In 1944, following the cancellation of the 288 programme, the surviving A and C series prototypes were hurriedly fitted with defensive armament and equipment and deployed as reconnaissance bombers on the Western Front.
En 1944, despois da cancelación do programa, os prototipos das series A e C supervivintes equipáronse apresuradamente con armamento defensivo e fixeron labores de recoñecemento na fronte leste.