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, 1948- 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, 1948- 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, 1948- 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 |
2 sets 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, 2 DCT, 1 DCR (15) Aberdeen: 2 x 1 - 102/45 QF Mk V, 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) Swan, Yarra: 3 x 1 - 102/45 QF Mk V, 1 x 4 - 12.7/62, 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) |
|
Sensors |
type 124 sonar Yarra, Swan: type 126 sonar Parramatta, Warrego: type 127S sonar |
|
Complement |
100 |
Project history: First six sloops were designed under 1931
(Grimsby and Leith), 1932 (Lowestoft and Wellington) and 1933 (Deptford and
Londonderry) Programmes.
Unlike the ships of previous
Programmes, Grimsby class sloops, first of all,
were 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 mainly armament. The
artillery has been strengthened at the expense of replacing
of 102mm by 120mm
guns. New guns were not DP, and ships were equipped with 76mm
AA gun.
Aberdeen and Fleetwood were designed under the 1934
Programme. They were designed
as previous Grimsby class, but being fitting out armament structure
was changed.
Single-purpose 120mm guns were replaced by 102mm DP guns: 4 single on Aberdeen
(the place was provided, actually only two were installed, three since August,
1939), two twin on Fleetwood.
Australian sloops were 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 was by 0.35kts faster.
Modernizations: late 1935, Lowestoft: - 1 x 1 - 120/45
early 1937, Lowestoft: + 1 x 1 - 120/45 QF Mk IX
1938, Fleetwood: - 4 x 1 - 47/40; + 1 x 4 - 12.7/62
1938-1939, Deptford, Leith, Grimsby, Londonderry: - 4 x 1 - 47/40; + 2 x 4 - 12.7/62
summer 1939, Londonderry: - 2 x 1 - 120/45, 1 x 1 - 76/45, 4 x 1 - 47/40; + 2 x 2 - 102/45 QF Mk XVI
summer 1939, Lowestoft: - 2 x 1 - 120/45, 1 x 1 - 76/45, 4 x 1 - 47/40; + 2 x 2 - 102/45 QF Mk XVI, 1 x 4 - 12.7/62
autumn 1939, many: DC stowage increased up to 40
autumn 1939, Grimsby, Lowestoft: can carry up to 40 mines
1940, Deptford, Londonderry, Lowestoft: + type 286 radar
1941, Aberdeen, Wellington: - 4 x 1 - 47/40; + 2 x 1 - 20/70 Oerlikon Mk II/IV
1941, Fleetwood: + 3 x 1 - 20/70 Oerlikon Mk II/IV, type 286M radar
1941, Leith: + type 286 radar
1941, Londonderry: - 2 x 4 - 12.7/62; + 2 x 1 - 20/70 Oerlikon Mk II/IV
1941, Lowestoft: + 2 x 1 - 20/70 Oerlikon Mk II/IV, 1 x 4 - 12.7/62
1942, Aberdeen: - type 124 sonar; + 4 x 1 - 20/70 Oerlikon Mk II/IV, 1 x 24 - 178 Hedgehog ASWRL, type 271 radar, type 144 sonar
1942, Deptford: - type 286 radar, type 124 sonar; + 4 x 1 - 20/70 Oerlikon Mk II/IV, 1 x 24 - 178 Hedgehog ASWRL, type 271 radar, type 144 sonar
1942, Fleetwood: - 2 x 4 - 12.7/62,type 286M radar; + 3 x 1 - 20/70 Oerlikon Mk II/IV, type 271, type 286P radars
1942, Leith: - 2 x 4 - 12.7/62, type 286 radar; + 4 x 1 - 20/70 Oerlikon Mk II/IV, type 271, type 291 radars
1942, Londonderry: + type 271 radar
1942, Lowestoft: - 2 x 4 - 12.7/62; + 4 x 1 - 20/70 Oerlikon Mk II/IV
1942, Wellington: + 4 x 1 - 20/70 Oerlikon Mk II/IV, type 271 radar
1942, Swan, Warrego: - 3 x 1 - 102/45, 1 x 4 - 12.7/62; + 2 x 2 - 102/45 QF Mk XVI, 1 x 1 - 40/60 Bofors Mk III, 6 x 1 - 20/70 Oerlikon Mk II/IV, presumably type 271, type 291 radars
1943, Londonderry: - type 286 radar, type 124 sonar; + 4 x 1 - 20/70 Oerlikon Mk II/IV, 1 x 24 - 178 Hedgehog ASWRL, type 291 radar, type 144 sonar
1943, Deptford: - 2 x 4 - 12.7/62; + 2 x 1 - 20/70 Oerlikon Mk II/IV
1943, Fleetwood: - type 124 sonar; + 1 x 24 - 178 Hedgehog ASWRL, type 144 sonar
1943, Lowestoft: - type 286 radar, type 124 sonar; + 1 x 24 - 178 Hedgehog ASWRL, type 271, type 291 radars, type 144 sonar
1943, Leith: - type 124 sonar; + 2 x 1 - 20/70 Oerlikon Mk II/IV, 1 x 24 - 178 Hedgehog ASWRL, type 144 sonar
1943, Wellington: - 1 x 1 - 76/45, type 124 sonar; + 1 x 24 - 178 Hedgehog ASWRL, type 144 sonar
1943 - 1944, all survived: +, 2 DCT, 1 DCR, DC stowage rose up to 90
1/1946, Aberdeen: 2 x 1 - 102/45 HA Mk III, 6 x 1 - 20/70 Mk III, 1 x 4 - 12.7/62, 1 x 24 - 178 Hedgehog ASWRL, 2 DCT, 1 DCR (15), type 271 radar, type 144 sonar
1/1946, Deptford: 2 x 1 - 120/45 CP Mk XIV, 1 x 1 - 76/45 Mk II, 6 x 1 - 20/70 Mk III, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 2 DCR (90), type 271 radar, type 144 sonar
1/1946, Leith: 2 x 1 - 120/45 CP Mk XIV, 1 x 1 - 76/45 Mk II, 6 x 1 - 20/70 Mk III, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 2 DCR (90), type 271, type 291 radars, type 144 sonar
1/1946, Fleetwood: 2 x 2 - 102/45 Mk XIX, 6 x 1 - 20/70 Mk III, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 2 DCR (90), type 271, type 286P radars, type 144 sonar
1/1946, Londonderry, Lowestoft: 2 x 2 - 102/45 Mk XIX, 6 x 1 - 20/70 Mk III, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 2 DCR (90), type 271, type 291 radars, type 144 sonar
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, Wellington: 2 x 1 - 120/45 CP Mk XIV, 6 x 1 - 20/70 Mk III, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 2 DCR (90), type 271 radar, type 144 sonar
late 1940s, Swan, Warrego: - 6 x 1 - 20/70; + 3 x 1 - 40/60 Mk VII
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 destroyed by German dive-bomber Ju 87 25.5.1941, Parramatta was torpedoed by German submarine U559 in Mediterranean 27.11.1941. Yarra was sunk in action against 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.
Many thanks to Wolfgang Stöhr for additional information on this page.
© Ivan Gogin, 2008-15