 He continued his success into 1944 : On 11 February 1944 II . / JG 11 engaged escort fighters returning from a raid on Frankfurt with Specht downing 2nd Lieutenant Richard McDonald of the 354th Fighter Group , who crashed his P @-@ 51 Mustang " Plane Jane " near Oberalben . Nine days later , ( the opening of the 8th USAAF 's " Big Week " ) Specht had to crash land on the Ærø Island as a result of technical problems with his Bf 109G . Despite that , he was back in the air the next day claiming a P @-@ 47 fighter , and a bomber and a fighter the day after , to take his tally to 30 . On 15 March II . / JG 11 lost six killed in action , two wounded , and eight aircraft lost , resulting in Specht declaring the unit non @-@ operational for six weeks to rest and replace losses . 
