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Volume3
Issue
2?
CONTENTS
Nuclear
Attack
Sutimarines
'Valianf
ud'Churchill'
class
SSNs
'Swiftsue'class
SSN
'Trafalgu'class
SSN
The
Sinking
of
the
BelE
ano
522
522
523
Consultant
Editor:
Major
General
Sir
Jeremy Moore
KCB OBE MG,
Comman-
der
of
British
Land
Forces
during
the
Falklands campaign.
524
526
526
'Skipjack'clus
SSN
'Tluesher'
class
(later'Permit'
class)
SSN
MACHINE
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'Stugeon'class
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Submuines
in
Action
'Narnrhal'
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class
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furgeles'
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527
528
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538
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'Chulie
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Soviet
Attack Snbmuines Methods
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Tactics
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SSNs
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and'Alpha
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Armed
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Picture
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NarTruS
Cover
photograllhj
-S
l;:'.-
salr
-:
l;ir
:
-
-
5*l
:r-
-
5Ar
la-
COyCOL 524: COL 526:
US
NavyruS
Na!T.
527:
US
\?
,l
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:
I
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S&
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:
;:r
5&
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532: JS
\arryruS
Na!T.
533:
US
Na!T.
534;
US
Nall
535:
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Ecert
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53!t:USNavyruS NaW.
540:
US
Navy.
(iii!
of
World
tlfu
I
NuclecrAffclck
Submqrines
At
this
moment, beneath the
sufiace of
the
ocean,
a
potentially
deadly
game
of
cat andmouse
isbeingplayed
between Soviet
and
NATO subnarinerc.
The prime tool
of
thefu
tnde
is
the modern
nuclear attack
and,
htnter-killer
submarine,
packed
with
weaponry
.tnd sensots
and
capable
of
operating
at
greater
speeds and
depths
than
ever before
,
The
development
of the
modern
nuclear
attack submanne
started
around
the same
time,
in the
late
1940s,
rn
both the
United
States
and the
Soviet Union. Since then
the two
countries have
developed
therr own
characteristrc
designs,
withthe
United
States
concentratingon
the
ASW-
orrentated
boat
(SSN)
armed
with
torpedo tube-launched
weapons,
whrlst
the
Soviets
have also
developed
these
craft
and others
(SSGN)
specrfrcally designed
to
carry
large anti-ship cruise missiles, However,
since
the
development
of
the Sub-Harpoon and Tomahawk
underwater-
launched missile
systems
for antr-ship and land attack roles,
the
Amer-
ican
boats
are gradually
assuminq a
multi
mission capability,
The
Soviets
are
also
expected to
move
in
thrs
direction when their
SS-NX-Z1
torpedo
tube-launched nuclear cruise
missrle
enters service
iater in
the decade,
although
they
wr1l
still be
buildrng the
specrahst
cruise
missile-carrying
boats such
as
the
'Oscar' class,
the
underwater
equivalent
to
the 'Kirov'
class
battle-crursers, Currently
the Soviets have
five
nuclear-powered
attack submarine
classes
under construction:
the
'Charlie
III
SSGN 'Oscar'
SSGN,
'Alpha
I'
SSN,
'Victor
III
SSN
and,
the
newest,
the
'A1pha
II
SSN In
comparison
the
Americans
Brltish and
French
have in
constructron
only
one
SSN
class
apiece,
The
Sovrets
add
between
four and six boats
of
these
five
types
to
their fleet per
year,
with
each
class usually undergotng
periodic
up^dates
to its
systems and
USSJacksonville is one
of the 'Los
Ange/es'
c/ass
a
ttack
su
bm ar
ines
that
are destined
to
sewewith
the
US
Navy
into
the
2lst
century
as
the
primary
underwater
ASW
platform.
They
carry
Mk
48
torpedoes,
Harpoon and
TomahawkSSMs
and
will
be
fitted for
the
ASWSOW
(ASW
Stand-Off Weapon)
system
to
replace
their
SUBROC
missiles.
armament
during
its
lifetrme,
The
French
and Brltrsh boais
:
t
:
_
,.
:-
-,
=
for ASW work,
whilst recently
confirmed reports rndrca.e
.:.
=i--.=
.
-,
ple's Republic
of China
has
six
or
so
nuclear
powered
a::al:,:
:
_:
:
-
service,
The
first
was
built
in
1973-4,
and
is
IOO
m
(328
l:)
-::-=:
.'-,
_-.
.
Albacore
type
hult for
fast
underwater speeds,
Known
as
th:
_
_=:.
.....
this model
is
expected to prohferate over the next fev,--,-==:.
