As outlined before in more detail, I disagree on the tolerances of the bearings. Given the fact that the reading error in the best case maybe is +/-1 degrees, and that we have to account for the unknown gyrocompass calibration (and different unknown calibrations at each ship), I would be more conservative and suggest +/- 5 degrees as long as we don't know more about the settings of these instruments in 1941.Antonio Bonomi wrote: ↑Thu Nov 22, 2018 10:43 am
First I think we need to agree about the fact that talking about bearings and distances, ... the difference between navigational range and gun range in this case will be, ... given speed, course and relative distances, ... in the range of 0,5 degrees, … so well below the +/- 1 degree tolerance as far as the bearing goes, … and below the 1.000 yards every 10 sea miles for the distances, … so inside the tolerances I was proposing and that seems to be acceptable as far as I have read above.
Comments and an agreement about the tolerances I think are needed at this point.
Also, in the quoted paragraph, there is a comparsion between gun ranges (or navigational ranges transverse to course directions) and bearings in that direction. I don't understand how this should be compared, e.g. an error in a gun range is perpendicular to an error in the directional bearing towards the target (if we are talking about bearings to targets). Further, how do you translate gun ranges to errors measured in degrees?