Lublin R-XIII
Lublin R-XIII - prototype of the upper-level reconnaissance and communications aircraft
Lublin R-XIIIA - initial series
Lublin R-XIIIB - second series, new orbiter and modified ailerons, 49 pcs including R-XIIIA
Lublin R-XIIIS - R-XIIIB coupling conversion, 4 pcs
Lublin R-XIIIt - "blind" for flight training without instruments, 8 R-XIIIB conversions
Lublin R-XIIIDr - special remote derived from R-XIIIB, 1 pc
Lublin R-XIIIC - Townend ring variant, 48 pcs
Lublin R-XIIIC(t) - blind, 4 conversions
Lublin R-XIIIC(h) - target towing conversion, 1 pc
Lublin R-XIIID - front engine cover with adjustable louvers, carburetor with filter, modified cockpit shape; 95 pcs
Lublin R-XIIID(S) - coupling conversion, 3 pcs
Lublin R-XIIIbis - float equivalent of R-XIIIB, 3 pcs
Lublin R-XIIIter - floatplane equivalent of R-XIIID, 10 pcs
Lublin R-XIIIG - equivalent of R-XIIIter with wheeled or float landing gear and metal propeller, 7 units
Lublin R-XIIIE - prototype upgrade with Gnome-Rhone Titan Major engine
Lublin R-XIIIF - upgrade with Skoda Mors I engine, 58 pcs
Lublin R-XIIIF Aerolog - meteorological conversion, 1 pcs
Lublin R-XIV - training variant, 14 pcs
Lublin R-XIX - experimental with butterfly tail surfaces, conversion of R-XIII prototype