There is an easy, inexpensive way to locate aircraft like flight 370 in the future. Install an automotive type air bag in the tail or other parts of the plane with an automotive type crash sensor. The air bag would detach from the craft and float. The air bag would be equipped with a GPS, pinger and Satellite phone that will send out all the information you need to go right to the crash site. The air bag will keep an added black box afloat for days. This would be cheap enough to fit on ALL planes and could save lives in many crashes. It would also save Millions of Tax Dollars in search efforts.