Van Haegenborgh was noticed in the early years of The Gentse Feesten and The Night of the Proms as an artist who created stage structures out of the ordinary. No one had done this before. He designed monumental sculptures suitable for suspension above stages, adding an extra dimension to the functional. "in '83 I realized 'De Vlieger'. It was the first sculpture of my entire oeuvre and it received a lot of attention in the media. It was also added to the archive of the 'Institut für leichte Flächentragwerke ' in Stuttgart. The architectural constructive need is very much present in me. Parallel to the development of images, I keep designing and realizing construction. Functional steel constructions using canvas and the cheapest materials are most suitable for realization through sponsoring."