Dave Saxton wrote:Why was USN cruiser gunnery so poor during WWII?
You have to study US gun performance to understand how awful the cruiser shooting was. The 6"/47 was a terrible weapon, prone to wide dispersion when used in combat situations--and especially at moderate ranges. It was a very short gun and was mounted in batteries that were tightly packed. I think delay mechanisms prevented mutual interference, but US CA/CL gunnery would certainly not win any awards.
Dod Grile wrote:The answer is: it really wasn't that poor during the war...It was quite poor before the war, I mean.
Even in short & medium-range practice shoots the numbers for 8" cruisers were often dismal.
However, the idea that 8" guns would be accurate at medium to long ranges (and at
night to boot--as so many critical encounters in the Pacific were) is not very realistic.
Matrose71 wrote:1942 Battle of Barent Sea
Weather: mixed with intermittent snow storms Visibility: max 14000 yard, min 1500 yard Sea State: large swells
Hipper fired 120 8" shells at distances between 20,000 and 11,000 yard for 3 hits =2.50%.
Matrose71 wrote:The US CA improved much in long range gunnery. from Java Sea (<0.1% hitting rate) to Kommandorski Islands 0.36% hitting rate -an improvement of roughly four times compared to 1942) to Suribao Strait (=1.98%, an improvement of five times compared to 1943), possibly by the adoption of better radar FC and training?
IJN NACHI fired 707 8" at distances between 22,000 yard down to 9,500 yard for 3 hits = 0.42%
IJN MAJA fired 904 8" at distances between 22,000 yard down to 9,500 yard for 6 hits = 0.66%
The results in terms of hits, showed that the accuracy of 6-inch cruiser fire had not improved since the battles up the slot. It is not known how many hits Sendai took at the start of the action, probably not more than five, since her fighting ability was not greatly impaired and only the fact that her rudder was jammed allowed the (USN) destroyers to sink her with gunfire and torpedoes……
dunmunro wrote:Exeter at Java Sea.
Exeter's AFCT had broken down and she was using a dumaresq for firecontrol.
delcyros wrote:Higher hit rates of german cruisers may -speculation on my part- be explained by the higher aloft mounted and longer baselength RF gears, allowing them to be effective at longer range,
Dave Saxton wrote: The problem with this line of thinking is that almost all the cruiser shooting by both German and American cruisers during WWII utilized radar ranging. This includes AGS at River Plate.
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