The initial success of the Late 15 was shortlived as the aircraft was soon found to be underpowered. From the basic design was developed the Late 19 twin-engined two-seat night-bomber, which dispensed with the lower stub wings and had open defensive machine-gun positions situated in the nose and amidships. Two were built in 1926 for the Armee de I'Air, as was the sole Late 20, an ambulance variant.
| ENGINE||2 x 270hp Lorraine 8Ād|
| Take-off weight||3960 kg||8730 lb|
| Empty weight||2000 kg||4409 lb|
| Wingspan||18.00 m||59 ft 1 in|
| Length||11.85 m||39 ft 11 in|
| Height||3.76 m||12 ft 4 in|
| Wing area||54.00 m2||581.25 sq ft|
| Max. speed||178 km/h||111 mph|
| Cruise speed||149 km/h||93 mph|
| Ceiling||4300 m||14100 ft|
| Range||560 km||348 miles|
| ARMAMENT||4machine-guns, 600kg of bombs|
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