Udaloy class

Origin: USSR
Type: Destroyer (DDG)
Built: 1978-1986
Class: 8 in service; 1 building
Displacement: 6,500 tons standard;
7,900 tons full load
Dimensions: Length 531.4ft (162m)
oa; beam 63.3ft (19.3m); draught 20.3ft (6.2m)
Propulsion: 2-shaft COGOG ( 4
gas-turbines), 120,000shp total
Performance: Speed 35knots; range
2,500nm at 32 knots, 5,000nm at 20 knots
Weapons: SSM: 2 x 4 SS-N-14
launchers SAM: 8 SA-N-9 PDMS launchers (64 missiles)
Guns:
2 x 1 100mm; 4 ADMG 630 30mm Gatling CIWS
Torpedo tubes: 2 x 4 533mm M-57
ASW weapons: 2 12-barrel RBU6000
Mines: Mine rails fitted
Aircraft: 2 Ka-25 Helix-A
helicopters
Sensors: Radar: 2 Strut Pair (1 Top
Plate from third ship) surveillance;
2
Eye Bowl missile control; Kite Screech (100mm) and 2 Bass Tilt (CIWS)
gun control; Palm Frond navigation
Sonar: LF active search in bow;
variable depth
The Udaloys are of
great interest because they are optimized for the ASW role and are
clearly intended to be the antisubmarine component of a mixed
battle-group centred on an aircraft carrier and operating at some
distance from its base, probably in the northern and central Atlantic
or Pacific Oceans.
The
ASW armament is exceptionally powerful: the standard quadruple
SS-N-14launchers abreast the bridge, two RBU-6000 rocket launchers and
two quadruple torpedo tubes amidships. The Udaloys also have two
separate hangars for their pairs of ASW helicopters and are the first
Soviet cruisers to be equipped to operate more than one aircraft, the
first four of the class operate Ka-25 Hormone-As, while the fifth and
subsequent ships operate the newer Ka-27 Helix. The landing platform is
large, but the hangar floor is one deck lower with a ramp for moving
the aircraft from one level to another.
The rake of the bow,
which is usually sharp, even by Soviet Navy standards, and the
positioning of the bow anchor indicate a particularly large low- or
medium frequency sonar dome fitted below, and this is confirmed by the
characteristics of the bow wave. There is a VDS at the stem, streamed
over the transom in line with current Soviet Navy practice.
Other weapons are
somewhat limited. The single 100mm dualpurpose guns in A and B
positions are proven guns, but it is a little surprising that the new
twin 130mm mounting is not fitted, as on the Sovremennyy class. There
are four 30mm Gatling CIWS, while air defence is provided by eight SAM
launchers for the new SA-N-9 PDMS set into the ship's structure, with
6ft (1.83m) diameter cover plates: four on the forecastle, two between
the torpedo tubes and two at the forward end of the after deckhouse.
Air and
surface surveillance radar antennas seem rather few by Soviet
standards. This could well be, however, because the Soviet electronic
designers have developed more sophisticated multipurpose systems, as
found in Western ships.
In view of the similarity in dimensions between this and the Sovremennyy
class, which appeared at the same time but optimized for the
surface warfare role, it is surprising that the two classes do not
share a common hull. This certainly would have been the case for most
Western navies, as, for example, in the French
Georges Leygues class, but the political and economic
restraints upon the Soviet Navy are much less severe and they have been
permitted to optimize the hull-form. The propulsion form is also
different, Sovremenny having steam turbines
and Udaloy gas turbines, the latter being particularly suitable for ASW.
These ships
are classified by the Soviets as Bolshoy protivolodochny korabl (large
ASW ships) and by NATO as DDGs, although their size suggests that the
description cruiser could be rather more appropriate.
These striking warships are being produced at Kaliningrad (Yantar
Works) and Leningrad (Zhdanov Works). Nine are definitely being
produced and it would appear possible that a total of as many as twelve
might be constructed. Such a building programmed, when added to all the
Soviet Navy's other construction activities, is indicative of the
enormous resources being devoted to expansion of the navy.
This 100 mm
water-cooled, fully automatic, dual-purpose single mount is operational
on Kirov (but not Frunze), the Udaloy class, and Krivak-II class frigates.
Rate
of fire is 80rds/min.
Vitse-Admiral Kulakov, second ship of the Udaloy class. The major
weapon systems are those devoted to ASW, comprising two Hormone-A or
Helix-A helicopters, eight (2x4) torpedo tubes and two 12-barrel
RBU-6000 rocket launchers. AA armament, basically a self-defence fit,
consists of eight SA-N-9 pop-up launchers (four on the foredeck, two
abaft the after stacks and two between the RBU-6000 ASW RLs and four
30mm Gatlings amidships. This picture shows the ship as she originally
appeared, with the SA-N-9 missile control radars missing
from the bridge and hangar roofs; these are only now being installed,
indicating a major delay in development. Surface armament is eight
SS-N-14 Iaunchers below the bridge and two 100 mm single DP guns. The
numerous separate sensors are actually fewer in number than in previous
Soviet ships. The empty platforms on the mainmast appear to have been
included in the design for additional equipment.
Kamov Ka-27 Helix-A ASW helicopter carries two torpedoes or depth
charges. Sensors include sonobuoys and dipping sonar. and may in due
course include MAD
Main on-board ASW weapon system for the Udaloy class are the
eight 2in(533mm)torpedo tubes carried in two banks of four. There are
also two RBU-6000 anti-submarine rocket lanchers.
Weapons
A SA-N-9pointdefence missile system
(PDMS) (2x1)
B SA-N-9PDMS(2x1)
C 100 mm/60Agun mounting(1x1)
D 100 mm/60Agun mounting(1x1)
E SS-N-14ASW missile launcher box
(2x4)
F ADMG-630CIWS (2x1)
G ADMG-630 30mm CIWS(2x1)
H TR 533mm M-57 torpedo tubes (2x4)
J SA-N-9PDMS(2x1)
K SA-N-9 PDMS (2x1)
L RBU-6000 ASW rocket launcher (2x12)
M Kamov Ka-32 Helix-A ASW helicopter
(2 carried)
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Electronics
1 LF hull-mounted sonar
2 DF loop
3 Eye Bowl missile control radar
for SS-N-14(2x1)
4 Missile control radar for
SA-N-9(NATO designation unknown
5 Kite Screech fire control radar
for 100 mm guns
6 DFloop
7 Palm Frond navigation radar
8 Palm Frond navigation radar (2x1 )
9 Round House Tacan antenna(2x1)
10 Top Plate surveillance radar
11 High Pole IFF antenna
12 Salt Pot ECM antenna (2x1)
13 BassTiltfirecontrol radar for
ADMG-630 (2x1)
14 Missile control radar for
SA-N-9(NATO designation unknown)
15 Fly Screen-B helicopter approach
control radar
16 Variable depth sonar housing
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