One of the specifications issued by the new commander of Polish aviation General Józef Zając in the spring of 1939 was for a Jockey-class plane, a light, inexpensive and easy to produce interceptor.
The Jockeys were to be used in accordance with the French concept of "chimney flights", that is for aerial defence of valuable factories and other military targets behind friendly lines.
The plane was to rise quickly after the alarm is sounded and attack formations of enemy bombers in a dive, thus enhancing its speed.
The RWD 25 was proposed as a single-seat cantilever low-wing monoplane fighter powered by an 800 hp (597 kW) Gnome-Rhône Mars 14M05 radial engine.
Although the RWD received orders for a prototype and a full-scale mock-up for further tests, the outbreak of World War II interrupted the development and no planes were ever built.