"A person can survive a lot longer than that in tropical water mases and other summer waters mases plus water mases tempatures are rising."
The issue with a MOB locator is not survival time. If you can't get the boat and the MOB back together again within a half hour or an hour at the most, the odds are that the water is so rough, the weather so adverse, the situation so grim, that the MOB won't last 24 hours in the water.
Have you done MOB drills? Have someone throw a life-size dummy in the water while the rest of the crew is down below. Wait 30 seconds, just thirty seconds, and then have everyone come up and try to locate the dummy. With any chop in the water, any swells, any low sun blinding you, you will never see the dummy again.
"Ais. The cost for a boat owner is significate and"
No really? Even the fossils like me are seeing AIS is a great way to keep clear of commercial traffic, tow strings, and other moving obstructions. $212 will buy you a top brand VHF with AIS receiver built in.
Amazon.com: Standard STD-GX2000-B 25-Watt Fixed Mount Matrix VHF Radio with AIS Display and Loudhailer (Black): Car Electronics
That's not lunch money, but for any kind of offshore racing? That IS less than many bar bills for boat crews. It shouldn't be a stopper. And if anything, it might be another good business opportunity. Why not rent one, the same way many of us have RENTED the mandatory life rafts for major races? Again, it isn't cheap, but everyone on the boat ponies up, and the deed is done.
Disc brakes and seat belts and xenon headlights and windshield wipers all raised the price of cars. Still, I wouldn't buy one without them. And I wouldn't race
one without a good bit more invested in safety equipment.
"DSC for all vhf as long as non dsc vhf radios are available at less cost as in our s & r area we don't have dsc and our govt will probaly never install it either despite"
Well, for that matter your national sailing authority has the right to waive all those expensive new safety requirements and set the bar as casually, or as low, as you prefer. That's assuming you join it, which will probably cost money, and raise your voice there. If the racers and the clubs participate and say "No" they will be heard.
But the price of all this newfangled electronics? Really is dirt cheap compared to what electronics used to be, and if it is mandated in all equipment, it should drop even further. Many racers spend more on cable tv and other frills, making it just a question of priorities. The bar and the tube? Or the safety gear? And if really is too tight, well, maybe that's why a boat is still considered an expensive luxury. Even a small old used boat.