3 decal variants:
1. Praga E-241.44, VLU Prostějov, 1938
2. Praga E-241.15, training unit, 5th Air Regiment, summer 1938
3. Praga E-241.32, pilot school, 1st Air Regiment, Cheb 1938
Aicraft was designed from ing. Jaroslav Šlechta. Total was produced about 80 machines, which was used in Czechoslovak army to March 1939 year. In war years were flown in Slovakian A.F. as trainer and reconnaissance as operational on the Eastern front. Luftwaffe also used some machines as advanced trainers in A/B schools.