MODIFICATION OF CHONGJU PATROL CRAFT NAMPO SHIPYARD, NORTH KOREA(SANITIZED)

Document Type: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP90T00784R000100250009-9
Release Decision: 
RIPPUB
Original Classification: 
S
Document Page Count: 
5
Document Creation Date: 
December 28, 2016
Document Release Date: 
September 9, 2011
Sequence Number: 
9
Case Number: 
Publication Date: 
June 15, 1982
Content Type: 
REPORT
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PDF icon CIA-RDP90T00784R000100250009-9.pdf166.18 KB
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Sanitized Copy Approved for Release 2011/09/09: CIA-RDP90T00784R000100250009-9 Iq Next 1 Page(s) In Document Denied Sanitized Copy Approved for Release 2011/09/09: CIA-RDP90T00784R000100250009-9 Sanitized Copy Approved for Release 2011/09/09: CIA-RDP90T00784R000100250009-9 ROUTING TO: NAME AND ADDRESS DATE INITIALS 1 2 3 4 ACTION DIRECT REPLY PREPAR E REPLY APPROVAL DISPATCH RECOMMENDATION COMMENT FILE RETURN CONCURRENCE INFORMATION SIGNATURE REMARKS: FROM: NAME, ADDRESS, AND PHONE NO. DATE SECRET (Security Classification) NOFORN (See inside cover) CONTROL NO. 7-17-1 5250/82 NPIC/IEG (6/82) COPY OF Warning Notice Intelligence Sources and Methods Involved NATIONAL SECURITY INFORMATION Unauthorized Disclosure Subject to Criminal Sanctions SECRET (Security Classification) 49 Sanitized Copy Approved for Release 2011/09/09: CIA-RDP90T00784R000100250009-9 Sanitized Copy Approved for Release 2011/09/09: CIA-RDP90T00784R000100250009-9 Warning Notice Intelligence Sources and Methods Involved (WNINTEL) or (D) NATIONAL SECURITY INFORMATION Unauthorized Disclosure Subject to Criminal Sanctions NOFORN- Not Releasable to Foreign Nationals NOCONTRACT- Not Releasable to Contractors or Contractor/Consultants PROPIN- Caution- Proprietary Information Involved ORCON- Dissemination and Extraction of Information Controlled by Originator REL. . . This Information has been Authorized for Release to .. . Sanitized Copy Approved for Release 2011/09/09: CIA-RDP90T00784R000100250009-9 Sanitized Copy Approved for Release 2011/09/09: CIA-RDP90T00784R000100250009-9 SECRET (c) NATIONAL PHOTOGRAPHIC INTERPRETATION CENTER Page 1 of 2 Copy Attachment to Z-15250/82 NPIC/IEG (06/82)' 15 JUNE 1982 MODIFICATION OF CHONGJU PATROL CRAFT NAMPO SHIPYARD, NORTH KOREA 1. (S/D) SIGNIFICANCE: THREE CHONGJU PATROL CRAFT (PC) HULLS ARE BEING MODIFIED TO A MISSILE ATTACK BOAT (PTG) CONFIGURATION. IN ADDITION, ANTISUBMARINE WARFARE (ASW) MODIFICATIONS ARE IDENTIFIED FOR THE FIRST TIME ON PREVIOUSLY LAUNCHED CHONGJU PC. 2. (S/D) REMARKS: CONFIRMED THE MODIFICATION OF THE THREE CHONGJU PATROL CRAFT HULLS REMAINING ON THE FENCE ENCLOSED BUILDINGWAYS AT NAMPO SHIPYARD TO A PTG CONFIGURATION. ONE CHONGJU PTG HAD THREE EXPOSED SS-N-2 (STYX) CRUISE MISSILE LAUNCH RAILS AND ONE STYX MISSILE LAUNCHER MOUNTED ON THE DECK (GRAPHIC 1 OF 2). THE OTHER TWO CHONGJU PTG HULLS WERE IN AN EARLIER STAGE OF MODIFICATION. THE COMPLETION OF THIS MODIFICATION PROGRAM WILL PROVIDE THE WEST COAST FLEET WITH THREE NEW PTG CAPABLE OF LAUNCHING FOUR STYX MISSILES EACH. THE SAME NUMBER OF THE INDIGENOUS SOJU PTG ARE CURRENTLY UNDER CONSTRUCTION AT NAJIN SHIPYARD NUMBER 28 ION THE EAST COAST, AND THE NORTH KOREANS