Top Secret
NATIONAL PHOTOGRAPHIC
INTERPRETATION CENTER
BASIC
IMAGERY
INTERPRETATION
REPORT
PETROVKA NAVAL BASE AND
SHIPYARD (SHIPYARD ACTIVITIES,
DECEMBER 1976--APRIL 1978) (TSR)
STRATEGIC WEAPONS INDUSTRIAL. FACILITIES
USSR
JULY 1978
Top Secret
RCA-09/0019/78
Copy 9
Sanitized Copy Approved for Release 2010/03/03: CIA-RDP78BO7179A000100370001-8
Petrovka Naval Base and Shipyard (Shipyard Activities, December 1976--April 1978) I UR
UTM COORDINATES
NA
GEOGRAPHIC COORDINATES
43-07-03N 132-20-17E
NEGATION DATE (If required)
NA
1. (TSR) This report describes significant activity at Petrovka Naval Base and Shipyard,
USSR, from December 1976 through April 1978. The earliest imagery in this time period was
obtained on This report updates NPIC reportated May 1977.
2. (TSR) Significant activity includes the fitting-out'of D-I nuclear-powered ballistic mis-
sile submarines (SSBNs), the maintenance/overhaul of Y SSBNs and V-I nuclear-powered at-
tack submarines (SSNs), and the overhaul/modification of E-II cruise missile submarines
(SSGNs) and Z attack submarines (SSs). Facility changes during this reporting period included
the completion of a repair hall, the identification of a second repair hall under construction, and
the construction of an engineering/light fabrication building, an administration building with
storage wings, and two civil defense areas.
3. (TSR) This report contains four annotated photographs and an order-of-battle table by
reporting position of combatants and selected auxiliaries. Also included is an updated layout of
the shipyard showing the order=of-battle reporting position and a functional area analysis.
Status/Activity
4. (TSR) The first repair hall (Figures 1 and 2), designated repair hall 1, was externally
complete by early 1976 and was operational by when a Y SSBN was placed inside
the hall, probably on the north set of rails. The new transverser, completed in October 1976,1
was used for the first time during the transfer of this Y SSBN to the repair hall.
5. (TSR) Between a large portion of the upper door track and
supports on the north side of repair hall 1 were removed, probably to facilitate the emplacement
of the uprights for construction of repair hall 2 since space between the two halls was limited.
The removal of the sections and the presence of a security fence around the construction area of
repair hall 2 preclude sliding the doors of repair hall 1 to the north during the current stage of
construction.
six pairs of uprights had been emplaced. The dimensions of this new building
are Although this building is shorter than repair hall 1, it can accommo-
date all vessels, capable of fitting into the basin (i.e., through the D-I SSBN). Footings being
constructed between the north uprights of repair hall 2 and the adjacent steamlines indicate
that an administration wing may also be added to this hall.-The rail systems in front of the two
repair halls are not, the same. Repair hall 1 has three four-rail sets with 6-meter spacing. The
sets are 2 meters apart.' Repair hall 2 has a centerline set of rails with 6-meter spacing, but the
sets on either side of the center set consist of 11 rails each (Figure 3). These cover a distance of
10"meters on either side of the center rails. However, the distance between any group of seven
rails will provide a 6-meter spacing. The inner rails of the two outer rail sets are 2 meters from
the center set, and there is a 5-meter clearance, between the outermost rails and the building
uprights. This building will probably be able to hold three submarines simultaneously.
6. (TSR) Dismantlement of the old transverser carriage had begun byl and
it was almost complete by0 Even though the trackage for the transverser extension is
double that of the original, the new transverser carriage is able to transit between the two. This
double trackage was probably necessary to accommodate the weight of an SSBN entering the
repair hall.
