If a sailboat and a motorboat are both underway when is the sailboat the giveaway vessel?

In general, a sailboat is the give-way vessel when it is under sail alone and encounters a motorboat that is underway. According to the International Regulations for Preventing Collisions at Sea (COLREGs), the sailboat must take action to avoid a collision. However, if the sailboat is using its engine, it may be considered the stand-on vessel, depending on the specific circumstances of the encounter. Always be aware of the navigation rules applicable to your situation.