In early 1935 an improved variant R-XXA was developed. It had more streamlined fuselage, covered machine gun turrets with 6 machine guns, smaller span of 23.65 m and stronger engines 750 hp Pegasus III. The Polish Navy ordered 6 production aircraft in the beginning of 1935, with planned deliveries by April 1937, and Plage i Laśkiewicz prepared to build the R-XXA prototype. However, the factory at that time was about to bankrupt (caused by a policy of Ministry of Defence, refusing to buy Lublin R-XIIIf planes), and on 23 November 1935 the Navy Headquarters broke off an order for R-XXA due to long development.