Launch and underwater trajectory test vehicle

Claim 1

A LAUNCH AND UNDERWATER TRAJECTORY TEST VEHICLE TO BE FIRED FROM AN UNDERWATER LAUNCHER TOWARDS THE WATER SURFACE, SAID VEHICLE COMPRISING A MAIN BODY STRUCTURE, A FLUID BALLAST CONTAINED BY SAID MAIN BODY STRUCTURE, A CONE STRUCTURE, MEANS FOR ATTACHING SAID CONE STRUCTURE TO SAID MAIN BODY STRUCTURE TO ENABLE SAID CONE STRUCTURE TO BE READILY DETACHED UNDER THE INFLUENCE OF FLUID PRESSURE, PISTON DEBALLASTING MEANS SLIDABLY SUPPORTED WITHIN SAID MAIN BODY FOR CREATING SAID FLUID PRESSURE AS THE PISTON DEBALLASTING MEANS IS MOVED THEREIN TO EJECT SAID CONE STRUCTURE AND FLUID BALLAST IN THE FORWARD LONGITUDINAL DIRECTION OF VEHICLE MOTION AND TO RENDER SAID VEHICLE BUOYANT, A NORMALLY SEALED CONTAINER DISPOSED WITHIN THE BODY STRUCTURE FOR SLIDABLY SUPPORTING THE PISTON DEBALLASTING MEANS, A QUANTITY OF FLUID UNDER PRESSURE WITHIN SAID CONTAINER FOR MOVING SAID PISTON DEBALLASTING MEANS AS THE CONTAINER IS UNSEALED UPON BROACH OF SAID VEHICLE, WHEREBY THE FORWARD MOMENTUM OF SAID VEHICLE IS RAPIDLY DISSIPATED UPON BROACH AND SAID VEHICLE MAY BE READILY RECOVERED IN ITS BUOYANT STATE, AND MEANS INCLUDING A PYROTECHNIC ACTUATED DEVICE FOR UNSEALING SAID CONTAINER UPON BROACH OF THE VEHICLE.