_
-=-
nations, tncludrng
Argentina and
Brazil,
are
known to
be _:-:::=-
=:
acquiring nuclear
submarines.
The maln advantages
of
the
nuclear attack submanne
ar.
-
:
:__.-,.
remain submerged
for
vrrtually unllmited periods,
its
deep-i_',.:-:
.
.',
.
brlity,
the sophistrcated
long-range
sensor systems
that
it
carr-::
:,-.
--
.
.-
hrgh
power
output
of its reactor
that
can be
translated
in::-.-=:--:
-
underwater
speeds,
All
of
these can
be
utrlized
to the
iu- _::.--.:_.
submarine
warfare. In the
ocean
environment
rn
which
::es:
.
_:.'--
killer
submarines spend
most
of
their
lives,
there
is nothinQr
r:
.:.:
.=-
r
I
-:
world
that can match them
for guile
and
potential
destruc."-.-=-.=..
Navy's'Swiftsure'
class submarine
HMS Sovereigm on
f.he
su:-,:::
amidst
ice-floes
during her
I 97
6
visit to
the
N
orth pole.
As
the
ice
ca
D
rs
:
relatively
safe
place to operate a
ballistic
missile
boat,
more
and
more
anti-submarine patrols
are
spent in
Arctic
waters.
The
Royal
'l;F;.''
i::i:,:::
fj::-:
F:::=
l::tl':
f:::-::::
>K
!Va[ant'
and'Churchill'
class
SSNs
ciil
that tested
the
Sub-Harpoon
for
the
Royal Navy,
During the
1982
Falk-
lands
war
the
Conqueror, Courageous
102)
Essentially
an
enlarged'Dreadnought'
plant
and systems, HMS
Vafiant
(S
class
design
with
all-British reactor
was
ordered
in Augmst
1960 as
the
lead
and Valiant
were
deployed
to
the
GenerarJ
boat
of
the
'Valiant' class
and
com-
pleted
in July
1966,
a
year
later
than
Maritime Exclusion
Zone, the first
sink-
planned
because
of
the priority
ing
the
Argentinian
cruiser
accorded to the Bdtish
Polaris
prog-
ramme. Her sistership HMS
l,Tarspile
(S i03) was followed
by
three
others
built
to
a
modifled design
as'Churchill'
48)
and
HMS
Courageous
(S
50),
and
class boats. These
three are
HMS
Churchil|
(S
46), HMS
Conqueror
(S
are believed to
be
slightly quieter in
service, having
beneflted
from the ex-
perience
gained in operating the ear-
lier
boats,
All
are
fitted with the
TYpe
2001
long-range actrve/passive
i,F
so-
Belgrano on
2
May
1982,
All
five
ves-
sels are due to remain in
service until
the mid- to
late-1990s,
and
are
in-
creasingly beinq employed
in the
anti-
surface ship
role
as
quieter
boats
enter
servlce,
Specification
'Valiant'
and'Churchill'
classes
Displacement:
4,400
tons
surfaced and
4,900
tons
dived
nar
mounted
in the
'chin'
position,
though the three
boats
will
be retrofit-
ted with the
TYpe
2020
set as
a
re-
Dimensions: length
86,9
m
(2BS
ft 0
in);
beam
i0,
1
m
(33 ft 3
in);
draught
8,2
m
(27 ft 0
in)
Machinery:
one
pressunzed-water
reactor powertnq
tvvo
steam
turbines
placement during future overhauls
It
is also
reported
that the five
boats
can
be fitted with
a
LF
clip-on towed
array
since
identified
as
the
Type
2024
sonar
system, Other
sonars
identified
with
the craft are the Type
2007
long-range
passive
set
and
the
joint Anglo-Dutch-
driving
one shaft
Speed:
20
k1s
swfaced
and
29
kts
dived
Divingdepth:300
m
(985
ft)
operatlonal
and
500
m
(1,640
ft)
Torpedotubes:
sx
533-mm
(2i-in) bow
Basicload:
amxof
32
MkB
andMk24
Tlgerfish
533-mm (21-in)
torpedoes
or
64
Mk
5
Stonefish and
Mk
6
Sea
Urchin
mines; this
is
being changed
to
26
533-
mm
(2l-in) torpedoesandsx
Sub-
Harpoon
anti-shrp
missiles
maxlmr.rm
French Type
2019 Passive/Active
Range
and
Intercept
Sonar (PARIS),
A
TYpe
197
passive rangdng sonar for
de-
tecting
sonar
transmissions
is
also
car-
ried.
