Negative value?
no, as the AOB exceeds 90°, the result obtained must be subtracted from 180.
A.3 [In cases when ship is moving AWAY from you] AOB when exceeding 90 Degrees.
1. If the ship is moving away exceeding 90 degrees, use formula:
180 Minus Determined AOB from the steps taking in A.2.
source:
https://steamcommunity.com/sharedfil...earchtext=disc
bstanko6, I checked the ship that I had a problem with, and it was an error in notation of mast height that was the cause of it