InchHigh wrote:
Torpedoes make one heck of a geyser, and they explode against the side (contact fuse) or under (magnetic fuse) a ship. Why would a bomb be any different?
A whole lotta reasons. First off, check out
this video of a modern Mk 48 ADCAP torpedo hitting a ship. It's designed to explode under the ship, breaking it's back as opposed to the side-hitting contact
Type 91 Mod 2 the Japanese dropped at Pearl Harbor. The type 91 Mod 2 had a 452 lbs warhead charge, the Mk 48 has a 650 lbs warhead, The type 91 side hitters, 2/3 the explosive charge by weight as the modern torpedo, and
are producing geysers that are easily taller than the US Battleships are long. The larger warhead in the video doesn't produce anything like that at all.
It may be due to differences in depth (more pressure to resist) but we are also talking about a larger warhead. The main factor in the much smaller geyser is the effect of having an object directly above to take that upward shock wave and reflect it. The bomb simply could not push force straight up unless it came out of the ship at an extreme angle and was no longer underneath it when it exploded. Finally, the Type 99 bomb used at Pearl Harbor had a 66 pound explosive charge. It's going to create an air bubble, but it's going to be small and not have much force. It has to be considered that a good portion of it could have even vented back in through the ship from the hole it created on the way through (I don't think this is as likely but I'm not an expert).
InchHigh wrote:
Reasonable guesses can be made to localize the likely area to search. Is there a technology which would allow locating a bomb there? Has the Parks Service ever thought about looking?
Metal detectors and mud-piercing sonar would work well *IF* the harbor wasn't already full of debris from Arizona's explosion and nearly 100 years of Navy occupation.
Jeff Sharp wrote:
What might be those two geysers shaped objects then if not bomb geysers?
Counter question - how do you explain the missing geyser near the south quay if you are so sure that the two you believe are splashes leave that large of a geyser and trailing shower? The images are too distant and unclear to be sure of what's going on - the same reason I don't believe we have photographic proof of a midget sub firing on battleship row.
_________________
Tracy White -
Researcher@Large"Let the evidence guide the research. Do not have a preconceived agenda which will only distort the result."
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Barbara Tuchman