Velocity made good (Vmg) from wikipedia is the velocity toward a mark. To compute Vmg the following quantities must be know:
- Yacht speed — Vs
- Apparent wind direction — (B – lambda)
- Apparent wind speed — Va
- Leeway Angle — lambda
“Vmg is given by Vs cos gamma. The angle between the yacht’s track and her fore-and-aft axis is the leeway angle lambda”
I think that the tiny 1/2 looking like sym
bol exponent position under the devision sign is 1/lambda.