HOA LAC AIRFIELD NORTH VIETNAM

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP79-00849A000800010001-4
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 10
• Document Creation Date: December 28, 2016
• Document Release Date: March 1, 2006
• Sequence Number: 1
• Publication Date: April 10, 1967
• Content Type: REPORT

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Approved For Release 2006/03/16 : CIA~9-0~8~010001-4
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 06/03/16 :CIA-f~~Y8~~~0080001000
~L-2975
10 APRIL 1967
PAGE 1
HOA LAC AIRFIELD
NORTH VIEZTVAM
2101N 10530E
O
25X1
25X1
25X1
25X1
1. SIGNIFICANCE:
THIS BRIEFING BOARD DEPICTS THE OPERATIONAL STATUS OF HOA LAC
AIRFIELD,
2. LOCATION:
THE AIRFIELD I5 LOCATED ONE NM WEST OF HOA LAC AND 6.5 NM
SOUTH OF SON TAY AT 21-01-53N 105-30-05E.
3? BACKGROUND:
LOW-LEVEL PHOTOGRAPHY OF MARCH 1966 REVEALED A SUSPECT AIRFIELD
UNDER CONSTRUCTION 6.5 NM SOUTH OF SON TAY.
PHOTOGRAPHY OF AUGUST 1966 REVEALED A HIGH LEVEL OF CONSTRUCTION
ACTIVITY AT THE SITE. TWO GRADERS, TEN TRACTORS, THREE TOWED SCRAPERS,
TWENTY TOWED PACKERS, AND NINE UNIDENTIFIED PIECES OF EQUIPMENT WERE
OBSERVED, A CONSTRUCTION SUPPORT AREA 0.3 NNI EAST OF THE RUNWAY CON-
TAINED ONE CRANE SHOVEL, SEVEN TRACTORS, AND FIVE TOWED SCRAPERS.
PHOTOGRAPHY OF NOVEMBER 1966 REVEALED THE AREA UNDER CONSTRUCTION
TO MEASURE 8,500 X 1,500 FEET. NINE AIRCRAFT REVETMENTS WERE NOTED IN
THE CLOUD-FREE AREAS.
4. MISSION READOUT:
 2006/03/16 :CIA-RDP79~09Sd9540 0800010 01-4
ATTACHMENT TO L-2975
10 APRIL 1967
PAGE 2
D ORIENTED NW~SE. A POSSIBLE RUNWAY, MEASURING
APPROXIMATELY 6,985 X 180 FEET AND ORIENTED ENE~WSW, IS UNDER
CONSTRUCTION.
FACILITIES INCLUDE A PARALLEL ASPHALT TAXIWAY WITH TWO CROSS-
OVER LINKS AND TWO END-CONNECTING LINKS, THREE ASPHALT PARKING APRONS,
AND TEN ALERT REVETMENTS (FIVE AT EACH END OF THE RUNWAY). SIX
COMPLETED AIRCRAFT REVETMENTS AND A FIRING-IN BUTT UNDER CONSTRUCTION
ARE LOCATED OFF A DISPERSAL TAXIWAY EXTENDING FROM THE NORTHWEST END
OF THE RUNWAY.
ELECTRONIC FACILITIES INCLUDE A REVETTED ILS FACILITY APPROXIMATELY
3,000 FEET FROM, AND IN LINE WITH, THE NORTHWEST END OF THE RUNWAY,
AND A REVETTED PROBABLY GCA SITE AT THE NORTHWEST END OF THE RUNWAY
CONSISTING OF A PROBABLE HOME TALK PRECISION APPROACH RADAR AND A
PROBABLE LONG EYE AIRFIELD SURVEILLANCE RADAR.
EXTENSIVE CONSTRUCTION ACTIVITY CONTINUES THROUGHOUT THE COMPLEX.
AIRCRAFT OBSERVED AT THE FIELD ARE FIVE MIG-175.
5? COLLATERAL:
COLLATERAL REPORTS THAT THE DEVELOPMENT OF HOA LAC AIRFIELD WILL
GIVE THE NORTH VIETNAMESE AIR FORCE AN INTERCEPT CAPABILITY TWENTY-
FIVE MILES FURTHER WEST THAN EXISTING LAUNCH BASES AND TOWARD THE
MOST FREQUENTLY USED INGRESS APPROACH BY THE U.S. AIR FORCE. HOA
LAC, WITH SIXTEEN REVE'II~LIIVTS, CAN SHELTER AT LEAST ONE MORE REGIMENT
Approved For Release 2006/03/16 :CIA-RDP79-00849A 0001-4
T
 ATTACHMENT TO L-2975
10 APRIL 1967
PAGE 3
OF NORTH VIETNAMESE FIGHTERS WHICH WOULD ALLOW AN EXPANSION OF
OVERALL AOB. IT FURTHER PERMITS FLEXIBILITY OF BOTH DISPERSAL AND
RECOVERY FACILITIES. IN ADDITION TO THE THREAT TO U.S. AIR POWER
IT ALSO REFLECTS THE INTENSITY OF THE SOVIET AID PROGRAM TO ESTABLISH
A COMPLETE AIR DEFENSE SYSTIIK WHERE THEY CAN DENY NORTH VIETNAMESE
AIR SPACE TD U.S. AIR STRIKES.I
Approved For Release 2006/03/16 :CIA-RDP79-00849 0001-4
TOP SECRET
25X1
25X1
25X1
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 6/03/16 :CIA-R~'F~J-~4~~0 80001000 -4
-2975
10 APRIL 1967
PAGE 4
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1PACFLTINTSUM 38-67, 15 FEBRUARY 1967 (~uECRE 25X1
2DIA INTELLIGENCE SUMMARY 52-67, 03 MARCH 1967 (TOP SECRET
3DIA INTELLIGENCE SUMMARY 67-67, 21 MARCH 1967 (TOP SECRET
Approved For Release 2006/03/16 :CIA-RDP79-00849A 1-4
T
 /03/16T~~ P~
REVISION OF ATTACHMENT TO L-2975
13 APRIL 1967
HOA LAC AIRFIELD
NORTH VIETNAM
2101N 10530E
1. SIGNIFICANCE:
THIS BRIEFING BOARD DEPICTS THE OPERATIONAL STATUS OF HOA LAC
AIRFIELD.
