Proas are ships that can receive the wind, from one and only side. They can't tack, that's why they must Shunt.

Getting caught aback, or getting 'backwinded' is a huge problem! Traditional vessels with Oceanic Lateen rig, get in huge trouble once aback...

The JR, is a boss in this situation. I was shocked to learn how one of the most frightening moments all shunters have, this rig solves in a blink. The Vid tells the story of a Junk Rigged Balkan Shunter.

Keep Shunting,

Balkan Shipyards

https://youtu.be/WAlw_ar1Ils?si=fxiibfkwzXXgneBl