During the Battle of Britain, from July to October 1940, the Spitfire was perceived by the public to be the main RAF fighter, though the more numerous Hawker Hurricane shouldered a greater proportion of the burden against Nazi Germany's air force, the Luftwaffe. Spitfire units, however, had a lower attrition rate and a higher victory-to-loss ratio than those flying Hurricanes because of its higher performance. Spitfires in general were tasked with engaging Luftwaffe fighters (mainly Messerschmitt Bf 109E series aircraft which were a close match for the Spitfire)during the Battle.