The range setting is needed for a correction on a large gyro-angle at minimum range. Due to the parallax effect the torpedo needs to steer a bit further than if the target is far away. But since the target becomes a huge angle at close range you will likely hit something anyway.
However with the 'default notepad' way of targeting it is a primary part of determining how fast the target is. If that is measured incorrectly then the torpedo will go another way.
|