 It was later divested by Hawker Siddeley Canada and merged with de Havilland Canada's Special Products division to form SPAR Aerospace Ltd. (Special Products and Applied Research), developer of the Canadarm remote manipulator system for the Space Shuttle.It is today a part of MacDonald Dettwiler as MD Robotics, a subsidiary of its MDA Space Missions division.In 1962, the Hawker Siddeley Group formally dissolved A.V.