The Sailplane Air Operations rules state;
“Sailplanes operated over areas in which search and rescue (SAR) would be especially difficult shall be equipped with such life-saving and signalling equipment as appropriate to the area overflown”
“Sailplanes operated across land areas in which search and rescue would be especially difficult should be equipped with the following:
(a) at least one ELT, one PLB or one equivalent registered emergency locator;
(b) signalling equipment for making distress signals; and
(c) additional survival equipment for the route to be flown taking account of the number of persons on board.”
Pilots and owners are reminded that even where flying in areas where search and rescue would not be especially difficult, the difference between being found quickly or not can be crucially important. FLARM can also be used to support search and rescue providing owners take some simple steps with the FLARM ID. You can learn more here.