Strake (aeronautics)

Nose, wing and ventral strakes
Vortices over the wing strakes of an F/A-18E Super Hornet

In aviation, a strake is an aerodynamic surface generally mounted on the fuselage of an aircraft to improve the flight characteristics either by controlling the airflow (acting as large vortex generators) or by a simple stabilising effect.

In general a strake is longer than it is wide, in contrast to a winglet or a moustache.

Leading edge root extensions (LERX) are also sometimes referred to as wing strakes.