What is the purpose of air tanks in a lifeboat?

The purpose of air tanks in a lifeboat is to keep the boat afloat if it becomes flooded. These tanks are designed to trap air, which contributes to the overall buoyancy of the vessel. When a lifeboat is compromised and water enters, the air stored within these tanks helps to displace some of that water, allowing the lifeboat to maintain a viable level of floatation and stability. This feature is crucial in emergency situations, as it enhances the lifeboat's ability to stay above water and support the individuals on board, effectively improving their chances of survival.

While maintaining a comfortable temperature, providing oxygen, and reducing the boat's weight are all important considerations in the design of a lifeboat, they do not directly pertain to the specific function of air tanks. The design of lifeboats primarily focuses on safety and buoyancy, making the role of air tanks essential in ensuring the vessel can support its occupants in the face of flooding incidents.