Alexander Kazakov flew on Morane-Saulnier, Spad - SА2, Nieuport 11 and Nieuport 17 planes and is alleged to have the largest number of victories over enemy aircraft among Imperial Russian Air Force pilots.
On 31 March 1915 Alexander Kazakov successfully repeated the aerial ramming attack first attempted by Pyotr Nesterov, using a Morane-Saulnier G as his piloted projectile.