Divided by 2 or 1.9 doesn't work here.
Have to divide by 1.85 to match the result given by game speed info (when i enable it)
It works a charm from 45° AOB each side, but have to be not too far away from boat.
Starting chrono from exact bow to exact stern with vertical periscope line is very important.
BTW, i use same technique in SH4 with OTC mod (wich is the only mod who gives boats length in ID manual) and it works as good
