Quote:
Originally Posted by Aequitas
beta = arccos{sqrt[1-(vt*sin(alpha)/v)^2]},
where beta is the angle of interception (counting from 0 course),
vt - target's speed,
alpha - AoB of target,
v - speed of own vessel,
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beta° = (180/pi)(arccos{sqrt[1-(vt*sin(alpha°)/v)^2]}),
where beta° + bearingTotarget° := interceptcourse°,
vt:= target's speed,
alpha°:= AoB of target
v:= speed of own vessel,
pi:= 3.14159265