Fuel pressure

[Crumpp]

Sounds like vapor lock....

The Hurricane has pressurized tanks as it was susceptible to vapor lock. You have to flip the switch from Atmosphere to Pressure if the fuel pressure drops to zero.

Any pressurized fuel feed system is susceptible to vapor lock. Most low wing aircraft have an electric auxiliary fuel booster pump to overcome it.

Pressuring the main tanks is a unique and not ideal solution IMHO for a piston engined fighter. It is one of the reasons why the Hurricane had such a bad reputation for catching fire so easily. Most Drop Tanks have pressurized systems and use the dynamic pressure created by the aircraft's forward motion.