My question relates to a recent conversation with one of our Special Forces boys concerning the relative effectiveness of smoke and dye in a sea rescue [ pilot down, man overboard etc ]. My friend is adamant dye is preferable to smoke, especially in gale conditions. His speciality has been helo rescue and it has been SF experience that smoke is blown horizontally across the sea surface and quickly dispersed. Dye is much more effective in air-sea rescue. In fact, my friend relates how on occasion they had to tape together several of those large military smoke canisters to get any real effect in rough conditions. Obviously we are talking daytime rescue. Anyone with thoughts, especially the visibility issue, and the size, weight, longevity of smoke v dye?<br>Cheers, Peter Rattenbury, Australia.