It's actually relatively easy to compute the firing angles but a lot harder to ensure that the torpedo carries out the requested gyro angle turn accurately. Both the USN and KM had real problems developing reliable torpedoes and part of their reliability problems (especially for the USN) involved problems with gyro angling.marcelo_malara wrote: ↑Thu Jun 16, 2022 10:40 pm The ability to fire without pointing the sub is important in many cases. For example if you are following a target from its beam, you can do this for the time you like, verifying continually the target plot and the fire solution. If you can not angle the gyro you must continually approach the target to keep a fire solution for some time. If you use the 90° degree gyro the sub will be getting away of the target for the fire solution to be valid for some time.
Moreover, that the British engineers could not compute a salvo with gyro (which needs to solve mechanically a non linear equation), while Americans and Germans did, may imply that the computer was a little behind existing technology and less reliable than the others´powers.
Regards
The RN had a reliable torpedo and an accurate FC system from the 1st day of the war whereas it took the USN more than two years after their entry into the war to develop a reliable and accurate torpedo. USN subs fitted with RN torpedoes and RN FC would have been far more accurate than historically was the case.