2. LOCATION:
THE AIRFIELD IS LOCATED ONE NM WEST OF HOA LAC AND 6.5 NM
SOUTH OF SON TAY AT 21-01-53N 105-30-05E.
3. BACKGROUND:
LOW-LEVEL PHOTOGRAPHY OF MARCH 1966 REVEALED A SUSPECT AIRFIELD
UNDER CONSTRUCTION 6.5 NM SOUTH OF SON TAY.
PHOTOGRAPHY OF AUGUST 1966 REVEALED A HIGH LEVEL OF CONSTRUCTION
ACTIVITY AT THE SITE. TWO GRADERS, TEN TRACTORS, THREE TOWED SCRAPERS,
TWENTY TOWED PACKERS, AND NINE UNIDENTIFIED PIECES OF EQUIPMENT WERE
OBSERVED. A CONSTRUCTION SUPPORT AREA 0.3 NM EAST OF THE RUNWAY CON-
TAINED ONE CRANE SHOVEL, SEVEN TRACTORS, AND FIVE TOWED SCRAPERS.
PHOTOGRAPHY OF NOVEMBER 1966 REVEALED THE AREA UNDER CONSTRUCTION
TO MEASURE 8,500 X 1,500 FEET. NINE AIRCRAFT REVETDIENTS WERE NOTED IN
THE CLOUD-FREE AREAS.
4. MISSION READOUT:
TOP SECRET
 2006/03/16 T8'P-~
REVISION OF ATTACHMENT TO L-2875
13 APRIL Ig67
PAGE 2
APPROXIMATELY 6,885 X 180 FEET AND ORIENTED ENE~WSW, IS UNDER
CONSTRUCTION.
FACILITIES INCLUDE A PARALLEL ASPHALT TAXIWAY WITH TWO CROSS-
OVER LINKS AND TWO END-CONNECTING LINKS, T'rIREE ASPHALT PARKING APRONS,
AND TEN ALERT REVETMENTS (FIVE AT EACH END OF THE RUNWAY). SIX
COMPLETED AIRCRAFT REVETMENTS AND A FIRING-IN BUTT UNDER CONSTRUCTION
ARE LOCATED OFF A DISPERSAL TAXIGIAY EXTENDING FROM THE NORTHWEST END
OF THE RUNWAY.
ELECTRONIC FACILITIES INCLUDE A REVETTED ILS FACILITY CONTAINING
A PROBABLE INNER MARKER BEACON AND~OR LOCALIZER APPROXIMATELY 3,000
FEET FROM, AND IN LINE WITH, THE NORTHWEST END OF THE RUNWAY, AND A
REVETTED PROBABLE GLIDE SLOPE TRANSMITTER AT THE NORTHWEST END OF
THE RUNWAY.
EXTENSIVE CONSTRUCTION ACTIVITY CONTINUES THROUGHOUT THE COMPLEX.
AIRCRAFT OBSERVED AT THE FIELD ARE FIVE MIG-175.
5? COLLATERAL:
COLLATERAL REPORTS THAT THE DEVELOPMENT OF HOA LAC AIRFIELD WILL
GIVE THE NORTH VIETNAMESE AIR FORCE AN INTERCEPT CAPABILITY T47ENTY-
FIVE MILES FURTHER WEST THAN EXISTING LAUNCH BASES AND TOWARD TFIE
MOST FREQUENTLY USED INGRESS APPROACH BY THE U.S. AIR FORCE. HOA
LAC, WITH SIXTEEN REVETMENTS, CAN SHELTER AT LEAST ONE MORE REGIMENT
TOP SECRET
 "OCl11~L~
REVISION OF ATTACHMENT TO L-2875
13 APRIL 1867
PAGE 3
OF NORTH VIETNAMESE FIGHTERS WHICH 410ULD ALLOW AN EXPANSION OF
OVERALL AOB. IT FURTfIER PERMITS FLEXIBILITY OF BOTH DISPERSAL AND
RECOVERY FACILITIES. IN ADDITION TO THE THREAT TO U.S. AIR POWER,
IT ALSO REFLECTS THE INTENSITY OF THE SOVIET AID PROGRAM TO ESTABLISH
A COMPLETE AIR DEFENSE SYSTEM WHERE THEY CAN DENY NORTH VIETNAMESE
AIR SPACE TO U.S. AIR STRIKES.1
TOP SECRET
 006/03/16 '1'[1T'-F~7LNi~~
NT TO L-2975
13 APRIL 1967
PAGE 4
IPACFLTINTSUM 38-07, 15 FEBRUARY 1907 (SECRET
2DIA INTELLIGENCE SUMMARY 52-07, 03 MARCH 1907 (TOP SECRET
Approved For Release 2006/03/16 : ~1~2- D ~~~~~
 COXFIDENiIAL
Approved For Release 2006/03/16 :CIA-R[~,~,~r,Q,,~,{~~ 0001-4
HOA LAC AIRFIELD
NORTH VIETNAM
21-O1N 105-30E