7. (TSR) -Construction of repair hall 2 (Figure 3) began in the summer of 1975 butcould
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8. (TSR) Construction continued on the administration-type building and two attached
sheds/warehouses adjacent to reporting position (RP) 23. The administration-type building is
four stories high and is The shed/warehouse extensions are
9. (TSR) A new civil defense area, designated area 1 (Figures 1 and 2), is under construc-
tion north of the shipyard. It contains a probable engineering building with a light fabrication/
shop wing. The engineering building is The light fabrication/
shop wing is A basement shelter was constructed under the
engineering section of the building, and an additional subsurface personnel shelter is being
constructed north of the building. Heating lines are being installed which seem to tie this
building to the base. Another new civil defense area, designated area 2, is northwest of the shipyard. Its
proximity to the base may indicate an association between the two.
Delta-Class SSBN
10. (TSR) The launching of D-I SSBNs at Komsomolsk Shipyard Amur 199
the fall of 1977. Unit 8 was launched by and left Komsomolsk byl it
also went on sea trials in the fall of 1977.
12. (TSR) The Y SSBN which arrived at RP 2 during February 1976 continued its over-
haul. Between the Y SSBN was moved to RP 1, but by
it had returned to RP 2. By this unit had moved to RP 4 where it
the shipyard between
remained at that position at least through) On
a Y SSBN with a dark-toned sonar belt was at RP 22. This was either the same
submarine with the sonar coated or a new arrival. Whichever the case, this submarine departed
if. (TSR) Six Y-class SSBNs were in various stages of overhaul/repair during this report-
ing period; three of these were completed. Each Y SSBN will be discussed in the order of arrival
shelf, and the Y SSBN previous) at RP 4 was gone, indicating that the submarine at RP 4 had
probably moved to RP 11. By~the Y SSBN on the shelf had departed the base.
13. (TSR) The Y SSBN which began overhaul at RP 6 in January or February 1976
basin shelf with scaffolding around the forward one-third of the hull and the sail planes re-
moved. The screw propellers had been removed by were positioned south of the
basin inner gate, remained there through were gone.
Between this submarine was moved into the repair hall. The scaffolding
that had surrounded the submarine remained on the shelf and precluded launching the subma-
rine into the basin (Figure 4). This unit has been in the hall for the remainder of the reporting
period.
14. (TSR) A Y SSBN arrived at RP 4 by vas in the
ARD(T) at RP 2. Plating had been removed in the area of the machinery spaces by
By the submarine was out of the ARD(T), and by I I a partial work
and was replaced by a Y SSBN which will be discussed later.
15. (TSR) On transfer dollies were positioned on the shelf to receive a
submarine. On a Y SSBN was observed on the basin shelf where it remained
through at least On the basis of the Dobservations, this unit appeared
to be a new arrival at the facility. This unit possibly went on the shelf for preoverhaul/repair
inspection, since on the basin was flooded, and by the
submarine was at the slanted pier (RP.22). By 0 some deck plating had been
removed. By F----] the submarine had departed Petrovka. 1
-2-
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8. (TSR) Construction continued on the administration-type building and two attached
sheds/warehouses adjacent to reporting position (RP) 23. The administration-type building is
four stories high and is The shed/warehouse extensions are
9. (TSR) A new civil defense area, designated area 1 (Figures 1 and 2), is under construc-
tion north of the shipyard. It contains a probable engineering building with a light fabrication/
shop wing. The engineering building is The light fabrication/
shop wing is A basement shelter was constructed under the
engineering section of the building, and an additional subsurface personnel shelter is being
constructed north of the building. Heating lines are being installed which seem to tie this
building to the base. Another new civil defense area, designated area 2, is northwest of the shipyard. Its
proximity to the base may indicate an association between the two.
Delta-Class SSBN
10. (TSR) The launching of D-I SSBNs at Komsomolsk Shipyard Amur 199
the fall of 1977. Unit 8 was launched by and left Komsomolsk byl it
also went on sea trials in the fall of 1977.
