (L-38) CASE 6/3/02


	TOI 2321Z	5100 KCS	1732/14


	6 AUGUST 1943	HUSH SECRET	RP JPC

0535/6/146/236	64	VSQM ZKRB	SERIES 1 AND 2

NEW R/V FOR MARKWORTH ((66)) AND NEUMANN ((117)) IS NAV SQ CD 6464 ((38.51N - 38.14W)). NEUMANN REPORT TIME OF ARRIVAL AT ONCE. BLUM ((760)) HEAD FOR THE ABOVE-MENTIONED SQ LIKEWISE, IN CONTRADICTION TO EARLIER ORDER. MARKWORTH REPORT WHAT IS NEEDED FOR TRIP HOME.


	TOI 1023Z	15.22 KCS	1750/14


	6 AUGUST 1943	HUSH SECRET	RP H

1025/6/148	34	SJVX UTGW	SERIES 1
((1015 LOG))

OBERLEUTNANT FRERKS OF U-117 ((NEUMANN)) WILL TRANSFER TO U-66 ((MARKWORTH)) AS DEPUTY CAPTAIN, OR, AS THE CASE MAY BE, AS EXECUTIVE OFFICER.


	TOI 0100 Z	15.22 KCS	1724/14


	7 AUGUST 1943	HUSH SECRET	RP EHB

1925/7/373/12/169	91	ECFS VYEA	SERIES 0, 1 AND 3

1) AFTER COMPLETING THE FUEL DELIVERY AND MEDICAL ASSISTANCE FOR MARKWORTH ((66)), AND NEUMANN ((117)) WILL HEAD FOR SQ 62 ((DF 62 = 31.39N - 36.06W 'B')) OF THE LARGE SQ WEST OF WP ((WP PROBABLY DG)).

2) ALL RETURNING SUBS WHICH NEED REFUELING, CRUISE IN THE DIRECTION OF THE SQ NEUMANN IS HEADING FOR. IN AN AREA OF 400 MILES ROUND THIS SQ, RADIO SILENCE IS ORDERED FOR ALL SUBS EXCEPT IF MAKING REPORTS IMPORTANT FOR TACTICS.


	TOI 2300 Z	6792 KCS	0330/23


	8 AUGUST 1943	HUSH SECRET	RP JPC

0017/8/174	57	IEWM YEMH	SERIES 1 AND 3

FROM:

MARKWORTH ((66))

AT 1153B DURING REPROVISIONING ATTACKED WITHOUT SUCCESS BY CARRIER PLANE. PROPOSE NEW R/V, AT 1200B, CD 3483 ((41.21N - 38.22W)). I REQUIRE 35 CBM MORE, 15 DAYS, 2 SEAMEN, AM RETAINING DOCTOR ON BOARD.

D/F

39.45N - 39.30W (L-50) CASE 7/7/15

TOI 2330/ Z 5412 KCS


	TOI 0034 Z	6792 KCS	0630/22


	8 AUGUST 1943	HUSH SECRET	RP JPC

0259/8/175/265/379	52	ZZTL WDCG	SERIES 1, 2 AND 3

TO:	NEUMANN ((117)) AND MARKWORTH ((66))

NEW R/V, AS PROPOSED, BEGINNING 1200B, 8 AUGUST, NAV SQ CD 3483 ((41.21N - 38.22W)). AFTER PROVISIONING NEUMANN HEAD FOR SQ ((DF)) 62 ((31.40N - 38.05W 'B')) OF THE LARGE SQ WEST OF WP ((DG)) AS ORDERED.


	TOI 0121 Z	5100 KCS	0708/22


	9 AUGUST 1943	HUSH SECRET	ML V

1106/9/282/191/394 137		MQRU GDUA	SERIES 2, 1, 3

1) NEW R/V FOR GROUP GRAEF ((654)), FRANKE ((262)) BLUM ((760)) IS NAV SQ 2455 OF THE LARGE SQ WEST OF DISGUISED SQ WU. ((WU = CD 2455 = 41.33N - 42.06W)). MARKWORTH ((66)) AND NEUMANN ((117)), IF REFUELING HAS NOT ALREADY BEEN CARRIED OUT, TRANSFER FUEL IN SQ WU 4555 ((CE 4555 = 38.51N - 33.42W)).

