English to Czech Tech/Engineering Aerospace / Aviation / Space utralehká letadla

aircraft was having vapor lock and that they needed to return and land

Definice:
Vapor lock is a problem caused by liquid fuel changing state to gas while still in the fuel delivery system of gasoline-fueled internal combustion engines.This disrupts the operation of the fuel pump, causing loss of feed pressure to the carburetor or fuel injection system, resulting in transient loss of power or complete stalling.