02-28-19, 08:24 AM
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#7639
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DILLIGAF
Join Date: Feb 2007
Location: florida
Posts: 2,058
Downloads: 210
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Quote:
Originally Posted by swdw
From doing RFB it always amazes me how many people are surprised to learn how bad our torpedoes actually were.
Wish I still had all the files when I researched this, but if someone has some historical questions, I'd be glad to answer.
So people know, a target angle of 90 degrees (perpendicular) had a <10% chance of detonating when run at high speed. As the angle changed, the chance of detonation increased. If I remember right (been a while so these may be off) it was 70% at 45 degrees and 90% with an angle of 20 degrees or less. There was little change in the dud rate until an angle of 70-75 degrees was reached. There were other numbers I found, but those are the ones I remember.
Going to slow speed didn't double the chances of detonation, but did increase them.
My understanding is someone came along after I turned over the RFB project and changed the numbers, getting them wrong. Too bad. But man did I catch hell for the torpedo changes and had to post the story of the Tinosa and a couple others for people to back off.
Note: this doesn't even take into account the depth problem or the magnetic exploder issue
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Yes the dud rate was horrendous during WW2 for the USN. Good thing they had all those IJN propellers to retrofit the firing pin or they would have never sank a thing.
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日本帝國海軍
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