The U-boats did use hydrophone based speed evaluation

Ligne Maginot · 08-30-13, 07:20 PM

In this article written by Hitman, you can read that not only the U-552 implement this tactic. There are also references in logbooks of U-505.
Determining the speed from the revolutions account provided only a general idea about the speed of a ship.

http://www.u-historia.com/uhistoria/.../intecnico.htm

The article is called "Adquisición de datos para las soluciones de tiro en los U-boot", in the technical section. The page does not let me give the direct link.

Best Regards.

08-30-13, 07:20 PM	#3
Ligne Maginot Gunner Join Date: Dec 2012 Posts: 94 Downloads: 141 Uploads: 0	In this article written by Hitman, you can read that not only the U-552 implement this tactic. There are also references in logbooks of U-505. Determining the speed from the revolutions account provided only a general idea about the speed of a ship. http://www.u-historia.com/uhistoria/.../intecnico.htm The article is called "Adquisición de datos para las soluciones de tiro en los U-boot", in the technical section. The page does not let me give the direct link. Best Regards. __________________ NYGM Tonnage War V2.5 – Stand Alone Version NYGM3_New NYGM3_6D Supplement to V16B1 (JSGME) Stiebler4B_Addon_for_V16B1 Hitman Optics NYGM 3.6 (Fixed) Last edited by Ligne Maginot; 08-30-13 at 08:39 PM.