Wind Tunnel
I don't know why I bother writing anything in this thread as no matter how rational or polite it gets deleted! I must be on auto delete
( That includes the MH17 thread
but finding any floating fragments whether life jackets or otherwise from the wreckage will not after all this time give an indication of the crash location.
You are not dealing with just currents and tides but also varying winds over a considerable period of time.
if the Ocean was relatively shallow there might be some small chance of finding static wreckage on the Ocean bed but with the considerable depth and pressure that chance is negligible bar an absolute miracle