Which tank stores approximately 40 pounds of fuel?

The collector tank is specifically designed to store approximately 40 pounds of fuel in the T-6B. Its primary function is to gather fuel from the wing tanks and distribute it to the engine. This design facilitates a consistent and adequate supply of fuel, ensuring that the engine has the necessary fuel flow for optimal operation.

The left and right wing tanks serve as the main fuel reservoirs, holding a significantly larger fuel capacity than the collector tank. The aft fuselage is not primarily used for fuel storage in this aircraft either, as the focus on fuel management and supply is handled by the wing tanks and the collector tank. Therefore, while other tanks contribute to the fuel system, it is the collector tank that specifically holds the established amount of around 40 pounds, making it the correct choice in this context.