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Jungman · 11-19-05, 04:40 AM

Check this excellent read. The Torpedo from T-2 to T-3a went through increasing range and performance. So I guess use what you believe.
------------- http://en.wikipedia.org/wiki/G7e
G7e/T2
The T2 model of the G7e was in service with German U-boat fleets from the first day of WWII. In stark contrast with the G7a steam driven torpedo, the T2 left no visible stream of bubbles to alert ships they were under attack, and was virtually silent. However, these were the T2's only advantages over the G7a torpedo. The T2 in all other respects preformed abysmally when compared to the G7a. Its range was much shorter than the G7a's at only 3000 m, and it ran much slower at 30 kt (55 km/h).

Poor range and speed were not the T2's only problems. Both of its exploders were terribly flawed. The magnetic influence mechanism, designed to allow the torpedo to run under the keel of a ship and detonate, breaking the ship's back, was totally inconsistent; often a T2 would detonate prematurely, or not at all. This lead the BdU to order all G7e/T2 torpedos be fired only for contact detonation. However, the contact pistol of the T2 often did not work, either. The depth-keeping equipment of the T2 often failed as well, leading T2s to miss their targets by running too deeply under a target. Estimates of the failure rate of T2 torpedos for one reason or another range between 20% and 40%.

However, the German Navy, after much prodding by German Sub Command (BdU), poured resources into correcting the T2's flaws. Gradually, it improved, and by the end of the Norwegian Campaign problems with the contact exploder and depth-keeping gear had been solved, as well as significant strides made in improving the magnetic proximity feature. At the same time, the T2's range was increased from 3000 m to 5000 m and eventually 7500 m. By that time, however, the T2 was already being phased out of production.

[edit]
G7e/T3
Improvements in the design of the G7e/T2 lead directly into the production of the next model of electric torpedo for Germany's U-boat fleet. Introduced in 1942, the T3 represented a vast improvement over the early T2. The faulty exploders the T2 were scrapped in favor of a new design.

The T3 had a range of 5000 m and could achieve 30 kt (about fifty percent slower than standard British and American torpedoes). With the improved of the T3 and the new exploder, the G7a steam torpedo was totally superseded and rarely used for the remainder of the war. Using the T3's perfected proximity feature, U-boat captains could effectively fire under the keel of a ship and break the back of their targets with a single torpedo, increasing the overall effectiveness of the U-boat fleet. The T3 could be fitted with both the FAT and LUT pattern running systems for convoy attacks.

Though many opportunities had been missed due to the defects of the T2 torpedo, with the new T3 U-boats were deadlier than ever.

11-19-05, 04:40 AM	#9
Jungman Samurai Navy Join Date: Apr 2005 Location: Iowa, USA Posts: 596 Downloads: 0 Uploads: 0	Check this excellent read. The Torpedo from T-2 to T-3a went through increasing range and performance. So I guess use what you believe. ------------- http://en.wikipedia.org/wiki/G7e G7e/T2 The T2 model of the G7e was in service with German U-boat fleets from the first day of WWII. In stark contrast with the G7a steam driven torpedo, the T2 left no visible stream of bubbles to alert ships they were under attack, and was virtually silent. However, these were the T2's only advantages over the G7a torpedo. The T2 in all other respects preformed abysmally when compared to the G7a. Its range was much shorter than the G7a's at only 3000 m, and it ran much slower at 30 kt (55 km/h). Poor range and speed were not the T2's only problems. Both of its exploders were terribly flawed. The magnetic influence mechanism, designed to allow the torpedo to run under the keel of a ship and detonate, breaking the ship's back, was totally inconsistent; often a T2 would detonate prematurely, or not at all. This lead the BdU to order all G7e/T2 torpedos be fired only for contact detonation. However, the contact pistol of the T2 often did not work, either. The depth-keeping equipment of the T2 often failed as well, leading T2s to miss their targets by running too deeply under a target. Estimates of the failure rate of T2 torpedos for one reason or another range between 20% and 40%. However, the German Navy, after much prodding by German Sub Command (BdU), poured resources into correcting the T2's flaws. Gradually, it improved, and by the end of the Norwegian Campaign problems with the contact exploder and depth-keeping gear had been solved, as well as significant strides made in improving the magnetic proximity feature. At the same time, the T2's range was increased from 3000 m to 5000 m and eventually 7500 m. By that time, however, the T2 was already being phased out of production. [edit] G7e/T3 Improvements in the design of the G7e/T2 lead directly into the production of the next model of electric torpedo for Germany's U-boat fleet. Introduced in 1942, the T3 represented a vast improvement over the early T2. The faulty exploders the T2 were scrapped in favor of a new design. The T3 had a range of 5000 m and could achieve 30 kt (about fifty percent slower than standard British and American torpedoes). With the improved of the T3 and the new exploder, the G7a steam torpedo was totally superseded and rarely used for the remainder of the war. Using the T3's perfected proximity feature, U-boat captains could effectively fire under the keel of a ship and break the back of their targets with a single torpedo, increasing the overall effectiveness of the U-boat fleet. The T3 could be fitted with both the FAT and LUT pattern running systems for convoy attacks. Though many opportunities had been missed due to the defects of the T2 torpedo, with the new T3 U-boats were deadlier than ever.