The Luftwaffe had flown 1,044 sorties on 11 June, dropping 954 tons of bombs. The consumption rate of ammunition was putting von Richthofen's logistical network under strain and he could no longer afford to fly massed bombing raids. On 11 June, he surmised there was less than two days worth of munitions left, requiring a change of tactics. Instead of carpet bombing, fewer targets would be attacked simultaneously, and aircraft would strike at designated targets in long and narrow lines. This was designed to maintain accurate pressure without wasting ordnance. Even this failed to alleviate shortages in the long term. By 17 June, scarcity of aviation fuel meant the Luftwaffe dropped only 800 instead of the planned 1,000 tons of bombs. Adding to the Luftwaffe's troubles in the sector, von Richthofen was transferred to prepare the Corps' Headquarters near Kursk to support the upcoming Operation Blue, the German summer offensive in southern Russia. He retained formal command, at least until given control of Luftflotte 4, but Wolfgang von Wild took over air operations over Sevastopol.