The last destroyer design for Antarctica was the Swan class of 1916/17, which finished completion of the class in 1920. The design process that began in 1918 was to take all the wartime lessons from the destroyers designed, built and used during the war, to produce a set of ships that would take the Antarctican destroyer classes into the future. It was decided that the Hayes class destroyer leaders should be the start point. The Hayes class had five 5" guns with the fifth gun between the funnels which reduced its usefulness. Also the 2 pounder four and eight gun mountings were under design and trials and the quad mounting of these weapons would make a good AA weapon for destroyers. It would take a while before these mountings would get down to destroyer level with so many large ships in front of them in the queue.



With 40 ships in the class, it was felt this would give eight five ship flotillas, that would provide their own leader. The ships were ordered in groups of ten. The hull, 360x36 feet (10 to 1 ratio) would remain the basic hull for the next few classes as different armaments were placed aboard. The main inter-war changes were the normal replacement of the single 2 pounder with 20mm cannons and the single 5" being replaced with dual purpose mountings. A note on the 5". All of the 5", low angle, removed, were later fitted to merchant ships for their defensive armaments. Some became 'merchant' cruisers with up to ten 5" being placed aboard and these ships would be convoy escorts that could rain heavy fire on any submarine (on the surface) or raider that may attack a convoy the ship was in.



The class performed very well during that tough first three year period of the war when everything seemed to be going wrong for the Allies. These destroyers certainly confirmed the 'maids of all work' tag. One day they could be guarding the fleet, the next day they could be detached to aid a convoy in distress. Fighting enemy light forces or beating off air attacks these ships did well. Everywhere from the Great Southern Oceans to the frozen North, these ships sowed their toughness and durability.



The 40mm refits during 1942, concentrated the light AA armament in one size and two mountings, replacing the 2 pounder and 20mm cannons previously carried. Radar predictors aided the guns knockdown capabilities. The class had many losses during the war, gunfire, bombs, torpedoes, mines, even hurricanes sank these ships. The end of the war saw the wholesale discarding of the remaining ships of the class. Being already 20 years old, none of the countries in the market to buy second hand warships wanted them.

 
Displacement 1,700 tons standard, 1,950 tons full load
Length 359 ft
Breadth 36 ft
Draught 13 ft
Machinery 2 shaft, steam turbines, 40,000shp
Speed 35 knots
Range 6,000 miles at 10 knots
Armament As completed

5 x 5" (5x1)
8 x 2pd (1x4, 4x1)
 
Refits to 1940

5 x 5" DP (5x1)
4 x 2pd AA (1x4)
4 x 20mm (4x1)
Refits to 1942

4 x 5" (4x1)
8 x 40mm (2x4)
2 x Hedgehog
Torpedoes 8 x 21" (2x4) 8 x 21" (2x4) 8 x 21" (2x4)
Complement 135 140 145
Notes Muller
McDonald
Lamm
Cetera
Parazaider
Pankow
Hermann
Knopfler
Illsley
Withers
----------
Lindes
Clark
Williams
Sonni
Fletcher
Davies
Hodgson
Palmer
Baker
Thomson
----------
Millar
Winthrop
Currie
Farrell
Siebenberg
Helliwell
Hart
Verheyen
Walsh
Hugo
----------
Thornburg
Brown
Clarke
Steele
Haydock
Rathbone
Hicks
Elliott
Parker
Howarth


Armed merchant cruiser with 5" low angle guns forward and aft.

Below is Version 1 of the Muller Class. The hull just does not suit the period I am aiming for. Though it will make a good DDE hull for the 1940's.