as well as improving response time, the ripper group claims its system can reduce cost. could have one drone, for instance. no, it is like another bit of equipment for us. for example, ourjet skis, you know, people were a bit worried aboutjet skis, then maybe we might have to less lifeguards because we have a jet ski now, but you learn to use them in the correct way and the correct conditions, so in no way it's going to replace people, in no way is it going to replace helicopter rescues. it's just another bit of equipment we can use to save someone‘s life, potentially. it's not all rosy, though — these are aircraft working near water and people. recently, one of their drones malfunctions and had to do a crash—landing in byron bay. they patrol hourly for less than 30 minutes, so they're only watching half the time. and, of course, there is the weather — high winds or rain means no flying for little ripper. other waterborne solutions exist, such as the static clever buoy by smart marine systems. it uses sonar to detect distinctive shark movements and sends a text message t