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fighting ships of the world

ROYAL NAVY (UNITED KINGDOM)

ESCORTS

GRIMSBY sloops (1934 - 1940)

Wellington 1939

Swan 1940

Name No Yard No Builder Laid down Launched Comp Fate
RN
Aberdeen L97 - U97   Devonport DYd 6/1935 22/1/1936 9/1936 sold 12/1948
Deptford L53 - U53   Chatham DYd 4/1934 5/2/1935 8/1935 sold 3/1948
Fleetwood L47 - U47 - F47   Devonport DYd 8/1935 24/3/1936 11/1936 test ship 1947
Grimsby L16 - U16   Devonport DYd 1/1933 19/7/1933 5/1934 sunk 25/5/1941
Leith L36 - U36   Devonport DYd 2/1933 9/9/1933 7/1934 sold 1946, to Denmark 8/1949 (Galathea)
Londonderry L76 - U76   Devonport DYd 6/1934 16/1/1935 9/1935 sold 3/1946
Lowestoft L59 - U59   Devonport DYd 8/1933 11/4/1934 11/1934 sold 10/1946
Wellington L65 - U65   Devonport DYd 9/1933 29/5/1934 1/1935 HQ ship Master Mariners 2/1947
RAN, 1st group
Yarra (RAN) L77 - U77 114 Cockatoo DYd, Australia 5/1934 28/3/1935 1/1936 sunk 4/3/1942
Swan (RAN) L74 - U74 - F74 115 Cockatoo DYd, Australia 5/1935 28/3/1936 1/1937 TS 1955, sold 6/1964
RAN, 2nd group
Parramatta (RAN) L44 - U44 131 Cockatoo DYd, Australia 11/1938 18/6/1939 4/1940 sunk 27/11/1941
Warrego (RAN) L73 - U73 - F312 132 Cockatoo DYd, Australia 5/1939 10/2/1940 8/1940 survey vessel 1955, BU 4/1965

 

Displacement standard, t

990

Australian ships: 1055 - 1070

Displacement full, t

1480 - 1510

Length, m

81.2

Breadth, m

11.0

Draught, m

3.02 - 3.07 deep load

No of shafts

2

Machinery

Parsons geared steam turbines, 2 Admiralty 3-drum boilers

Power, h. p.

2000

Parramatta, Warrego: 2200

Max speed, kn

16.5

Parramatta, Warrego: 16.85

Fuel, t

oil 347

Australian ships: oil 317

Endurance, nm(kts)

5350(15)

Armament

2 x 1 - 120/45 QF Mk IX, 1 x 1 - 76/45 20cwt QF Mk I/II/III/IV, 4 x 1 - 47/40 3pdr Hotchkiss Mk I, 1 x 4 - 12.7/62, 2 DCT, 1 DCR (15)

Aberdeen: 2 x 1 - 102/45 QF Mk V, 2 DCT, 1 DCR (15)

Swan, Yarra: 3 x 1 - 102/45 QF Mk V, 4 x 1 - 47/40 3pdr Hotchkiss Mk I, 2 DCT, 1 DCR (15)

Parramatta, Warrego: 1 x 2 - 102/45 QF Mk XVI, 1 x 1 - 102/45 QF Mk XVI, 1 x 4 - 12.7/62, 2 DCT, 1 DCR (15)

Fleetwood: 2 x 2 - 102/45 QF Mk XVI, 4 x 1 - 47/40 3pdr Hotchkiss Mk I, 1 x 4 - 12.7/62, 2 DCT, 1 DCR (15)

Sensors sonar

Complement

100

Ship project history: First six sloops were designed under 1931 (Grimsby and Leith), 1932 (Lowestoft and Wellington) and 1933 (Deptford and Londonderry) programs.

Unlike the ships of previous programs, Grimsby class sloops, first of all, intended for escort service and had no minesweeping equipment. Architecture of the hull and machinery as a whole repeated the previous designs, and changes concerned first of all armament. The artillery has been strengthened at the expense of transition from 102mm to 120mm guns. New guns were not DP, and ships were equipped with 76mm antiaircraft gun.

