See also German Espionage and Sabotage Against the United States in World War II [at NHC]

Op-16-Z
(SC)A1-2(3)/EF30
Serial 00170716

U-1230

From: Chief of Naval Operations.
To: Distribution List.
 
Subject: Report on the Interrogation of German Agents, Gimpel and Colepaugh, Landed on the Coast of Maine from U-1230, dated 13 January 1945.
 
Enclosure: (A) Subject Report, copies as indicated below.
  1. Enclosure (A) is forwarded herewith for information.

  2. Transmission by Registered Guard Mail or U.S. registered mail is authorized in accordance with Article 76 (15) (e) and (f), U.S. Navy Regulations.

John L. Riheldaffer,
By direction.


13 January 1945.

NAVY DEPARTMENT
OFFICE OF THE CHIEF OF NAVAL OPERATIONS
WASHINGTON

REPORT OF THE INTERROGATION OF GERMAN AGENTS, GIMPEL AND COLEPAUGH, LANDED ON THE COAST OF MAINE FROM U-1230.


REPORT OF THE INTERROGATION OF GERMAN AGENTS, GIMPEL AND COLEPAUGH, LANDED ON THE COAST OF MAINE FROM U-1230.

INTRODUCTORY REMARKS

ESTIMATE OF SOURCES

Prisoner GIMPEL is a very difficult subject for interrogation. He was a professional German espionage agent, thoroughly indoctrinated in security. He believes that the death penalty awaits him and that nothing he can do will mitigate his sentence. He was untruthful on several occasions with his interrogators and told them only what he believed they already knew. His statements are of very little value.

Prisoner COLEPAUGH's statements are much more valuable. He is a somewhat unstable New Englander but impressed his interrogators as attempting to tell the truth. he is intelligent, very observant, and has an extraordinary visual memory for details. His attitude toward the interrogators was friendly and cooperative. He was always careful to distinguish between eye witness evidence and hearsay. The interrogators were under the impression that his helpfulness was inspired by the hope of escaping the death penalty.

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DETAILS OF U-1230

TONNAGE

TYPE

BUILDING YARD

BUILDING YARD

INSIGNIA

FLOTILLA

COLOR

CONSTRUCTION

COMPARTMENTATION

--2--

BRIDGE CONSTRUCTION

TORPEDOES AND TORPEDO TUBES

ARMAMENT

--3--

SCUTTLING CHARGES

--4--

DIVING DEPTH

S.B.T. (Submarine Bubble Target)

NOISE MAKING DECOY

--5--

PROPULSION

SCHNORCHEL

--6--

G.S.R. ANTENNAE

RADIO ANTENNAE

R.D.B. (Radar Decoy Balloons)

BOTTLES CARRIED OUTSIDE THE PRESSURE HULL

--7--

RADAR

NAVIGATIONAL AIDS

  1. Echolot: Atlas type carried.

  2. Electrolot: Carried.

  3. An elaborate collection of charts of U.S. and Canadian waters. These were British Admiralty charts with depths indicated in fathoms. A chart with the track of the boat and its current position was always posted in the control room for the crew to see.

--8--

SCHNORCHEL

STANDARD PROCEDURE

--9--

SCHNORCHEL TRIALS

SCHNORCHEL DEPTH

SCHNORCHELING IN ROUGH WATER

--10--

EXHAUST GAS

DANGER OF GAS FROM USE OF SCHNORCHEL

--11--

NEW TYPE OF U-BOATS

INTRODUCTION

TYPE XXI

--12--

TYPE XXIII

--13--

NEW WEAPONS

"ROCKET FIRING U-BOATS"

--14--

MISCELLANEOUS

FUEL OIL

CHOICE OF LANDING PLACE

--15--

HEALTH AND MORALE

--16--

RELATION OF AMT VI WITH THE GERMAN NAVY

--17--

EARLY HISTORY OF U-1230

BALTIC TRIALS

--18--

FIRST PATROL OF U-1230

KIEL TO HORTEN

HORTEN TO KRISTIANSAND

--19--

--20--

KRISTIANSAND TO THE ROSENGARTEN

--21--

NAVIGATION AND STANDARD PROCEDURE AT SEA

--22--

SURFACE RUN

SIGHTING THE BANKS

--23--

THE PERIOD OF MT. DESERT ROCK

--24--

PASSAGE INTO FRENCHMAN BAY

--25--

THE LANDING

--26--

CREW OF U-1230

COMPLEMENT

COMMANDING OFFICER

FIRST WATCH OFFICER

SECOND WATCH OFFICER

ENGINEER OFFICER

ENLISTED MEN

--27--

OTHER U-BOATS

U-BOATS IDENTIFIED BY NUMBER

U-BOATS IDENTIFIED BY INSIGNIA

--28--

SURFACE SHIPS

S.S. NEW YORK

S.S. MILWAUKEE

S.S. ST. LOUIS

MINE LAYING DESTROYERS

SABOTAGED DESTROYER

--29--

NORWEGIAN E-BOATS

--30--

NAVAL BASES

KRISTIANSAND

HORTEN (see diagram)

--31--

--32--

--33--


Horten, Norway
Installations from P/W description and rough sketch.
Locations of installations and details should be verified from other sources.

--34--


Horten, Norway
Detail A
Installations from P/W description and rough sketch.
Locations of installations and details should be verified from other sources.

--35--


Noisemaking Decoy

--36--


Transcribed and formatted for HTML by Marco Bricchetti for the HyperWar Foundation