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Warships

Volume 494: debated on Monday 22 June 2009

To ask the Secretary of State for Defence how many months and what percentage time each Royal Navy (a) attack submarine, (b) destroyer and (c) aircraft carrier in service spent (i) on operations and (ii) in maintenance in each year since 2006. (280824)

The following figures are approximate because records held centrally do not always distinguish precisely between routine maintenance and other time spent alongside, since the two activities are often intermixed.

Attack submarines

2006

2007

2008

Months

Percentage

Months

Percentage

Months

Percentage

Vessel

OP

MAIN

OP

MAIN

OP

MAIN

OP

MAIN

OP

MAIN

OP

MAIN

Superb

4

6

30

47

1

8

10

64

2

5

17

21

Sceptre

1

7

6

60

7

2

55

13

1

10

5

73

Trafalgar

6

5

45

42

0

10

0

81

7

2

52

11

Turbulent

5

3

42

24

2

7

12

57

0

10

0

73

Tireless

2

6

14

45

5

4

41

29

3

8

25

64

Torbay

7

2

60

13

0

11

0

92

3

4

21

35

Trenchant

0

12

0

100

5

3

39

26

7

2

50

14

Talent

0

10

0

78

5

3

39

22

7

2

52

14

Triumph

0

12

0

100

0

12

0

100

0

12

0

100

Destroyers

2006

2007

2008

Months

Percentage

Months

Percentage

Months

Percentage

Vessel

OP

MAIN

OP

MAIN

OP

MAIN

OP

MAIN

OP

MAIN

OP

MAIN

Edinburgh

7

2

58

17

6

3

50

25

8

2

67

17

Gloucester

6

2

50

17

1

9

8

75

6

2

50

17

Manchester

0

7

0

58

7

4

58

33

8

1

67

8

York

8

3

67

25

4

2

33

17

0

12

0

100

Liverpool

7

3

58

25

1

7

8

58

9

1

75

8

Exeter

4

3

33

25

4

1

33

8

4

1

33

8

Nottingham

8

3

67

25

5

4

42

33

4

0

33

0

Southampton

7

3

58

25

7

2

58

17

2

2

17

17

Aircraft carriers

2006

2007

2008

Months

Percentage

Months

Percentage

Months

Percentage

Vessel

OP

MAIN

OP

MAIN

OP

MAIN

OP

MAIN

OP

MAIN

OP

MAIN

Illustrious

5

5

37

15

5

3

42

25

6

4

50

33

Ark Royal

0

9

0

66

3

1

25

8

7

4

58

33

HMS Invincible is at low readiness.

Time not accounted for under operations and maintenance include periods of basic sea training, post refit trials, periods of extended leave and other duties such as conducting ammunitioning and storing whilst in port.

To ask the Secretary of State for Defence how many Royal Navy ships are planned to carry a full anti-submarine warfare capability in (a) five and (b) 10 years' time; and which ships carry such a capability at present. (281404)

Most Royal Navy warships possess an anti-submarine capability, which will often be enhanced with an embarked helicopter. In addition, eight of the Type 23 frigates currently in service are equipped to provide a specialist anti-submarine warfare capability and they will continue to do so until replaced by the Future Surface Combatant (FSC). The precise dates of the progressive replacement of Type 23s by the FSC have not yet been determined.