Does type IIA, IIB, IIC and/or IID U-boots have any type of TDC?

best regars:
-Artur

SnakeDoc Wrote:
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> That's right - Torpedo Data Computer used by US
> Navy consisted of two parts - Position Keeper and
> Angle Solver, while the Torpedo Vorhalt Rechner
> used on German Uboats was just Angle Solver.
>
> US Navy TDC has also useful feature called Sound
> Bearing Converter, which allowed passing the
> bearings from the sonar directly to the Position
> Keeper.
>
> The advantages of German TVRe were: smaller size
> than respective part of US TDC and faster solving
> the angles for the salvo shots (almost immediately
> comparing to lasting long minutes in TDC).
>
> The smaller size was the result of usage
> 3-dimensional cams (equivalents of nowadays lookup
> tables) instead of multipliers, resolvers and
> proportionators.
>
> I think, that TVRe was implemented only as Angles
> Solver because of differences in the US Navy and
> Kriegsmarine doctrines - the position keeping was
> the feature useful in the Pacific theathre, while
> tracing and chasing single ships, but in the
> convoy battles in the Atlantic it was not
> necessary.
>
>
> --
> Regards
> Maciek