ESDU 80035 provides data on the buckling of outstanding flanges subjected to stresses which vary linearly or parabolically across their width. The buckling stresses are given for long thin rectangular plates in which one of the long edges is elastically restrained against rotation and the other is free and in which both ends perpendicular to the loading are simply-supported. The data presented are strictly only applicable to cases where the stress and its distribution across the section remain constant along the length of the outstanding flange and are therefore not applicable to external loading distributions which diffuse rapidly into the outstand.