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PAGE TWO OF THREE HUNDRED FIFTY TO THREE HUNDRED MILS AT_A RANGE OF APPROXI- MATELY THIRTY THOUSAND YARDS, APPROXIMATEALTITUDE THIRTYONE. THOUSAND EEET, THE SET TRACK AUTOMATICALLY IS AZIMUTH AND ELEVATION AND WAS AIDED RANGE TRACKING AND CAPABLE OF TRACKING TARGETS UP TO A SPEED OF SEVEN HUNDRED MPH. IN THIS CASE, HOWEVER, BOTH SETS FOUND IT IM- POSSIBLE TO TRACK THE TARGET IN RANGE DUE TO ITS SPEED AND THE OPER- ATORS HAD TO RESORT TO MANUAL RANGE TRACKING IN ORDER TO HOLD THE TARGET. THE TARGET WAS TRACKED IN THIS MANNER TO THE MAXIMUM TRACK- ING RANGE OF THIRTYTWO THOUSAND YARDS. THE OPERATOR SAID THE TARGET TO_BE MOVING AT A SPEED SEVERAL HUNDRED MPH HIGHER THAN THE MAXIMUM AIDED TRACKING ABILITY.OF.THE.RADAR SETS» THIS TARGET PROVIDED AN EX- THE MAXIMUM RANGE, HOWEVER, ECHO SIGNAL OCCASIONALLY FELL OFF 10 A LEVEL BELOW NORMAL RETURN. THESE CHANGES COINCIDED WITH MANEUVERS OF THE TARGET. ON SEPTEMBER ELEVEN, FIFTYONE AT ABOUT ONE THIRTY P.M. THE TARGET WAS PICKED UP ON AN SCR FIVE EIGHT FOUR RADAR SET THAT DISPLAYED UNUSUAL MANEUVERABILITY. TARGET WAS APPROXIMATELY OVER NAVESINK, NJe, AS IN- DICATED BY HIS TEN THOUSAND RANGE, SIX THOUSAND FEET ALTITUDE AND DUE NORTH AZIMUTH. SCHOPE AND APPEARED TO BE HOVERING. THE OPERATOR LOOKED OUT OF THE “VAN PAREND THE VEHICLE HOUSING THE RADAR SEPA PAREND IN AN ATTEMPT TO SEE THE TARGET, SINCE IT WAS AT SUCH A SHORT RANGE, HOWEVER, OVER- CAST CONDITIONS PREVENTED SUCH OBSERVATION. RETURNING TO THEIR OPER- ATING POSITION THE TARGET WAS OBSERVED TO BE CHANGING IN ELEVATION AT AN EXTREMELY RAPID RATE, BUT CHANGE IN RANGE WAS SO SLOW THE OPER- END OF PAGE TWO