Aberdeen and Fleetwood were designed under the 1934 program. They were designed as previous Grimsby class, but being fitting out armament structure is changed. Single-purpose 120mm guns have replaced by 102mm DP guns: 4 single on Aberdeen (the place is provided, actually only two were installed, three since August, 1939), two twin on Fleetwood.

Australian sloops are created on the basis of Grimsby class design for RAN, but were a little bit larger. The second group had hardly more powerful machinery and on 0.35kts faster.

Modernizations: late 1935, Lowestoft: - 1 x 1 - 120/45

early 1937, Lowestoft: + 1 x 1 - 120/45 QF Mk IX

summer 1939, Grimsby, Londonderry, Lowestoft: - 2 x 1 - 120/45, 1 x 1 - 76/45; + 2 x 2 - 102/45 QF Mk XVI

8/1939, Aberdeen: + 1 x 1 - 102/45 QF Mk V

autumn 1939, Aberdeen and some others: + 1 x 4 - 12.7/62, DC stowage increased up to 40

autumn 1939, Grimsby, Lowestoft: can carry up to 40 mines

1941, Parramatta: - 1 x 1 - 102/45; + 1 x 2 - 102/45 QF Mk XVI

1941 - 1942, all survived: - 4 x 1 - 47/40; + 2 x 1 - 20/70 Oerlikon Mk II/IV

1943, Warrego: - 1 X 1 - 102/45; + 1 X 2 - 102/45 QF Mk XVI

1943, Deptford, Leith, Wellington: - 1 x 1 - 76/45; + 1 x 24 - 178 Hedgehog DCT

1943, Aberdeen: - 1 x 1 - 102/45; + 1 x 24 - 178 Hedgehog DCT

1943, Lowestoft, Fleetwood: + 1 x 24 - 178 Hedgehog DCT

1943 - 1944, all survived: - (1 - 2) x 4 - 12.7/62; + 2 x 1 - 20/70 Oerlikon Mk II/IV or 2 x 2 - 20/70 Oerlikon Mk II/IV, 2 DCT, 1 DCR, DC stowage rose up to 90

1944, Swan: - 3 x 1 - 102/45; + 2 x 2 - 102/45 QF Mk XVI

1/1946, Aberdeen: 2 x 1 - 102/45 HA Mk III, 2 x 2 - 20/70 Mk V, 2 x 1 - 20/70 Mk III, 1 x 24 - 178 Hedgehog ASWRL, 2 DCT, 1 DCR (15)

1/1946, Deptford, Leith, Wellington: 2 x 1 - 120/45 CP Mk XIV, 2 x 2 - 20/70 Mk V, 2 x 1 - 20/70 Mk III, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 2 DCR (90)

1/1946, Fleetwood: 2 x 2 - 102/45 Mk XIX, 2 x 2 - 20/70 Mk V, 2 x 1 - 20/70 Mk III, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 2 DCR (90)

1/1946, Londonderry: 2 x 2 - 102/45 Mk XIX, 2 x 2 - 20/70 Mk V, 2 x 1 - 20/70 Mk III, 4 DCT, 2 DCR (90)

1/1946, Fleetwood: 2 x 1 - 120/45 CP Mk XIV, 1 x 1 - 76/45 Mk II, 2 x 2 - 20/70 Mk V, 2 x 1 - 20/70 Mk III, 4 DCT, 2 DCR (90)

1/1946, Lowestoft: 2 x 2 - 102/45 Mk XIX, 2 x 2 - 20/70 Mk V, 2 x 1 - 20/70 Mk III, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 2 DCR (90)

1955, Swan, Warrego: all old armament was replaced by 1 x 2 - 102/45 Mk 19, 1 x 1 - 40/60 Mk 7

Naval service: Grimsby was bombed by German dive-bomber Ju 87 25/5/1941, Parramatta was torpedoed by German submarine U559 in Mediterranean sea 27/11/1941. Yarra was sunk in action with Japanese cruisers and destroyers in Java sea 4/3/1942. Leith was sold commercially in 1946 but later was resold to Denmark as fighting ship.

Ivan Gogin, 2008-15