Quote:
Originally Posted by DeepSix
Hate to burst the bubble, because the "Long Lance" was indeed an excellent torpedo, but I think it was only used in surface ships. The submarine torpedo was the Type 95. Both models were driven by compressed oxygen (hydrogen peroxide) and travelled at 45-50 knots, IIRC.
But, heck yeah, Long Lances could ruin anybody's day. 
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Deepsix, by compressed do you mean liquid ? cause that's what fuelled these babies, in fact many DD's had liquid oxygen facilities on board to fill spares, and the large box like tube mounts were armoured to protect the eels from splinters.
Have a read of this:
Ship and Submarine Torpedoes
Model Diameter Length OA Total Weight Explosive Charge Range Wander (max) Comments
6th Year Type 21" 22' 5" 3157 lbs. 441 lbs. 7,000m @ 36 kts
10,000m @ 32 kts
15,000m @ 26 kts ? An older torpedo still used in some of the older RO-class submarines.
8th Year Type 24" 27' 7" 5207 lbs. 761 lbs. 10,000m @ 38 kts
15,000m @ 32 kts
20,000m @ 28 kts ? A large conventional wet-heater torpedo still used aboard some older cruisers and destroyers, notably Nagara.
Type 92 21" 23' 5" 3792 lbs. 661 lbs. 7000m @ 30 kts 120m / 7,000m An electric torpedo for submarines, used extensively throughout the war.
Type 93 24" 29' 6" 5952 lbs. 1080 lbs. 20,000m @ 48 kts
32,000m @ 40 kts
40,000m @ 36 kts 500m / 20,000m
1000m / 32,000m
1500m / 40,000m The Long Lance. 'Nuff said.
Type 95 21" 23' 5" 3671 lbs. 893 lbs. 9,000m @ 49 kts
12,000m @ 45 kts 170m / 9,000m
250m / 12,000m A smaller version of the Type 93 intended for submarines.
Type 97 17.7" 18' 5" 2161 lbs. 772 lbs. 5,500m @ 44 kts 80m /5,500m A miniaturized Type 93 intended for midget submarines. Very unsuccesful (its oxygen flasks leaked a lot), it was used operationally only once - at Pearl Harbor.
Just for giggles, let's take a look at the statistics on the standard US Navy destroyer torpedo of the war, the Mark 15.
Model Diameter Length OA Total Weight Explosive Charge Range Max Launch Speed Comments
Mark 15 21" 24' 0" 3841 lbs. 825 lbs. 5,500m @ 45 kts
9,150m @ 33 kts
13,700m @ 26 kts ?
BTW, how do I post pics here ?