What should both powerboats do when approaching each other head-on?

When two powerboats are approaching each other head-on, the correct action is for both vessels to turn to their right. This is based on the "Rules of the Road," which are established to prevent collisions and ensure safe navigation on the water. By both turning to the right, the vessels create a safe passage between them, minimizing the risk of collision.

It's important to understand that turning left would not be appropriate in this situation, as it would bring the vessels closer together, increasing the likelihood of a collision. Similarly, simply continuing straight would also result in a head-on encounter, which could be dangerous. Signaling each other is certainly a good practice in boating, but it does not address the immediate need to maneuver to avoid a collision. Therefore, the most effective and safest response is for both boats to turn to their right.