To give it more firepower against tanks, the RAF mounted two underwing pod-mounted 40 mm Vickers S cannon on the Hawker Hurricane (as the Mk. IID), which saw service in North Africa in 1942 and the Hawker Typhoon was given HE rockets though these were more effective against other ground vehicles. From March 1943 the Red Army Air Force produced the more agile Yakovlev Yak-9T (37 mm cannon) and K (45 mm cannon) bomber interceptor also used for ground attack, with a single example of either gun in "motornaya pushka" mounts attached to the engine's gear reduction unit, that had either one of them firing through a hollow-center propeller shaft.