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IMHO the appearance of the DD413 at the outbreak of the war should be like that rather ...
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Aaaarrrr.The only thing missing, is me on the bridge heading out for some piracy! There's styrene to be had on them seas!
Save that for Sept. 19, mateyAaaarrrr.
A lot can depend on sea state. Destroyers rolled and pitched more than larger ships. A fast moving ship may have faster vertical movement (pitching) than a slower ship in the same wave conditions (sea state)? This is one reason that destroyers could not maintain high speed in bad weather, they started pounding.Drachinifel says that French DDs had a hard time shooting main battery at full speed, which I can understand, but I don't know how square it is as a fact.
Some of the Japanese ships looked better on paper than they really were but so did some of the others.Overall, by 1939, I'd say the Brits and the Japanese had great destroyers, Americans had okay ships. Heavy gun armament, torps good for the first two. Not sold on the others.
A lot can depend on sea state. Destroyers rolled and pitched more than larger ships. A fast moving ship may have faster vertical movement (pitching) than a slower ship in the same wave conditions (sea state)? This is one reason that destroyers could not maintain high speed in bad weather, they started pounding.
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Extreme but kind of illustrates the point? Even in a much calmer sea the higher speed ship may have the gun mounts moving at higher vertical accelerations even though the total pitch change is almost the same?
Some of the Japanese ships looked better on paper than they really were but so did some of the others.
The Japanese 5in DP guns were actually pretty poor DP guns. The rate of fire was on the low side even for surface action and they had to lowered to 10 degrees for loading which really screwed up AA gunnery. The Japanese 12.7cm/50 could be pointed up at a high angle but it really wasn't very good at shooting at high angles. Of course it may have been good enough in the late 20s when it came out, but it was no longer good enough for the faster planes of 1941 and later.
Another thing the US doesn't credit for is ammo capacity. Even the Farragut and Sims classes had 300rpg. Many of the Axis destroyers only had around 150-180rpg. Germans had less?
With guns that can fire 10rpm running out of ammo in 15-20 minutes means you have to choose shots more carefully.
The British Tribals a later had 250rpg + star shell?
Fletchers and later had well over 400rpg.
The Japanese DDs had rather small depth charge capacity at the start of the war. 14-18 charges depending on class. Later increased to 36 in most ships. Most Japanese DDs did not have sonar/asdic at the time of Pearl Harbor.
They were basically one trick ponies, surface attack. They may have been the best in the world at that one trick, but they were near useless at just about anything else.
I can see how the USN could compare DDs with the RN. How did the RN form their positive opinion of the IJN DDs? Rhetorical question. I did start thinking about the Fubukis operating in the North Sea, though.D.K.Brown and some of the other Admiralty higher-ups considered the Japanese DDs (depending on the class) to have superior or equal seakeeping to the Royal Navy types.
Prewar the IJN greatly admired the RN and tried to emulate it, including the use of English in giving orders aboard ship. There must have been some contact between the two navies to enable the IJN to slavishly copy the RN and that would have enabled the RN to assess IJN capabilities.How did the RN form their positive opinion of the IJN DDs?
Britain, and the Royal Navy, had a very close relationship with Japan between 1902 and 1923 thanks to the Anglo-Japanese Alliance. The RN trained some Japanese officers and Japanese liaison officers served with the RN.Prewar the IJN greatly admired the RN and tried to emulate it, including the use of English in giving orders aboard ship. There must have been some contact between the two navies to enable the IJN to slavishly copy the RN and that would have enabled the RN to assess IJN capabilities.