When the
boats
were built
the
main
armament comprtsed
the
pre-
World War
II
Mk
B
anti-ship torpedo,
the
1950s
technology
wire-quided Mk
23
ASW torpedo and
World
War II
Mk
5 ground and
Mk
6
moored
mines,
Since
then the
armament has
been
modernzed to include the
Mk
8, the
Mk
24
Tigerfish vrrre-gnrided dual-role
torpedo,
the
Sub-Harpoon
anti-shtp
missile and the new
Stonefish
and
Sea
Urchin ground mines,
It was
theChur-
Missiles:none
Electronics:
one
Type
1006
surface-
search radar,
one
Type
200
I sonar,
one
lYpe
2024
towed
sonar, one
TlPe
2007
sonar, one
Type
2019
sonar,
one
Type
197
sonar, one
drection-findtng
antenna, one
ESMsystem,
one
DCB
torpedo fire-control
system, and one
underwater telephone
Complement:
103
Essentially
an
enlarged
version of the
'
D
r
e a
d
nou
g
h
t'
desbn,
^FIMS
Valiant
was
built
at
the same
time
as
the
Polaris
boats
with
an all-British
PWR
l
reactor
plant
and
associated
control
sysfems.
Below: Destined to remain
in service
until
the
mid
to
late
1990s, the
five
Taliant'
and 'Churchill'
class
vessels
are
undergoing modernization refits
as they
come
in
for
overhauls.
_s
t,
f
iwiftsure'class
SSN
'Swiftsure'
class have
proved
to
be
ex
cellent
ASW
pl
a
ttom
s
in
s
ewice.
The
sonar
fit is being
uwraded
and
Quieter than
their
predecessors, the
In
]97i
the first
of
the
UK's 'Swiftsure'
class second-generation
SSNs was
launched
at
Vickers Shipyard at
Bar-
row-rn-Furness. Called
HMS
Smffsure
(S
126),
the
boat
introduced
a shorter
and
fuller
hull-form than that
of
the
'Valiant' class in
order
to
qive
a
gEeater
rnternal volume and
a
stronqer press-
ure hull. Hence it
can
operate
at
grea-
ter
depths and speeds
than
the
Pre-
vrous
class. The
fin
is
smaller
and the
retractable drving
planes
are
located
below the water line,
The
Swiftsure
was
followed
by five sister
ships, HMS
Sovereign
(S
108)
HMS
^Superb
(S
109),
HMS
Scepfre
(S
104),
HMS
SPar-
tan
(S
i05) and
HMS
Spiendid
(S
106);
the class
rs
currently
used both
in
the
ASW
screeninqr
role for
task
forces,
and in the independent
anti-ship and
ASW
roles
because
of the
quieter
machinery used, The
sonar
fit
is
the
will eventually include
the
Wpe
2046
towed array as successor
to
theType
2024.
To
match
the
detection ranges
of
the sonars all Royal
NavY
submarines
will
carry
the
Marconi
S
pearfish
heavfiveight
torpedo.
522
'Swiftsure' class
SSN
(continued)
same
as
in the 'Valiant' class, but all
will
have the
Tlpe
2020
fitted
as
the Type
2001
replacement during normal
refits.
The
armament
is
reduced
by
one
tube
Speed:
20
kts
surfaced
and
30
kts
Nuclear
Attack
Submarines
dived
Divins depth:
400 m
(
1,315
ft)
operationaland600
m
(1,970
ft)
maxlmuln
Torpedo
tubes: five 533-mm
(2
l-rn)
and
seven
torpedoes, but
this
reduc-
tion
is
balanced by
the fact that it
takes
only
15
seconds
to
reload individual
tubes,
Emerqency power
is
provided
bow
Basic load:
20
Mk
B
or
Mk
24
Tigerfish
533-mm
(2i-in)
torpedoesplus five
Sub-Harpoon anti-ship
mlssiles, or
50
MkS
Stonefish
andMk
6
Sea
Urchrn
Sovereign demonstrated
the
by
the same
ll2-cell
electric
battery
and
associated
diesel generator
and
electric
motor
as
fitted in the
'Valiant'
and
'Churchill'
classes.
