If as per above you can tack and the other boat(s) have time and room as per above then you can do it.

YOu can aslo make it clear you are going to tack; as they are close, you can also pinch for a few seconds and they will then get the picture too.

With F16's they tack so quickly, you should be aiming for 10 seconds or below for wire to wire, so unless they are real close, it should not be a problem.