SUBSIM Radio Room Forums - View Single Post - Hit power of torpedoes : US to IJN calculation

NEON DEON · 03-21-09, 07:36 PM

From my calculation posted above given the facts about torpex in the mk 14 VS japanese type 97 explosives used in the 95.

http://navweaps.com/Weapons/WTJAP_Notes.htm

Under warhead Explosives for japan:

"World War II Torpedoes: The standard explosive charge was 60% TNT and 40% hexanitrodiphenylamine in blocks. This had first been developed by the Germans in 1907 and was very resistant to shock. This explosive was classified as Type 97 by the Japanese and was about 7% more powerful than 100% TNT."

http://www.geocities.com/Pentagon/1592/ustorp3.htm

US torpex:

"Warheads
The second major development, new warheads, involved the switch from TNT to Torpex as the high explosive. Torpex is a mixture rather than a pure chemical compound as TNT is. The components are TNT 41%, RDX (Cyclonite, Hexogen) 41% and aluminum powder 18%8. Torpex is attractive because of the increased explosive energy and higher detonation velocity of RDX as compared to TNT and the prolongation of the pressure wave by the aluminum. On a weight basis, Torpex is conservatively about 50% more effective than TNT as an underwater explosive against ships. Torpex is, however, more sensitive than TNT and RDX was expensive and difficult to make safely. The process of converting to Torpex torpedo warheads (and depth charge loadings) began with an order for 20 million pounds in early 19429. The first Torpex loaded warheads10 followed late the same year. The 640 pounds of Torpex in a Mk.14 warhead was at least the equivalent of 960 pounds of TNT11 almost twice the destructive power of the original Mk.14."
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US torpex:

http://en.wikipedia.org/wiki/Torpex

"Torpex is a secondary explosive 50% more powerful than TNT by weight.[citation needed] Torpex is composed of 42% RDX, 40% TNT and 18% powdered aluminium. It was used in the Second World War from late 1942. The name is short for 'Torpedo Explosive', having been originally developed for use in torpedoes."

Soo looks like your gonna need two mark 14s instead of one.

PS.

Sorry I have to do these posts in small parts as my computer keeps freezeing due to my stupid USB ports hooked into a wireless adapter.

03-21-09, 07:36 PM	#4
NEON DEON Ace of the Deep Join Date: Apr 2005 Location: Los Angeles, CA Posts: 1,207 Downloads: 39 Uploads: 5	From my calculation posted above given the facts about torpex in the mk 14 VS japanese type 97 explosives used in the 95. http://navweaps.com/Weapons/WTJAP_Notes.htm Under warhead Explosives for japan: "World War II Torpedoes: The standard explosive charge was 60% TNT and 40% hexanitrodiphenylamine in blocks. This had first been developed by the Germans in 1907 and was very resistant to shock. This explosive was classified as Type 97 by the Japanese and was about 7% more powerful than 100% TNT." http://www.geocities.com/Pentagon/1592/ustorp3.htm US torpex: "Warheads The second major development, new warheads, involved the switch from TNT to Torpex as the high explosive. Torpex is a mixture rather than a pure chemical compound as TNT is. The components are TNT 41%, RDX (Cyclonite, Hexogen) 41% and aluminum powder 18%8. Torpex is attractive because of the increased explosive energy and higher detonation velocity of RDX as compared to TNT and the prolongation of the pressure wave by the aluminum. On a weight basis, Torpex is conservatively about 50% more effective than TNT as an underwater explosive against ships. Torpex is, however, more sensitive than TNT and RDX was expensive and difficult to make safely. The process of converting to Torpex torpedo warheads (and depth charge loadings) began with an order for 20 million pounds in early 19429. The first Torpex loaded warheads10 followed late the same year. The 640 pounds of Torpex in a Mk.14 warhead was at least the equivalent of 960 pounds of TNT11 almost twice the destructive power of the original Mk.14." ____________________ US torpex: http://en.wikipedia.org/wiki/Torpex "Torpex is a secondary explosive 50% more powerful than TNT by weight.[citation needed] Torpex is composed of 42% RDX, 40% TNT and 18% powdered aluminium. It was used in the Second World War from late 1942. The name is short for 'Torpedo Explosive', having been originally developed for use in torpedoes." Soo looks like your gonna need two mark 14s instead of one. PS. Sorry I have to do these posts in small parts as my computer keeps freezeing due to my stupid USB ports hooked into a wireless adapter. __________________ Diesel Boats Forever! Last edited by NEON DEON; 03-21-09 at 07:55 PM.