The 4th and 55th Fighter Regiments had most of the MiG-3s assigned to the Odessa Military District and their experiences on the first day of the war may be taken as typical. The 4th, an experienced unit, shot down a Romanian Bristol Blenheim reconnaissance bomber, confirmed by postwar research, and lost one aircraft which crashed into an obstacle on takeoff. The 55th was much less experienced with the MiG-3 and claimed three aircraft shot down, although recent research confirms only one German Henschel Hs 126 was 40% damaged, and suffered three pilots killed and nine aircraft lost. The most unusual case was the pair of MiG-3s dispatched from the 55th on a reconnaissance mission to Ploieşti that failed to properly calculate their fuel consumption and both were forced to land when they ran out of fuel.