Jibe! That’s the word! Thank you very much.
I looked it up. Very, very interesting.
1. To go from one Tack to the other when running with the wind coming over the Stern.
2. The moment when the Boom swings across the Hull while changing tacks in this manner.
If handeled correctly a Fore and Aft rigged vessel should be able to Jibe safely regardless of wind strength. This is accomplished through easing Preventer tackle (if any) and by hauling in the main sheets so that there is less travel for the main Boom during the Jibe.
An unintentional Jibe - which can be the result of sailing-by-the-lea can be very dangerous and can cause serious damage to the Ship.