Concerns about getting out of an airplane may have validity, but emergency egress is always a potential issue.
But, more to the point, you don't necessarily have to carry a lot of stuff on your person. Here's an article about a survival episode that should serve as an example:
http://masterwoodsman.com/2013/50-year- ... -survival/Helen Klaben and Ralph Flores survived 49 days and nights in the northern Yukon during the winter. Temperatures of -42 were recorded while they were out there. They carried NO "survival kit" in the airplane prior to the crash. Both were injured in the accident. Neither of them had ANY outdoors experience or survival training. Frankly, that's a pretty dire set of circumstances.
But, they both survived. Now, granted, the airplane didn't burn after the accident, so they had access to the stuff in the plane, which happened to be their clothing and not much else.
So, what were the "tools" that allowed these two to survive this dire circumstance?
1) Ralph was able to start and sustain a fire. And, they had access to a lot of firewood. Huge deal here, it provided heat and permitted them to melt snow for drinking water.
2) They were well dressed for the cold, and they had most of their cold weather clothes with them....no sleeping bags, but they had plenty of clothes to stay warm.
3) They were able to remain hydrated (see 1 above). In many cases of people who are lost in cold weather, the body is often found without boots, coat, etc. Dehydration is your enemy in a survival situation. I agree that drinking clean water is important, but drinking water is absolutely essential, even more so in cold weather than hot weather.
4) They had books, lots of books. Between this and their differences in religion, they managed to keep their minds off the situation they were in. Keeping a positive attitude is essential in a survival situation.
5) While they obeyed the general advice to stay with the wreck, they finally realized that they were located in such dense cover that they simply couldn't be seen from above. As soon as they relocated, they were located.
So, what can we learn from their experience? It's not all the stuff that permits one to survive a difficult situation....it's the attitude, a few tools, and yes, a bit of luck.
The point is, you don't necessarily need a big load bearing vest to carry a very functional survival kit. Imagine if Ralph and Helen had had a PLB (and of course, the current SAR/SAT system existed back then). They'd have been out of there within 24 hours. 48 at the most.
We have that tool available to us. Add to that a signal mirror and a small flashlight, and you're prepared for close range signaling as well.
Ralph got a fire going. Fire can be an incredibly important tool for a lot of reasons. Make certain you have at least two or three ways to start a fire. And, have you practiced starting fires, in all kinds of conditions? If not, that's easy enough to do around home. Practice starting fires.
These were properly clothed to survive in the country where they crashed, even in -40 temperatures. Are you always dressed as appropriate to survive in the country over which you fly? Are those shorts, T Shirt and flip flops going to keep you warm, even in the summer in Idaho back country?
They melted snow for drinking water, an essential for survival. Do you have some sort of vessel to gather water in? A collapsible water bottle stows nicely in a pocket. And, you might add some iodine tabs to that, just for safety's sake. But, you MUST drink water.
Do you ALWAYS carry a knife? A good functional knife? Hammer has posted great ideas on knives on a different thread....good information. But, the knife that's clipped to your pocket most every day is the knife that you're apt to have with you when the chips are down.
Now, stuff a few yards of parachute cord into your vest or jacket or coverall pockets, and you've got a VERY basic survival kit, on your person. It's comfortable enough that you'll probably carry it any time you fly. And, THAT is the point.
If you're comfortable in carrying a heavier, bulkier vest, that's great. Watch Greg's video, learn from it, and build your own vest. When I was working, our policy was that we were to always wear a survival vest when flying. I wore an inflatable vest in summer and a military mesh vest in winter with a pretty large load in them. It was the job, and I was getting paid to do the job. And, I was flying in pretty unforgiving country.
But as others have noted here, carry at LEAST the basics, become proficient with them, and then don't leave home without them.
And, for heaven's sake, carry a good, comprehensive kit in the back of the airplane as well. In this case, we're talking about what you need to survive if the plane sinks or burns. If it doesn't, then you'll have access to the stuff in the baggage compartment. Now we're talking luxury!!
MTV