2) CONTRARY TO PREVIOUS ORDER, FRANKE DELIVER FUEL TO GRAEF AND BLUM; AT THE SAME TIME GIVE PLENTIFUL PROVISIONS, ESPECIALLY TO GRAEF. THEN FRANKE BEGIN RETURN. BLUM PROCEED WEST, GRAEF WAIT.

3) IN ABOUT 10 DAYS GRAEF WILL RECEIVE ORDER FOR R/V WITH U-161 ((ACHILLES)) FOR THE PURPOSE OF TAKING ON MAINS UNIT FOR MULTIPLE HYDROPHONE GEAR.


	TOI 1033Z	12260 KCS	2205/21


	10 AUGUST 1943	HUSH SECRET	RP V

0432/10/304/107	73	PYMK GMLB	SERIES 1 AND 3

FROM:

MARKWORTH ((66))

AT R/V POSITION FORCED UNDERWATER BY PURSUIT DESTROYER* AND A/C. IMPOSSIBLE TO PROCEED NORTH BECAUSE OF CONDITION OF SUB. SUGGEST AROZ ((BAY OF AROSA SPAIN)) UNTIL A MORE FAVORABLE MOMENT. DOCTOR CONSIDERS PROMPT REMOVAL OF COMMANDING OFFICER AND PETTY OFFICER ((FAENRICH)) URGENT. 25 CBM. 13 DAYS. NAV SQ CE 1439 ((41.45N - 34.22W)).

D/F

42.45N - 33.45W (L-16) CASE 10/7/02


	TOI 0021 Z	6792 KCS	2120/17

* LIT TRANS OF "JAGD-ZERSTOERER", I.E. ?DESTROYER ESCORT


	10 AUGUST 1943	HUSH SECRET	EP EHB

0720/10/109/296/305 57		OEQU FJMB	SERIES 1, 2, 3

TO:	MARKWORTH (66))

OFFIZIER F

FIRST OF ALL GO TO R/V ORDERED WITH NEUMANN ((117)) IN SQ US 4555 ((PROBABLY CE 4555 = 38.51N - 33.42W)) AND CARRY OUT PROVISIONING. NEWMANN IS URGENTLY NEEDED FOR FURTHER PROVISIONING.

COMPOSITE MESSAGE 0335/19


	10 AUGUST 1943	HUSH SECRET	GP EJC

1302/10/115	118	XOAQ YKUV	( SERIES 1 )

TO:	MARKWORTH ((66))

OFFIZIER A

1) REFUEL FOR RETURN TO KALS ((COMMANDER , ACCORDING TO LAST REPORTS, OF 2ND U-FLOTILLA AT LORIENT)).

2) CALL AT AROZ ((PROBABLY AROSA BAY, NORTH OF VIGO)) ONLY IF ABSOLUTELY NECESSARY FOR REPAIRS OR TRANSFER OF WOUNDED, AND THEN ONLY FOR ONE NIGHT. A LONGER STAY IS NOT POSSIBLE, BOTH PRACTICALLY AND BECAUSE OF ENEMY REACTION.

3) DIRECT RETURN MORE SUITABLE. HEAD FOR ABOUT SQ UE 2230 ((PROBABLY CG 2230 = 42.45N - 09.18W 'A')). RETURN CLOSE TO SHORE TO AVOID ORTUNG. AIRCRAFT AND TORPEDO BOAT ESCORT IS PLANNED. AFTER COMPLETION OF REFUELLING REPORT INTENTION.


	TOI 1132 Z	10310 KCS	1515/21

BRITISH WIRE


	14 AUGUST 1943	HUSH SECRET	GP N

0057/14/168	33	XYAL AZUA	( SERIES 1 )

RECEIVED JUST OFF 36 METERS, SIGST 4 FROM MARKWORTH ((66)): "HAVE BEEN AT R/V FOR 2 DAYS, DID NOT MEET SHIP ((SIC))."