12. (TSR) The Y SSBN which arrived at RP 2 during February 1976 continued its over-
haul. Between the Y SSBN was moved to RP 1, but by
it had returned to RP 2. By this unit had moved to RP 4 where it
the shipyard between
remained at that position at least through) On
a Y SSBN with a dark-toned sonar belt was at RP 22. This was either the same
submarine with the sonar coated or a new arrival. Whichever the case, this submarine departed
if. (TSR) Six Y-class SSBNs were in various stages of overhaul/repair during this report-
ing period; three of these were completed. Each Y SSBN will be discussed in the order of arrival
shelf, and the Y SSBN previous) at RP 4 was gone, indicating that the submarine at RP 4 had
probably moved to RP 11. By~the Y SSBN on the shelf had departed the base.
13. (TSR) The Y SSBN which began overhaul at RP 6 in January or February 1976
basin shelf with scaffolding around the forward one-third of the hull and the sail planes re-
moved. The screw propellers had been removed by were positioned south of the
basin inner gate, remained there through were gone.
Between this submarine was moved into the repair hall. The scaffolding
that had surrounded the submarine remained on the shelf and precluded launching the subma-
rine into the basin (Figure 4). This unit has been in the hall for the remainder of the reporting
period.
14. (TSR) A Y SSBN arrived at RP 4 by vas in the
ARD(T) at RP 2. Plating had been removed in the area of the machinery spaces by
By the submarine was out of the ARD(T), and by I I a partial work
and was replaced by a Y SSBN which will be discussed later.
15. (TSR) On transfer dollies were positioned on the shelf to receive a
submarine. On a Y SSBN was observed on the basin shelf where it remained
through at least On the basis of the Dobservations, this unit appeared
to be a new arrival at the facility. This unit possibly went on the shelf for preoverhaul/repair
inspection, since on the basin was flooded, and by the
submarine was at the slanted pier (RP.22). By 0 some deck plating had been
removed. By F----] the submarine had departed Petrovka. 1
-2-
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8. (TSR) Construction continued on the administration-type building and two attached
sheds/warehouses adjacent to reporting position (RP) 23. The administration-type building is
four stories high and is The shed/warehouse extensions are
9. (TSR) A new civil defense area, designated area 1 (Figures 1 and 2), is under construc-
tion north of the shipyard. It contains a probable engineering building with a light fabrication/
shop wing. The engineering building is The light fabrication/
shop wing is A basement shelter was constructed under the
engineering section of the building, and an additional subsurface personnel shelter is being
constructed north of the building. Heating lines are being installed which seem to tie this
building to the base. Another new civil defense area, designated area 2, is northwest of the shipyard. Its
proximity to the base may indicate an association between the two.
Delta-Class SSBN
10. (TSR) The launching of D-I SSBNs at Komsomolsk Shipyard Amur 199
the fall of 1977. Unit 8 was launched by and left Komsomolsk byl it
also went on sea trials in the fall of 1977.
12. (TSR) The Y SSBN which arrived at RP 2 during February 1976 continued its over-
haul. Between the Y SSBN was moved to RP 1, but by
it had returned to RP 2. By this unit had moved to RP 4 where it
the shipyard between
remained at that position at least through) On
a Y SSBN with a dark-toned sonar belt was at RP 22. This was either the same
submarine with the sonar coated or a new arrival. Whichever the case, this submarine departed
if. (TSR) Six Y-class SSBNs were in various stages of overhaul/repair during this report-
ing period; three of these were completed. Each Y SSBN will be discussed in the order of arrival
shelf, and the Y SSBN previous) at RP 4 was gone, indicating that the submarine at RP 4 had
probably moved to RP 11. By~the Y SSBN on the shelf had departed the base.
13. (TSR) The Y SSBN which began overhaul at RP 6 in January or February 1976
basin shelf with scaffolding around the forward one-third of the hull and the sail planes re-
moved. The screw propellers had been removed by were positioned south of the
basin inner gate, remained there through were gone.
Between this submarine was moved into the repair hall. The scaffolding
that had surrounded the submarine remained on the shelf and precluded launching the subma-
rine into the basin (Figure 4). This unit has been in the hall for the remainder of the reporting
period.
