Model Variants (Including Prototypes)
LeO 25 - Night Bomber Prototype; fitted with Hispano-Suiza 12Hb engines; single example.
LeO 252 - Bomber; fitted with Hispano-Suiza 12Mbr engines; single example.
LeO 253 - Bomber similar to LeO 252; 3 examples produced.
LeO H-254 - Seaplane based on the LeO 252; 2 examples produced.
LeO H-255 - Speed Racer Conversion Model based on the LeO H-254; fitted with supercharged Hispano-Suiza 12Xbrs engines; single example.
LeO H-256 - Based on the LeO H-254 with wider wing span; single example.
LeO H-257 - Fitted with Gnome-Rhone 14Kbrs engines; enclosed cockpit; single example for French Navy.
LeO H-257bis - Definitive Production Model; based on the LeO H-257; enclosed nose-gunners position; fitted with Gnome-Rhone 14Kirs/Kjrs engines; reinforced airframe; 60 examples produced.
LeO H-258 - Similar to H-257bis production model; fitted with Hispano-Suiza 12Nbr engines; French Navy usage; 26 examples produced.
LeO H-259 - Fitted with Hispano-Suiza 12Ydrs/Yfrs engines; single example.