Dr. Christopher Brooks spent the better part of his life, in the navy and after, struggling to make flying in a helicopter over water much safer. Between 1978 and 1998, he served in postings at the Defence and Civil Institute of Environmental Medicine (DCIEM), including for eight years as deputy director. There, he researched and published on marine survival problems extensively, including life jackets and survival suits, as a leading expert in the field and helped foster improvements in marine standards worldwide. In writing this detailed history of helicopter flight safety practices, he hoped that many would benefit, particularly aircrew and passengers, but also scientists, engineers, clothing designers, and regulators. Through a theoretical and practical understanding, he describes watershed moments in research over the decades, highlighting major Canadian achievements in the field and situating the DCIEM as a key contributor.