What does Vsa stand for?

Vsa stands for "By Visual Reference to the Ground"

How to abbreviate "By Visual Reference to the Ground"?

"By Visual Reference to the Ground" can be abbreviated as Vsa

What is the meaning of Vsa abbreviation?

The meaning of Vsa abbreviation is "By Visual Reference to the Ground"

What does Vsa mean?

Vsa as abbreviation means "By Visual Reference to the Ground"