Why Princess turbines would not suit Flower-class escorts

Could Britain put the Princess's turbine technology into Flower-class corvettes or submarines?

The fuel requirement makes these engines a poor fit for long-endurance escorts and submarines; short-range motor torpedo boats are the more suitable application.

Fuel demand is the objection to putting the new turbine technology into Flower-class corvettes. Their roughly 2,750-indicated-horsepower machinery used reciprocating triple-expansion engines and boilers that could be obtained readily. An escort expected to operate for weeks needs a different balance of power and endurance from a motor torpedo boat. Submarines are rejected as another unsuitable application for these thirsty engines. The wider counterfactual still creates a large fuel requirement across British forces. Introducing the technology in 1935 could at least reveal that demand early enough to encourage additional fuel stockpiling.