Post by David WilmaOne thing that surprised me in reading Hornfischer was the low
hit rate of naval gunnery. The Japanese eavesdropped on Pacific
Fleet gunnery practices before the war off California and determined
that the hit rate was 5 percent. Planners devised a tactic of hitting
short of targets to have shells detonate under the water near the target.
Yes, it was a surprise when it was found shells could continue their
trajectory for a while after hitting the water, almost acting like
torpedoes, one reason why no further battleships were built, given
the extra cost to cope with the new threat.
Post by David WilmaIn the Battle off Samar and at Surigao Strait there were thousands of rounds
expended with few finding their marks. Torpedoes proved to be the
decisive weapon. The DDs, DE and CVE were sunk by gunfire though, but
only after many, many shots.
The Japanese spent most of the Samar battle assuming they were
fighting US fleet carriers and so fired AP, which tended not to explode
inside any US ships they hit. It was one reason they went for the wind
gauge instead of charging directing into the USN formation. Add the
use of smoke screens and passing showers.
Surigao strait was a night engagement, we do not know how many
shells hit, the attacking US destroyers reported lots of hits from
the other ships, we do know the USS Grant was hit 11 times after
being mistaken for a Japanese ship.
How many rounds are reported to have been fired at Surigao?
Post by David WilmaI know that field artillery isn't much better, but on land a near miss can still
be damaging.
Near misses can be quite dangerous on land, sea and in the air.
Post by David WilmaMy point is that a lot of national effort was spent on weapons
and technology that didn't quite work as advertised.
Few weapons work as advertised, the usual marketing oversell
meeting the real world situation.
Post by David WilmaDid World War II have other weapons that didn't deliver as advertised. The
Norden and Sperry bombsights come to mind. What others?
The tolerance for the bomb sights were relaxed in order to have enough,
just about the time the demand dropped. And of course there is the
inevitable degradation in performance between a lone sortie at a bombing
range with a clear target and bombing a real life target while under fire
and
needing to hold formation.
In any case it was really the bombing that failed to live up to pre war
theories.
Firstly the theories assumed medium altitudes, short range, no radar and
chemical and even biological weapons. What they then failed to do was
account for navigation, weather, target identification (simple error, smoke
screens, camouflage), effects of ground and air defences and, far more
importantly, did almost no studies on how much damage the bombs
actually did. Nor were there many satisfactory intelligence sources
developed during the war to accurately report what damage had been done.
Bomb sights were well down the list of error sources.
Geoffrey Sinclair
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