Wellington 1939
Swan 1940
| Name | 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 | ||||||
| Swan (RAN) | L74 - U74 - F74 | Cockatoo DYd, Australia | 5/1935 | 28/3/1936 | 1/1937 | TS 1955, sold 6/1964 |
| Yarra (RAN) | L77 - U77 | Cockatoo DYd, Australia | 5/1934 | 28/3/1935 | 1/1936 | sunk 4/3/1942 |
| RAN, 2nd group | ||||||
| Parramatta (RAN) | L44 - U44 | Cockatoo DYd, Australia | 11/1938 | 18/6/1939 | 4/1940 | sunk 27/11/1941 |
| Warrego (RAN) | L73 - U73 - F312 | 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 QF Mk I HA, 4 x 1 - 47/40 Hotchkiss, 1 x 4 - 12.7/62, 2 DCT, 1 DCR (15) Aberdeen: 2 x 1 - 102/45 QF Mk V HA, 2 DCT, 1 DCR (15) Swan, Yarra: 3 x 1 - 102/45 QF Mk V HA, 4 x 1 - 47/40 Hotchkiss, 2 DCT, 1 DCR (15) Parramatta, Warrego: 1 x 2 - 102/45 QF Mk XVI HA, 1 x 1 - 102/45 QF Mk XVI HA, 1 x 4 - 12.7/62, 2 DCT, 1 DCR (15) Fleetwood: 2 x 2 - 102/45 QF Mk XVI HA, 4 x 1 - 47/40 Hotchkiss, 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 HA
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 HA
1941 - 1942, all survived: - 4 x 1 - 47/40; + 2 x 1 - 20/70 Oerlikon
1943, Warrego: - 1 X 1 - 102/45; + 1 X 2 - 102/45 QF Mk XVI HA
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 or 2 x 2 - 20/70 Oerlikon, 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 HA
1955, Swan, Warrego: all old armament was replaced by 1 x 2 - 102/45 QF Mk XVI HA, 1 x 1 - 40/56 Bofors
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, 2008-10