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Thread: Iowa class torpedo protection

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    Iowa class torpedo protection

    Looking at the drawings of the Iowa-class ships, it seems that abreast of turret 1, the torpedo protection system is not as deep as other parts of the ship? Are the powder magazines of the ship directly next to the last holding bulkhead (BHD #4)? It seems pretty dangerous for the torpedo system to thin right by the magazines.

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    Defense Professional RustyBattleship's Avatar
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    Quote Originally Posted by Radical View Post
    Looking at the drawings of the Iowa-class ships, it seems that abreast of turret 1, the torpedo protection system is not as deep as other parts of the ship? Are the powder magazines of the ship directly next to the last holding bulkhead (BHD #4)? It seems pretty dangerous for the torpedo system to thin right by the magazines.
    There is no reduction of torpedo protection. The booklet does not show the extend of the Class B armor BELOW the Class A armor that tapers down to the Innerbottom. The Hull starts narrowing as it goes forward. The Iowa class Battleship hulls are actually an extended Cruiser hull. So the narrowing is ONLY in the shape of the shell plating. Otherwise, up to bulkhead 50 and on back to bulkhead 166 the inner torpedo, falling shot, armor arrangement is the same.
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    Defense ProfessionalSenior Contributor tbm3fan's Avatar
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    Thought of this thread today after reading a story about the USS Porter "Willie Dee" where the author takes huge literary license to talk about how that one torpedo launched almost sunk and killed FDR. Talk about a glass jaw...

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    Defense Professional RustyBattleship's Avatar
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    Quote Originally Posted by tbm3fan View Post
    Thought of this thread today after reading a story about the USS Porter "Willie Dee" where the author takes huge literary license to talk about how that one torpedo launched almost sunk and killed FDR. Talk about a glass jaw...
    Ummm, no. One torpedo would not sink the Iowa. However, when FDR heard that a torpedo had been launched from a Destroyer, he first thought it was part of the weapons demonstration that the Navy was staging for him. Therefore, to satisfy his curiosity, he moved his wheelchair over to the railing to watch the torpedo. Well, the secret service men realized it was not a demonstration and pulled FDR away from the starboard side to the port side. Supposedly, one of the agents even drew his gun. Now, I don't know what a .38 caliber snub-nose revolver would do to a torpedo, but you have to give that agent kudos for instinctive reflexes.

    Even Delano Roosevelt (FDR's grandson) who has worked with us and is a founding member of the Pacific Battleship Center laughs about it every time the incident is brought up.

    Seriously, however, if the torpedo hit the side of the ship just below where FDR was looking over the life rails, that geyser of water would certainly have done unimaginable harm to him.
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    Looking at the drawings from the Booklet of General Plans, it seems like Missouri's torpedo holding bulkheads are 3/4" but the New Jersey is 5/8"? Why did the thickness increase for Missouri?

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