You may want to google Mark O'Connell, Moultonborough, snowmobile ice drowning, February 11, 2017 who was one of three snowmobilers, ages 62, 67, and 15 who all drowned while snowmobiling on Lake Winnipesaukee on that day. If I recall correct, it was the Saturday of the ice fishing derby.
The Mark O'Connell Foundation donated a brand new, bright orange, hovercraft to the Moultonborough Fire Dept on November 30, 2018.
http://www.themarkoconnellfoundation.../30/hovercraft
If I mention that a five dollar noodle belt could have made the difference, everyone will start calling me an inconsiderate jerk, except it's definitely true. Without wearing any flotation, by the time this hovercraft gets out there to you, you'll likely be frozen stiff, and sunk to the bottom ..... drowned ..... and very dead.
A healthy, strong person with determination and the will to survive, can survive for up to 90-minutes in 34-degree water. Your arms, hands, legs, and feet will all freeze but as long as you stay afloat without inhaling water and drowning, you can survive for up to 90-minutes if you have flotation, like a noodle belt worn around your waist and under your coat, keeping you afloat. Once in the water, the noodle belt will probably slide up to be under your arms and arm pits and allows for good strong use of your arms and hands before they freeze up.
www.youtube.com/watch?v=CHUSkWrpKzQ ..... A staged ice water rescue with Canada-made, air boat, similar to M-boro Fire Dept air boat made by the Port Carling, Ontario, Fire Dept. Something tells me the victim is wearing a dry suit and pfd under his outer clothes along with the large helmet?
www.youtube.com/watch?v=8oclfptihD8 ..... This is the real deal ...... this dog is not a staged "victim" acting out an ice water rescue ........ dog stuck in icy lake cries to rescuers for help ...... noodles to the rescue ...... arf-arf-arf.