However, HSA and HSD accounted for only 25% of the Hawker Siddeley business by this time, and the non-aviation and foreign interests were retained by a holding company known as Hawker Siddeley Group Plc after 1980.
Porén, HSA e HSD só representaban o 25% dos negocios de Hawker Siddeley nesa época, e os intereses estranxeiros e non relacionados coa aviación mantivéronse como unha compañía coñecida como Hawker Siddeley Group Plc despois de 1980.