Mansfield 1915
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Murray | HA4, H86, D33 | Palmers, Jarrow | 1913 | 6.8.1914 | 12.1914 | sold 5.1921 | |
| Myngs | HA5, H87, D41 | Palmers, Jarrow | 1913 | 24.9.1914 | 2.1915 | sold 5.1921 | |
| Matchless | H4A, H73, D47 | Swan Hunter, Wallsend | 1913 | 5.10.1914 | 12.1914 | sold 10.1921 | |
| Milne | H8A, H80, D12 | John Brown, Clydebank | 1913 | 5.10.1914 | 12.1914 | sold 9.1921 | |
| Morris | AH3, H85, D35 | John Brown, Clydebank | 1913 | 19.11.1914 | 12.1914 | sold 11.1921 | |
| Moorsom | HA2, H84, D27 | John Brown, Clydebank | 1913 | 20.12.1914 | 2.1915 | sold 11.1921 | |
| Hawthorn Leslie 'specials' | |||||||
| Mentor | H6A, H77, D54 | 468 | Hawthorn Leslie, Hebburn | 1913 | 21.8.1914 | 1915 | sold 5.1921 |
| Mansfield | H1A, H70, D37 | 469 | Hawthorn Leslie, Hebburn | 1913 | 3.12.1914 | 1915 | sold 10.1921 |
| Thornycroft 'specials' | |||||||
| Meteor | H7A, H78, D84 | 696 | Thornycroft, Woolston | 1913 | 24.7.1914 | 9.1914 | sold 5.1921 |
| Mastiff | H3A, H72, D66 | 697 | Thornycroft, Woolston | 1913 | 5.9.1914 | 11.1914 | sold 5.1921 |
| Yarrow 'specials' | |||||||
| Miranda | HA0, H83, D24 | Yarrow, Scotstoun | 1912 | 27.5.1914 | 8.1914 | sold 10.1921 | |
| Minos | H9A, H81 | Yarrow, Scotstoun | 1912 | 6.8.1914 | 10.1914 | sold 8.1920 | |
| Manly | H0A, H69, D20 | Yarrow, Scotstoun | 1913 | 12.10.1914 | 12.1914 | sold 10.1921 | |
|
Displacement normal, t |
Murray, Myngs, Matchless, Milne, Morris, Moorsom: 900 Mentor, Mansfield: 1055 Meteor, Mastiff: 980 Miranda, Minos, Manly: 850 |
|
Displacement full, t |
Murray, Myngs, Matchless, Milne, Morris, Moorsom: 1100 Miranda, Minos, Manly: 990 |
|
Length, m |
Murray, Myngs, Matchless, Milne, Morris, Moorsom: 83.3 Mentor, Mansfield: 82.8 Meteor, Mastiff: 83.6 Miranda, Minos, Manly: 82.1 |
|
Breadth, m |
Murray, Myngs, Matchless, Milne, Morris, Moorsom: 8.15 Mentor, Mansfield: 8.23 Meteor, Mastiff: 8.31 Miranda, Minos, Manly: 7.81 |
|
Draught, m |
Murray, Myngs, Matchless, Milne, Morris, Moorsom: 2.59 Mentor, Mansfield: 3.20 Meteor, Mastiff: 3.05 Miranda, Minos, Manly: 2.90 |
|
No of shafts |
Murray, Myngs, Matchless, Milne, Morris, Moorsom: 3 Mentor, Mansfield, Meteor, Mastiff, Miranda, Minos, Manly: 2 |
|
Machinery |
Murray, Myngs, Matchless: 3 Parsons steam turbines, 4 Yarrow boilers Milne, Morris, Moorsom: 3 Brown-Curtis steam turbines, 4 Yarrow boilers Mentor, Mansfield, Meteor, Mastiff: 2 sets Parsons independent reduction steam turbines, 4 Yarrow boilers Miranda, Minos, Manly: 2 Brown-Curtis steam turbines, 3 Yarrow boilers |
|
Power, h. p. |
Murray, Myngs, Matchless, Milne, Morris, Moorsom: 25000 Mentor, Mansfield: 27000 Meteor, Mastiff: 26500 Miranda, Minos, Manly: 23000 |
|
Max speed, kts |
Murray, Myngs, Matchless, Milne, Morris, Moorsom: 34 Mentor, Mansfield, Meteor, Mastiff, Miranda, Minos, Manly: 35 |
|
Fuel, t |
oil 278 |
| Endurance, nm(kts) | |
|
Armament |
3 x 1 - 102/40 QF Mk IV, 2 x 1 - 40/39 2pdr QF Mk II, 2 x 2 - 533 TT (4), 4 Elia Mk IV mines |
|
Complement |
Murray, Myngs, Matchless, Milne, Morris, Moorsom: 80 Mentor, Mansfield: 76 Meteor, Mastiff: 82 Miranda, Minos, Manly: 79 |
Project history:
The boats of the 1913-14 Programme were improved 'L's, wilh 6kts
more speed, at the insistence of the new First Lord of the
Admiralty, Winston Chutthill. For the first time speed
of delivery was all-important, as the Admiralty clearly recognised that
war was imminent, and Thornycroft, White and Yarrow were asked to accept two
orders each, with the first payment to be made in April 1913, before contracts
were signed (delivery was to
be in March 1914). Thus when in March 1913 the Controller issued invitations to
tender, the three boats building at Thornycroft and the two each at Yarrow and
Hawthorn Leslie were 'bought' as if they had been built on speculation. Two
orders planned for J S White were not placed, however,
and Thornycroft were given a third order. Geared turbines were favoured, but the
E-in-C wished to wait until the trials results with
Leonidas and Lucifer were available
before making the switch to the 'all-geared' type. Similarly longitudinal
framing would be examined after Ardent had
finished her trials.
Excluding the seven 'stock' boats
already building, the final order was for only six,
three from John Brown, two from Palmer and one from Swan Hunter, making 13
instead of the normal 20 for a full flotilla. The reason was that money for the
Arethusa class light cruisers had used up funds
in the current Estimates - a decision which was
justified on the dubious grounds that they would take
over many of the duties of destroyers. The lead boat,
Miranda was begun in October 1912 and completed in August 1914, followed by her
sisters in October-November. She made 33kts in deep load condition, whereas
Minos in light condition made 36kts on a 6-hour
trial. The 'M' class were generally similar to the 'L' class in appearance, but
with the midships gun on the
deck, not on a 'bandstand' platform. The Yarrow boats had two funnels and the
bridge carried well back from the forecastle. The Hawthorn Leslie boats had four
funnels. The Admiralty boats had short funnels, and
the Thornycroft boats could be distinguished by three taller flat-sided funnels.
The design proved most successful and, with only slight modifications, was used
for mass-production in the war which followed.
Marksman, Menace and Monitor were projected for the 1914-15 Programme but were cancelled in favour of two Lightfoot class leaders.
Modernizations: 1917, Meteor: - 1 x 1 - 102/40, 2 x 2 - 533 TT; + 60 mines
Naval service: No significant events.
Mastiff
Myngs
Mansfield
Meteor
Miranda
© Navypedia, 2020