TECHNOLOGY MARCHES ON: The Underwater Wheelchair. “Ms Austin, who has been a wheelchair user since 1996, developed the chair with help from dive experts and academics. . . . Finding a suitable dive propulsion vehicle to propel the chair was initially difficult because most propeller models were designed to be hand-held and Ms Austin lacked the strength to hold on to them. Eventually she trialled a model that was designed for divers with disabilities – and then added two to the wheelchair.”