14. (TSR) A Y SSBN arrived at RP 4 by vas in the
ARD(T) at RP 2. Plating had been removed in the area of the machinery spaces by
By the submarine was out of the ARD(T), and by I I a partial work
and was replaced by a Y SSBN which will be discussed later.
15. (TSR) On transfer dollies were positioned on the shelf to receive a
submarine. On a Y SSBN was observed on the basin shelf where it remained
through at least On the basis of the Dobservations, this unit appeared
to be a new arrival at the facility. This unit possibly went on the shelf for preoverhaul/repair
inspection, since on the basin was flooded, and by the
submarine was at the slanted pier (RP.22). By 0 some deck plating had been
removed. By F----] the submarine had departed Petrovka. 1
-2-
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8. (TSR) Construction continued on the administration-type building and two attached
sheds/warehouses adjacent to reporting position (RP) 23. The administration-type building is
four stories high and is The shed/warehouse extensions are
9. (TSR) A new civil defense area, designated area 1 (Figures 1 and 2), is under construc-
tion north of the shipyard. It contains a probable engineering building with a light fabrication/
shop wing. The engineering building is The light fabrication/
shop wing is A basement shelter was constructed under the
engineering section of the building, and an additional subsurface personnel shelter is being
constructed north of the building. Heating lines are being installed which seem to tie this
building to the base. Another new civil defense area, designated area 2, is northwest of the shipyard. Its
proximity to the base may indicate an association between the two.
Delta-Class SSBN
10. (TSR) The launching of D-I SSBNs at Komsomolsk Shipyard Amur 199
the fall of 1977. Unit 8 was launched by and left Komsomolsk byl it
also went on sea trials in the fall of 1977.
12. (TSR) The Y SSBN which arrived at RP 2 during February 1976 continued its over-
haul. Between the Y SSBN was moved to RP 1, but by
it had returned to RP 2. By this unit had moved to RP 4 where it
the shipyard between
remained at that position at least through) On
a Y SSBN with a dark-toned sonar belt was at RP 22. This was either the same
submarine with the sonar coated or a new arrival. Whichever the case, this submarine departed
if. (TSR) Six Y-class SSBNs were in various stages of overhaul/repair during this report-
ing period; three of these were completed. Each Y SSBN will be discussed in the order of arrival
shelf, and the Y SSBN previous) at RP 4 was gone, indicating that the submarine at RP 4 had
probably moved to RP 11. By~the Y SSBN on the shelf had departed the base.
13. (TSR) The Y SSBN which began overhaul at RP 6 in January or February 1976
basin shelf with scaffolding around the forward one-third of the hull and the sail planes re-
moved. The screw propellers had been removed by were positioned south of the
basin inner gate, remained there through were gone.
Between this submarine was moved into the repair hall. The scaffolding
that had surrounded the submarine remained on the shelf and precluded launching the subma-
rine into the basin (Figure 4). This unit has been in the hall for the remainder of the reporting
period.
14. (TSR) A Y SSBN arrived at RP 4 by vas in the
ARD(T) at RP 2. Plating had been removed in the area of the machinery spaces by
By the submarine was out of the ARD(T), and by I I a partial work
and was replaced by a Y SSBN which will be discussed later.
15. (TSR) On transfer dollies were positioned on the shelf to receive a
submarine. On a Y SSBN was observed on the basin shelf where it remained
through at least On the basis of the Dobservations, this unit appeared
to be a new arrival at the facility. This unit possibly went on the shelf for preoverhaul/repair
inspection, since on the basin was flooded, and by the
submarine was at the slanted pier (RP.22). By 0 some deck plating had been
removed. By F----] the submarine had departed Petrovka. 1
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8. (TSR) Construction continued on the administration-type building and two attached
sheds/warehouses adjacent to reporting position (RP) 23. The administration-type building is
four stories high and is The shed/warehouse extensions are
9. (TSR) A new civil defense area, designated area 1 (Figures 1 and 2), is under construc-
tion north of the shipyard. It contains a probable engineering building with a light fabrication/
shop wing. The engineering building is The light fabrication/
shop wing is A basement shelter was constructed under the
engineering section of the building, and an additional subsurface personnel shelter is being
constructed north of the building. Heating lines are being installed which seem to tie this
building to the base. Another new civil defense area, designated area 2, is northwest of the shipyard. Its
proximity to the base may indicate an association between the two.