	TOI 1940 Z	10310 KCS	1015/19


	14 AUGUST 1943	HUSH SECRET	GP JPC

0929/14/271	68	ELNT OJQM	( SERIES 2 )

AFTER 1200B 16 AUGUST IN RQ 7652 ((PROBABLY CE 2652 = 41.39N - 28.54W)) KUPPISCH ((847)) GIVE MARKWORTH ((66)) FUEL FOR ECONOMICAL RETURN TO WESTERN FRANCE, ABOUT 15-20 CBM. KUPPISCH REPORT IF ARRIVAL LATER THAN 17 AUGUST. OTHERWISE ((REPORT)) ONLY EXECUTION BY SHORT-SIGNAL.


	TOI 0839 Z	10408 KCS	1225/19


	17 AUGUST 1943	HUSH SECRET	GP EJC

0415/17/127	20	OKWE VPXX	( SERIES 1)

FROM:

MARKWORTH ((66))

PROVISIONING COMPLETED. AM RUNNING FINE ON PIENING'S ((155)) ROUTE.

D/F

42.30N - 30.30W U-1-20 CASE 17/3/03 X

TOI 0439 Z 6290 KCS


	TOI 1802 Z	10310 KCS	0934/21


	19 AUGUST 1943	HUSH SECRET	MK JPC

1432/19/150	16	HYYK OQHG	SERIES 1

FROM:

COMSUBS WEST

HOMING POINT FOR MARKWORTH ((66)) IS LORIENT.


	TOI 1512 Z	10310 KCS	1318/24


	20 AUGUST 1943	HUSH SECRET	EJC LC

0950/20/20/162	51	OYXW ORTC	(SERIES 0 AND 1)

FROM:

COMSUBS WEST

1. WISSMANN ((518)) GO OUT ON SPANISH ROUTE. THREE BOATS ARE INBOUND ON THIS ROUTE.

2. TO MARKWORTH ((66)), BROSIN ((134)), AND U-516 ((TILLESSEN)): THREE BOATS ARE OUTBOUND ON THE SPANISH COAST ROUTE.


	TOI 2130	16.1E KCS	1130/24


	20 AUGUST 1943	HUSH SECRET	EJC LC

1038/20/367/163	25	CURB DRHG	(SERIES 1 AND 3)

CIRCUITS BEGINNING 2000B TODAY:

MARKWORTH ((66)), EICK ((510)) ON COASTAL;

KLAUS ((340)), MANKE ((358)), CREMER ((333)), LUESSOW ((571)) ON IRELAND.


	TOI 1408 Z	21.05 KCS	1112/24

In Port Lorient

1 September 1943 to 16 January 1944

Taken over by Oberleutnant zur See Gerhard Seehausen on 2 September 1943


	10 NOVEMBER 1943	HUSH SECRET	RP V

1656/10/382	123	PYST COHN	SERIES 3

REPORTED BY MARKWORTH ((66)) AFTER HIS RETURN:

FAST INDEPENDENTS PROCEED NORTH ON LINE FROM DB 9420 ((28.21N - 80.30W 'A')) TO 3660 ((33.27N - 78.07W 'A')) SOUTH FROM PRINCIPAL PORTS IN CA ((ATLANTIC COAST, CAPE HATTERAS TO CAPE ANN)) ON GREAT CIRCLE ROUTES TO WINDWARD AND MONA ((PASSAGES)), AND VIA BERMUDA FROM CENTRAL AND SOUTH AFRICA ON COURSES AROUND 315 AND 130 TO 150. DEFENSE:: STRONG DAY AIR-PATROL OVER LANES IN DB: AIRSHIPS, LAND-BASED BOMBERS, FLYING BOATS. MEDIUM AIR-PATROL BY DAY IN DC AND DD (WITH RADAR). ONLY SUBMERGED DISPOSITION AND ATTACK ((IS POSSIBLE)) IN DB BY DAY. ((ALL #))*.

*THIS ADDITION ORDERED BY 2031/10.


	TOI 1657Z	15675 KCS	2302/10