Providing some airborne muscle

Original Toronto Star caption: Providing some airborne muscle. A helicopter was called in to lift 4;000-pound air exchange system onto roof of the OSF Industries Ltd. building because the system had to be placed more than 100 feet from the edge-making it impossible to use cranes. The leased 375;000-square foot plant at Steeles and Dixie Rd; brings three OSF divisions under one roof.