Which hand signal from a Rescue Swimmer (RS) signifies that they are preparing to deploy a raft?

A clenched fists signal with arms crossed overhead is a standard hand signal used by Rescue Swimmers to indicate that they are preparing to deploy a raft. This specific gesture is clear and visible from a distance, allowing onboard personnel and other team members to understand that action is imminent and the deployment of the raft is about to occur. The crossed arms create a distinctive silhouette, making it unmistakable in a variety of conditions, including those that might involve rough seas or reduced visibility.

In emergency situations where clear communication is vital, using a standardized set of signals like this allows for seamless coordination and safety. Proper signaling can ensure that everyone involved in a rescue is aware of the actions being taken, thus promoting situational awareness and preparedness for the next step in the rescue operation.