[TorpX]

I am reading Spadefish , by Stephen L. Moore, and ran across some interesting bits of information in the chapter I just finished, and had to share.

#1 - TDC operation

The soundman would give a turn count on a target ship and this was somehow input into the TDC to obtain the speed:

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Then the gunnery officer, Lieutenant Laundy, would put this count right into the TDC and it would figure the speed of the enemy.

#2 - "decks awash"

We had an interesting discussion about this recently.

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Underwood ordered his boat flooded down to reduce her topside radar profile. Her decks were awash with just the bridge structure exposed.

[Enemy radar was a concern. The had the APR radar detector and could tell when they were being looked at.]



#3 - maximum speed

There was discussion about this too, awhile back, concerning Barb's max. speed and no real consensus as to how this was achieved. I don't recall the speed claimed for Barb, but Spadefish got itself into a very tense situation with multiple escorts chasing her on the surface in fairly shallow water.

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At maximum power, as the electricians put it ... attaining a shaft speed of 305 turns on a 1400 KW load from the motors for a pit log speed of 22.8 knots- the fastest that Spadefish was ever to be driven while fully loaded!

Anyway, I considered these to be very interesting details. If I find more in the rest of the book, I'll post them.