MONTGOMERY destroyers (1918-1919/1940-1943)

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TORPEDO SHIPS

Ships

Name	No	Builder	Laid down	Launched	Comp	Fate
Annapolis (ex-DD175 Mackenzie)	I04	Union Iron Wks, San Francisco, USA	7.1918	19.9.1918	7.1919 // 9.1940	BU 6.1945
Caldwell (ex-DD133 Hale)	I20	Bath Iron Wks, USA	10/1918	29.5.1919	6/1919 // 7.1942	BU 12.1944
Chelsea (ex-DD134 Crowninshield)	I35	Bath Iron Wks, USA	11/1918	24.7.1919	8/1919 // 11.1942	to UK 12.1943
Columbia (ex-DD183 Haraden)	I49	Newport News, USA	3/1918	4.7.1918	6/1919 // 9.1940	damaged 25.2.1944, never repaired, BU 1945
Georgetown (ex-DD168 Maddox)	I40	Bethlehem, Quincy, USA	7/1918	27.10.1918	3/1919 // 9.1942	to UK 12.1943
Hamilton (ex-DD170 Kalk, ex-Rogers)	I24	Bethlehem, Quincy, USA	8/1918	21.12.1918	3/1919 // 9.1940	BU 8.1945
Lancaster (ex-DD76 Philip)	G05	Bath Iron Wks, USA	9/1917	25.7.1918	8/1918 // 1942	to UK 1944
Leamington (ex-DD127 Twiggs)	G19	New York SB, USA	1/1918	28.9.1918	7/1919 // 12.1942	to UK 12.1943
Mansfield (ex-DD78 Evans)	G76	Bath Iron Wks, USA	12/1917	30.10.1918	11/1918 // 9.1942	BU 6.1944
Montgomery (ex-DD75 Wickes)	G95	Bath Iron Wks, USA	6/1917	25.6.1918	7/1918 // 1942	to UK 1943
Niagara (ex-DD162 Thatcher)	I57	Bethlehem, Quincy, USA	6/1918	31.8.1918	1/1919 // 9.1940	stricken 9.1945
Richmond (ex-DD93 Fairfax)	G88	Mare Island N Yd, USA	7/1917	15.12.1917	4/1918 // 8.1943	to UK 12.1943
St. Clair (ex-DD108 Williams)	I65	Union Iron Wks, San Francisco, USA	3/1918	4.7.1918	3/1919 // 9.1940	stricken 10.1946
Salisbury (ex-DD140 Claxton)	I52	Mare Island N Yd, USA	4.1918	15.1.1919	9.1919 // 9.1942	to UK 12.1943

Technical data

Displacement standard, t	1090
Displacement full, t	1360 - 1390
Length, m	94.5 wl 95.8 oa
Breadth, m	9.40
Draught, m	2.80
No of shafts	2
Machinery	exact data is not available in many cases, following machinery composition is somewhat conjectural Annapolis, St. Clair: 2 sets General Electric Curtis geared steam turbines, 4 Yarrow boilers Columbia: 2 sets General Electric Curtis geared steam turbines, 4 Thornycroft boilers Georgetown, Hamilton, Niagara: 2 Curtis steam turbines / 1 geared steam turbine for cruising, 4 Yarrow boilers Caldwell, Chelsea, Lancaster, Mansfield, Montgomery, Richmond, Salisbury: 2 sets Parsons geared steam turbines, 4 Normand boilers Leamington: 2 sets Parsons geared steam turbines, 4 White-Forster boilers
Power, h. p.	26000 Lancaster, Mansfield, Montgomery: 24200 Annapolis, Georgetown, Hamilton, Niagara, St. Clair: 27000
Max speed, kts	35 Lancaster, Mansfield, Montgomery: 32
Fuel, t	oil 275 Salisbury: oil 288
Endurance, nm(kts)	4300(14)
Armament	Annapolis, Columbia, Hamilton, Niagara, St. Clair: 4 x 1 - 102/50 Mk 9, 1 x 1 - 76/23 Mk 14, 3 x 1 - 12.7/90, 4 x 3 - 533 TT, 2 DCR (10 - 15) Caldwell(7/1942): 3 x 1 - 102/50 Mk 9, 1 x 1 - 76/45 20cwt QF Mk I/II/III/IV, 3 x 1 - 12.7/90, 2 x 3 - 533 TT, 4 DCT, 2 DCR (60) Chelsea, Georgetown, Mansfield, Montgomery, Salisbury, Richmond: 1 x 1 - 102/50 Mk 9, 1 x 1 - 76/45 20cwt QF Mk I/II/III/IV, 4 x 1 - 20/70 Oerlikon Mk II/IV, 3 x 1 - 12.7/90, 1 x 3 - 533 TT, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 2 DCR (60) Lancaster, Leamington: 3 x 1 - 102/50 Mk 9, 1 x 1 - 76/45 20cwt QF Mk I/II/III/IV, 3 x 1 - 12.7/90, 2 x 3 - 533 TT, 4 DCT, 2 DCR (60)
Electronic equipment	Annapolis, Columbia, Hamilton, Niagara, St. Clair: type 141 sonar Caldwell, Chelsea, Georgetown, Lancaster, Leamington, Mansfield, Montgomery, Richmond, Salisbury: type 271, type 286 radars, type 141 sonar
Complement	146