Delta-Class SSBN
10. (TSR) The launching of D-I SSBNs at Komsomolsk Shipyard Amur 199
the fall of 1977. Unit 8 was launched by and left Komsomolsk byl it
also went on sea trials in the fall of 1977.
12. (TSR) The Y SSBN which arrived at RP 2 during February 1976 continued its over-
haul. Between the Y SSBN was moved to RP 1, but by
it had returned to RP 2. By this unit had moved to RP 4 where it
the shipyard between
remained at that position at least through) On
a Y SSBN with a dark-toned sonar belt was at RP 22. This was either the same
submarine with the sonar coated or a new arrival. Whichever the case, this submarine departed
if. (TSR) Six Y-class SSBNs were in various stages of overhaul/repair during this report-
ing period; three of these were completed. Each Y SSBN will be discussed in the order of arrival
shelf, and the Y SSBN previous) at RP 4 was gone, indicating that the submarine at RP 4 had
probably moved to RP 11. By~the Y SSBN on the shelf had departed the base.
13. (TSR) The Y SSBN which began overhaul at RP 6 in January or February 1976
basin shelf with scaffolding around the forward one-third of the hull and the sail planes re-
moved. The screw propellers had been removed by were positioned south of the
basin inner gate, remained there through were gone.
Between this submarine was moved into the repair hall. The scaffolding
that had surrounded the submarine remained on the shelf and precluded launching the subma-
rine into the basin (Figure 4). This unit has been in the hall for the remainder of the reporting
period.
14. (TSR) A Y SSBN arrived at RP 4 by vas in the
ARD(T) at RP 2. Plating had been removed in the area of the machinery spaces by
By the submarine was out of the ARD(T), and by I I a partial work
and was replaced by a Y SSBN which will be discussed later.
15. (TSR) On transfer dollies were positioned on the shelf to receive a
submarine. On a Y SSBN was observed on the basin shelf where it remained
through at least On the basis of the Dobservations, this unit appeared
to be a new arrival at the facility. This unit possibly went on the shelf for preoverhaul/repair
inspection, since on the basin was flooded, and by the
submarine was at the slanted pier (RP.22). By 0 some deck plating had been
removed. By F----] the submarine had departed Petrovka. 1
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Table 1. (Continued)
This table in its entirety is classified TOP SECRET RUFF
1978
Reporting
P
ition
os
1
0-I SSBN
0-I SSBN
Y SSBN
Y-SS BN
YD YD
Y SSBN
Y SSBN
Y SSBN
2
Y SSBN
Y SSBN
Y SSBN IDO
Y SSBN
Y SSBN
Y SSBN
YRSN
PM-124 YRSN
ZEYA YRSN
PM-124 YRSN
ZEYA YRSN
PM-124 YRSN
ZEYA YRSN
PM-i24 YRSN
ZEYA YRSN
PM-124 YRSN PM-124 YRSN
ZEYA YRSN ZEYA YRSN
43 AGH
43 AGH T
PM-124
ZEYA YRSN
YD
T-43 AGH
Z RSN
3
T-43 AGH
YD
T-43 AGH
ZEYA YRSN
YD
T-43 AGH IDO
Y SSBN
YD
T-43 AGH
T-43 AGH
-
T
SSBN