HAVE A TOTAL OF EIGHT SOVIET-BUILT OSA I PTG, WITH FOUR DEPLOYED ON EACH COAST. (S/D) THE CHONGJU HULLS ARE WHEN COMPLETED THE VESSELS WILL HAV1 r'uutt CRUISE MISSILE LAUNCHERS, TWO ON EACH SIDE MOUNTED IN TANDEM, AND ANTIAIRCRAFT. GUNS MOUNTED ON THE CENTERLINE, FORE AND AFT. THE FORWARD PORTION OF THE DECKHOUSE HAS BEEN ERECTED ON ALL THREE UNITS AND THE MOUNTING RINGS FOR THE ANTIAIRCRAFT GUN SYSTEMS ARE IN PLACE. THE CONFIGURATION OF THE WEAPONS SYSTEMS AND THE SIZE OF THE VESSELS ARE SIMILAR TO THOSE OF THE SOJU PTG, BUT DIFFERS FROM EITHER THE SOJU OR OSA I PTG IN THAT'THE BRIDGE AREA/FORWARD PORTION OF THE DECKHOUSE IS NOT THE SAME, AND THE CRUISE MISSILE LAUNCHERS ON THE CHONGJU PTG ARE MOUNTED CLOSER TO THE STERN, ENTIRELY AFT OF MIDSHIPS. These notes have been prepared for briefing purposes only and should not be used for detailed ana- lytical work. Their use should be restricted to the particular briefing board(s) they were prepared for and must be considered valid only for the reporting period as indicated by the date of issue. WARNING NOTICE Intelligence Sources and Methods Involved NOFORN~ SECRET __1 25X1 25X1 Sanitized Copy Approved for Release 2011/09/09: CIA-RDP90T00784R000100250009-9 Sanitized Copy Approved for Release 2011/09/09: CIA-RDP90T00784R000100250009-9 (c) NATIONAL PHOTOGRAPHIC INTERPRETATION CENTER Page 2 of 2 Copy (S/D) THE CHONGJU HULLS HAVE BEEN AT NAMPO SINCE 1974. AN EXPERIMENT INVOLVING STYX MISSILE LAUNCHER COVERS AND ONE OF THESE CHONGJU HULLS WAS OBSERVED AT THE SHIPYARD DURING JUNE 1.977. HOWEVER, NO LAUNCH RAILS WERE MOUNTED ON THE VESSELS AND THE LAUNCHER COVERS WERE PLACED ON BUT NOT AFFIXED TO THE DECK OF ONE UNIT. BETWEEN MID-1977 AND MID-1981 NO MORE THAN FOUR STYX MISSILE LAUNCHER COVERS WERE OBSERVED AT THE SHIPYARD AND THE CHONGJU PROGRAM APPEARED TO HAVE BEEN ABANDONED. TWO OF THE FIVE CHONGJU HULLS AT NAMPO WERE CONFIGURED AS PATROL CRAFT AND LAUNCHED DURING 1981. BY AUGUST 1981 EIGHT MISSILE LAUNCHER COVERS WERE NEAR THE THREE REMAINING CHONGJU HULLS, AND 12 WERE OBSERVED BY MARCH 1982. THIS ACTIVITY PARALLELS THE SOJU PTG CONSTRUCTION PROGRAM AT NAJIN SHIPYARD NO. 28. THE FOUR EAST COAST CHONGJU UNITS WERE UNDER MODIFICATION TO A PATROL CRAFT CONFIGURATION AT NAJIN SHIPYARD NO. 28 DURING 1981; TO DATE ONLY ONE CHONGJU PC HAS BEEN LAUNCHED THERE. (S/D) IN ADDITION TO THE ABOVE ACTIVITY, THE OF NAMPO, OF NAJIN, REVEALED FURTHER MODIFICATION TO TWO OF THE THREE PREVIOUSLY LAUNCHED CHONGJU PC. TWO LAUNCH RAILS FOR DEPTH CHARGES HAD BEEN MOUNTED ON THE STERN, AND POSSIBLE ASW ROCKET LAUNCHERS WERE OBSERVED ON THE WINGS OF THE SUPERSTRUCTURE OF EACH VESSEL (GRAPHIC 2 OF 2). THIS MODIFICATION WILL FURTHER AUGMENT THE NORTH KOREAN NAVY ASW CAPABILITY. 3. (S) NOFORNI 25X1 Attachment to Z-15250/82 SEC'RFT These notes have been prepared for briefing purposes only and should not be used for detailed ana- lytical work. Their use should be restricted to the particular briefing board(s) they were prepared for and must be considered valid only for the reporting period as indicated by the date of issue. WARNING NOTICE Intelligence Sources and Methods Involved 1.. lnC DF gFrRFT 25X1 25X1 25X1 25X1 Sanitized Copy Approved for Release 2011/09/09: CIA-RDP90T00784R000100250009-9