Unlike other biplane fighters of its day, the Airco D.H.5 featured an unusual wing configuration. By positioning the upper wing toward the rear of the cockpit, designer Geoffrey de Havilland was able to improve the pilot's field of vision. Despite this improvement, at high altitude the D.H.5 was a poor performer due to its underpowered engine. By the end of 1917, it was removed from combat and used as a trainer.

Like the DH5, the Dolphin featured back staggered wings. This arrangement gave the pilot an unrivalled field of view, although if the aircraft turned over on landing, the pilot could be trapped, and the risk of head injuries was high. For these reasons production Dolphins were fitted with crash pylons and break-out panels. With its eight cylinder 200hp Hispano-Suiza engine, the Dolphin had outstanding high altitude performance, and was more manoeuvrable than the SE5a.

The A.R.1 entered service in early 1917, replacing the hopelessly outdated Farman 40. Unfortunately, although the tractor layout was an improvement over the F.40, and the performance was marginally better, the aircraft would not prove a significant improvement over the aircraft it was meant to replace. A.R.1s equipped no fewer than 49 escadrilles; 44 of these units served on the Western Front. In late 1917, the A.R.1 was replaced by Salmson 2 A2s and Breguet 14s

Beset by structural problems and faulty manufacture throughout its lifespan, the F.40 (known to its pilots as 'Horace') did not make a good impression. It went into action in mid 1915, but pilots complained about its lack of manoeuvrability. Changes were made, and the F.40 soldiered on. By September 1916, it was obvious to the Aviation Militaire that the F.40 was obsolete. The type was finally replaced in 1917.

These aircraft played a large role in French service as strategic day/night bombers, and in some cases as reconnaissance aircraft. By 1917 and 1918, these types were already obsolete, however they performed their duty well, taking the war to the enemy, often fighting deep behind the German lines against far superior machines.