T-43 AGH
T)
/
4
ARD{T
ARD(T)
ARD(T) IDO
ARD{T
ARDIT
v
ARD(
DO
IDO
N SSN
IDO
i
ibl
Not visible
YFL
2RSBs
B
YFL
YFL
YFL
00
YFL
YFL
e
Not v
s
2RSBs
2RSB5
2RSBs
2 RSBs
2 RSBs
2 RSBs
IDO
10
IDO
11
ZVSS
7-V SS
Z-V SS
IDO
Z-V SS
Dollies
Dallies
Dallies
on shelf
12
I DO
V SS
Z
Z-V SS
Z-V SS
13
IDO
Z-V SS
Z-V SS
-
14
E-li SSGN
E-II SSGN
E-11 SSGN
100
E-II SSGN
E-II SSGN
E-II SSGN
E-Il SSGN
E-Il SSGN
B-II SSGN
15
E-II SSGN
E-II SSGN
E-II SSGN
IDO
E-II SSGN
E-II SSGN
E-II SSGN
E-II SSGN
E-II SSGN
E-II SSGN
16
V-I SSN
V-1 SSN
V-I SSN
IDO
V-I SSN
V-I SSN
V-I SSN
V-I SSN
V-I SSN
V-I SSN
17
Pier sect
Pier sect
Pier sect
IDO
Pier sect
Pier sect
Pier sect
Pier sect
Pier sect
Pier sect
Ucon
F1SB
VYN YRB
VYN YRB
VYN YRB
19
VYN YRB
VYN YRB
VYN YRB
IDO
VYN YRB
VYN YRB
VYN YR
B
R
PRUT ASR
PRUT ASR
PRUT ASR
IDO
PRUT ASR
PRUT ASR
PRUT AS
R
PRUT ASR
I FFL
PETYA
PRUT ASR
PETYA-I FFL
PRUT AS
PETYA-I FFL
20
PETYA-I FFL
PETYA-1 FFL
PETYA-lFFL
DO
PETYA-I FFL
PETYA-I FFL
PETYA-I
FFL
-
Z SSAG*
YD
ZSSAG*
Z SSAG
YD
ZSSAG*
Z SSAG
YD
Z SSAG*
Z SSAG
YD
ZSSAG*
Z SSAG
YD
ZSSAG*
Z SSAG
YD
ZSSAG*
Z SSAG
YD
Z SSAG*
Z SSAG
YD
Z SSAG*
Z SSAG
Z SSAG
21
I DO
2RSBs
2RSBs
22
RS
2RSBs
2RSBs
100
2RSBs
2RSBs
2RSBs
2 RSBs.
124 YRSN
PM
Bs
2
Y SSBN
ZEYA YRSN
Y SSBN
ZEYA YRSN
Y SSBN
ZEYA YRSN
Y SSBN
ZEYAYRSN
Y SSBN
ZEYAYRSN
Y SSBN
ZEYAY
RSN
Y SSBN
ZEYAYRSN
Y SSBN
ZEYAYRSN
-
23
'DO
2 b
2 bar
es
24
2 barges
2 barges
2 barges
IDO
2barges
2barges
2barges
2 barges
arges
g
bl
C
b
Cable barge
Cable barge
Cable barge
Cable barge
Cable barge
Cable ba
rge
Cable barge
Cable barge
a
e
arge
Pet rovka
Nuclear
Sup Fac
IDO
Key Co nyrrrbvit
NC -ror covered
cc --cloud covered
HA -haze
IDP-rdenidreation Only
' Sonar conversion with training tower mod 1 Both submersibles in the well
Trerning device on quay ++ Lowered ~n degaussing area
Y SSBN moved into covered bldg art Covered blast deflectors
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Top Secret RUFF
impossible to determine.
17. (TSR) Between a Y SSBN arrived at RP 1. Between
it either moved to RP 3 or left the yard. If this Y SSBN left the yard between
the one at RP 3 on was a new arrival. The exact events are
were in the reactor/machinery spaces. Between a work platform
surrounded the opening. This unit is probably in the yard or a major overhaul.
18. (TSR) Although there was transverser carriage activity between early December 1977
and early January 1978 while the two Y SSBNs were on the shelf, it is unlikely that either unit
went into or came out of the repair hall. Usually a unit is opened and decontaminated prior to
major overhaul, which was not done with either of these units. Additionally, a unit usually goes
into a covered repair facility if it is undergoing a major overhaul. The Y SSBN which went into
the hall in May 1977 could not have completed an overhaul recore/refueling operation in that
short a time frame.