Standard scale images

St. Albans 1942

Project history

In May, 1940 Sir Winston Churchill has suggested US president Roosevelt to take in 99-year use all English naval and aviation bases in Western hemisphere, in exchange for 50 old destroyers. Originally the request has been turned down, however after the heavy losses suffered by Royal Navy in the summer of the same year, Churchill nevertheless managed to persuade Roosevelt, and 2.9.1940 president has signed the agreement. Transferred destroyers concerned to numerous class of "flushdeckers" built in the USA in 1917-1920. Their distinctive feature were flyshdecked hull silhouette, a rhombic arrangement of main guns and powerful torpedo armament. Ships were sectioned into some groups, differing by macinery structure, number of funnels and a fuel stowage. Transfer passed from September till November, 1940, part at once has arrived to RCN. Though Admiralty was in great need in the ships for escort of Atlantic convoys, destroyers received from the USA needed many modernizing works to use them in this role. Armament of "flushdeckers" has not undergone some serious changes or 20 years of service and approached for the anti-air and anti-submarine tasks a little. Besides, insufficient, from the point of view of Admiralty, the stability of ships demanded acceptance of measures for decrease of the top weight. As a whole update of former American destroyers repeated update to which have undergone in 1940 on old British WWI-era destroyers: British-constructed sonar was fitted, aft 102mm main gun was changed by British 3`` AA, and American gun of the same calibre was demounted, as well as pair of TT mounts. 4 DCTs were installed (rarely 2).

Modernizations

late 1940, Annapolis, Hamilton: - 1 x 1 - 102/50, 1 x 1 - 76/23, 2 x 3 - 533 TT; + 1 x 1 - 76/45 20cwt QF Mk I/II/III/IV, 4 DCT, DC stowage increased up to 60

late 1940, Niagara: - 1 x 1 - 102/50, 1 x 1 - 76/23, 2 x 3 - 533 TT; + 1 x 1 - 76/45 20cwt QF Mk I/II/III/IV, 2 DCT, DC stowage increased up to 60

late 1940, St. Clair, Columbia: - 2 x 3 - 533 TT; + 4 DCT, DC stowage increased up to 60

1941-1942, most early commissioned ships: + type 271, type 286 radars

1941 - 1943, Annapolis, Hamilton: - 2 x 1 - 102/50, 1 x 3 - 533 TT; + (2 - 4) x 1 - 20/70 Oerlikon Mk II/IV or 2 x 1 - 40/39 2pdr QF Mk VIII, 1 x 24 - 178 Hedgehog ASWRL. TT was moved to center line.

1942, Niagara: - 1 x 3 - 533 TT. TT was moved to center line.

1942, Columbia: - 3 x 1 - 102/50, 1 x 1 - 76/23, 1 x 3 - 533 TT; + 1 x 1 - 76/45 20cwt QF Mk I/II/III/IV, 2 x 1 - 20/70 Oerlikon Mk II/IV, 1 x 24 - 178 Hedgehog ASWRL. TT was moved to center line.

1942 - 1943, Annapolis, Columbia: 1 boiler and its funnel were removed. Fuel stowage rose. Engine power and maximal speed were decreased.

1943-1944, some: - type 286 radar; + type 291 radar

Naval service