What can happen if aviation gasoline vaporizes too readily?

When aviation gasoline vaporizes too readily, one significant consequence is that fuel lines may become filled with vapor. In the context of an aircraft's fuel system, vaporization refers to the transition of liquid fuel into a gas, which can occur due to changes in temperature and pressure.

If the gasoline vaporizes too easily, the amount of liquid fuel available to be delivered to the engine is reduced, leading to insufficient fuel flow. This is particularly problematic because the fuel system is designed to transport liquid fuel, and when vapor replaces liquid fuel in the fuel lines, it can lead to vapor lock. This condition prevents the engine from receiving the necessary liquid fuel it needs to operate efficiently or at all, potentially causing performance issues.

Thus, the filling of fuel lines with vapor directly impacts the fuel system's effectiveness and the engine's performance, emphasizing the importance of maintaining appropriate operating conditions to prevent excessive vaporization.