In
1976
the
Navy's
abilrty
to conduct
ttons
under the
lce
pack when
she
undertook
a
trip
to the North
Pole,
the
operational aspects
being
combined
with a
successful
scientific
voyage,
Royal
ASW
opera-
mmes
Missiles:none
Electronics:oneTlpe
i006surface-
search
radar,
one T\rpe
200
I
sonar,
one
Type
2024
towed
sonar, one
Type
2007
sonar, one T\rpe
2019
sonar,
one
Type
197
sonar, one
ESMsystem, one
DCB
torpedo
and mrssile
fire-control
system, and one
underwater
involved in the
Falklands war,
The Spartan and Splendrd
were
both
Specification
Swiftswe'class
Displacement:
4,200 tons
surfaced and
4,500 tons
telephone
Complement:97
To
dived
improveunderwater
Dimeruions: length
82.9
m
(272 ft 0
in);
beam LB
m
(32 ft 3
in);
draught
8.2
m
(27 ft 0
in)
Machinery:
one
pressurzed-water
reactor powedng
two steam
turbines
driving
one shaft
pertormance,
HMS
Swift
sure
was
intoduced
into service with
a
shorter
and
fuller
hull
form.This
gives
greater internalvolume
and
a
sfrongrerpressure huII
than
earlier
boats.
ffi
sigm,
iirafalgrar'
classssN
thermal rmagery periscope
js
now
car-
ried
as
part
of
the search and
attack
penscope
fit,
and T\rpe
197
sonar is no
longer
carried.
The fin,
like
those
of
the earller
British
SSN classes,
also
houses
an
SHF
DF
antenna, several
comrnunications antennae, a snort in-
duction mast,
radar
masts
and
ESM
Essentially
an
improved
'Swr-ftsure'
de-
the'Trafalgar'
class
constihrtes
the
third
generation of British
SSNs
to
be buiit
at
Vickers Shipyard
in
Barrow-
in-Fumess.
The
lead
boat, HMS
TraIal-
EIar
(S I07), was
laurched
in
IgBl
and
commissioned
into the
Royal Navy
in
March
1983,
serving
v'nth
the
'Swift-
sure'
class boats
at
the Devonport nav-
al
base.
A
class
total
of at least six is
expected
with five
(HMS
Turbulent,
the
'Swiftsure' class boats, although
a
Machinery:
one
pressurized-water
reactorpowering
two steam
turbines
driving
one
sha-ft
with
pump-jet
propulsion
Speed:
20
kts
surfaced
and
29
kts
dived
less and
HMS Torbay) already
on
HMS
Ta1enl,
HMS Taclrcr'an, HMS
Tre-
masts.
Underwater
communications
are believed to
be
conducted
via
a
towed
buoy and/or
a
floating
antenna,
The
primary
mission of
the
'Trafalgar'
class boats
rs
ASW,
with
a
secondary
anti-ship role.
Diving depth:
400
m
(
1,3
15
ft)
operational
and
600
m
(1,970
ft)
maxlmum
Torpedotubes: five
533-mm
(2l-in)
533-mm
(2
I
-in)
torpedoes
and
five
Sub-Harpoon anti-ship missiles
or
3-
Mk5
Stonefishand
MkO
SeaUrchrr
mines
Missiles:none
Electronics:
one
Tlpe
1006
surfae
searchradar,
one
Tlpe
2020
sonar
one
Type
2024
towedsona-r, one
Type
2007sonar, one
Type
2019
sonar.
one
ESM
system, and one DCB
torpedc
and
missile fire-control system
bow
Basic load:
20
Mk
B
and
Mk
24
Tigerfish
Complement:97
order. The major improvements over
the
'Swiftsure' class
include
several
features
to
reduce
the
underwater
radiated
noise.
These compnse
a
new
reactor
system, a
pump-jet
propulsion
system
rather
than
a
conventional
propeller and the
covering
of
the
pressure hull and outer
surfaces
with
anechoic tiles
to
gdve
the same
type
of
protection as afforded
by
the
Soviet
Specification
5,200
tons
'Trafalga/
class
Displacement:
4,700 tons
surfaced and
dived
'Clusterguard' coating
in
reducing
Dimensiors:
lengrth 85.4
m
(280 ft 3 rn);
beam
9,8
m
(32
ft
3
in);
draught
8.2
m
(27 ft 0
in)
Right: Similar in
many
respects to
the
'Swiftsure'
class,flMS
Trafalgrar is
llre
first
Royal
N
avy
submarine
to
be
covered with
anechoic tiles
that
teduced
undernvater
radia
ted noise.
Below
:
With HMS
lllustrious
rh
lie
background,
HMS
Trafalgar
enfers
DevonportNavalBase
to
tie up
at
the
2
nd
S
ubm
arine
S
quadron
berth.
noise. The Trafalgar
ts
the first boat
to
be fitted with the
Tlpe
2020
sonar,
and
is
berng used
as
the development test
piatform for
the system.
According
to
other reports there
has also
been
an
internal compartment rearrangement
to
rationalize
and
centralize
the
opera-
tions,
sound
and
ESlv7radar
rooms.
The
remaining
systerns,
the armament
and the sonars
are
the
Same
as
fitted
to
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