What is the name of the safety device that shuts off the engine if the operator is thrown from the proper position?

The safety device that allows the engine to shut off if the operator is thrown from the proper position is known as the emergency ignition safety switch. This device is crucial for ensuring the safety of the operator and others on the water. When the operator is ejected from the boat or loses control, the activation of the switch prevents the boat from continuing to operate in an uncontrolled manner, significantly reducing the risk of accidents or further injuries.

This type of safety feature is designed to essentially "kill" the engine, hence the colloquial term "kill switch," which some may use to describe this device. However, the formal name that reflects its emergency function is the emergency ignition safety switch. It is also important to note that while life vests, fire extinguishers, and other safety equipment are important, they serve different purposes in ensuring boating safety.