What is the purpose of the transom on a boat?

The transom is the vertical surface located at the rear of the hull of a boat. Its primary function is to provide structural support to the boat's stern and is pivotal in the design and performance of the vessel. This part of the boat is crucial as it often houses various components such as the motor mounts, making it integral to the propulsion system when an outboard motor is used. The design and angle of the transom can also affect the boat's performance in the water, influencing factors like speed and stability. Understanding the function of the transom is essential for boat maintenance and operation, as it directly relates to the vessel's performance and overall seaworthiness.