The problem for me is that if you shoot against a target really near, the angular correction in the gyro angle introduced by the TDC in order to compensate for the first straight run of the torpedo, before turning to the gyro bearing, is not enough or not accurate. If you shoot at the gyro bearing, the straight run is in the same direction and the error is supressed.
This error would become the less important, the farther is the target , but at close range is enough to cause a miss....
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