It had good handling, high stability and spin resistance, which made it a suitable trainer for larger aircraft.

The first prototype was designated BM 5a and was fitted with a 220 hp (160 kW) Austro-Daimler inline engine.

The second prototype, flown on 15 April 1929, was designated BM 5b and was fitted with a 230 hp (170 kW) SPA-6A inline engine, then was refitted in August with a 320 hp (240 kW) Hispano-Suiza 8Fb V-engine and redesignated BM 5c (it was meant to utilize engine stores from the Bristol F.2 Fighter).

Fuel tanks in upper wings and fuselage, capacity: 235-270 L. BM 5s were used in the Polish Air Force for training from 1930, in a central pilots' school in Dęblin.

Five BM 5c's were used in Naval Air Unit (MDLot) in Puck, but most were written off in the second half of 1930s and replaced with the PWS-26.