Mrs 22/04 said to me last night; why don't the recorders float; they could then be recovered with the seats bodies etc.
Set me thinking- put them in a box that it triggerd to release or eject by presence of water and pressure (depth) - is this a viable idea?
Wouldnt be new, the famous Lockheed 104 Starfighter had such device, an airfoil shaped floatable container behind the cockpit on top of the fuselage...
skadi