Four hundred LET (Orlican NP Chocen) L-60 Brigadyrs were built and delivered by the Czechoslovak State Aircraft Factory
between 1955 and 1960. This STOL aircraft was powered by a 160 hp Praga Doris M 208B engine
and used extensive for agricultural work. Underwing spray bars and/or liquid nozzles at the
wingtips and tail were used to dispense the fertilisers or pestcides. A substantial part of
the Brigadyrs built went for export. The largest Brigadyr fleet in Czechoslovakia with more
than 60 of these aircraft was owned by Agrolet.
On 23 July 1992, the 1958-built Orlican NP Chocen L-60 S Brigadyr OK-NNH was seen at the airfield of
Roudnice nad Labem (LKRO). The aircraft was operated by Aeroklub Roudnice nad Labem.