19. (TSR) Overhaul/modification work continued on E-II SSGNs. Three E-II SSGNs were
on the repairways through the E-II which had been at RP 15 was
moved to RP 22, robably or post-overhaul workup. This submarine remained at RP 22 through
On an E-II SSGN was observed at the degaussing area (RP
24) although RP 22 was cloud covered, this was probably the same submarine. By
the submarine was being repositioned at RP 22 and had temporary covers over the blast
deflectors (Figure 5) which are possibly used during degaussing. This submarine left Petrovka
between The E-II SSGN at RP 14 remained there throughout the reporting
period. By the missile tubes were being retrofitted. The third E-II SSGN was
moved from RP 16 to HP 15 between Its sail had been removed, and
overhaul/modification work was underway.
20. (TSR) Two V-I SSNs were present during the reporting period. The first one had
arrived at RP 22 by The hull was opened in the area of the reactor and
machinery spaces, and a work platform surrounded the opening. By the pressure hull
appeared to have been closed, and the submarine left Petrovka between
The second V-I SSN arrived at RP 5 by transfer dollies for this
submarine were in position on the basin shelf, and by the submarine had been
moved to the repairway at RP 16 where it remained during the rest of the reporting period. No
major overhaul work was observed on this unit.
21. (TSR) Although N SSNs were present at various times, no obvious external work was
performed on any of these during this reporting period.
22. (TSR) The I-class SSAG (auxiliary submarine formerly 199D, was in the ARD(T) at
RP 1 from through0 By this unit was at the fitting-out pier,
RP 3, with one submersible alongside. By it had departed the shipyard. The
training device associated with the I SSAG remained on the quay at RP 4 through
The trai bsequently seen at Vladivostok Submarine Base Ulisa Bay (BE
23. (TSR) The modification of Z-class SS to SSAG continued. The first unit remained at
Petrovka throughout the reporting period and is presently outboard of the other Z SSAG at RP
20. The second unit, on which modification started in December 1975, had its bulbous bow
removed in 1976. The pieces from the bow have remained in the yard behind the re airwa s.
Training tower modifications to this Z SS continued through
it had been launched and has continued its post-modification workup inboard of the first Z
SSAG at RP 20. A Z-V SS (converted fleet ballistic missile submarine--SSB) arrived at Pe-
trovka by the Z-V SS was being positioned in the basin, and
by it was on the repairway at RP 13, where the two previous Z-class SSs had been
modified. No modification work has begun on this unit.
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Other Activity
24. (TSR) By 0 an export Petya-I small frigate (FFL), previously on the
repairway at RP 17, was moved to RP 20 where it has remained. The construction of pier
sections has continued at RP 17. Two pier sections were launched by and a
third pier section was launched by 0 Between the three
sections were taken from Petrovka and were next seen at Vladivostok Shipyard Ulis
two rectangular support barges (RSBs) were put on the new open
repairway at RP 8. This was the first time this repairway had been used. These barges have
been at this position through the remainder of the reporting period.
MAPS OR CHARTS
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SAC. US Air Target Chart, Series 200, Sheet 0291-6, scale 1:200,000 (UNCLASSIFIED)
DOCUMENTS
1. NPIC.~RCA-09/0008/77, P trouka Naval Base and Shipyard (Shipyard Activities, July 1974--
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November 1976), May 77 (TOP SECRET
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2. NPIC. RCA-09/0008/78, Komsomolsk Shipyard Amur 199 (Shipyard Activities,
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Apr 78 (TOP SECRET
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RELATED DOCUMENT
NPIC.
RCA-09/0015/74 Petrouka Naval Base and Shipyard (Shipyard Activities, April-June
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1974), Sep 74
SECRET
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REQUIREMENT
COMIREX J01
Project 280059DJ
(S) Comments and queries regarding this report are welcome. They may be directed to Soviet
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Strategic Forces Division, Imagery Exploitation Group, NPIC,
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