Check out this great image of a row of camouflaged Army Vultee-Stinson Sentinel L-5s undergoing maintenance “somewhere in Korea” on 12 July 1950.
The pokey little L-5, introduced late in WWII to replace the Army’s Grasshoppers, was Big Green’s primary liaison and spotting aircraft in Korea– a conflict that came just three years after the Air Force was split away from its parent service, taking just about everything fixed-wing with it in the move.
Notably, unlike the Grasshoppers, Birdogs, and Piper Cubs used by the Army for the same purpose, the L-5 was purpose-designed for military use and had no commercial variant.
Capable of buzzing around at 100 knots for three hours or so, the L-5 was rugged and could operate from just about anywhere.
The Army phased out the L-5 by 1962