DATE DURATION ALTITUDE AUGUST 18, 1993 60 SEC 150 FEET SEPTEMBER 11, 1993 (?) 300 FEET SEPTEMBER 30, 1993 72.2 SEC 1200 FEET JUNE 20, 1994 136 SEC 2850 FEET JUNE 27, 1994 78 SEC (EXPLOSION DURING START EMERGENCY LANDING) MAY , 1995 135 SEC(?) 4350 FEET(?) JUNE , 1995 132 SEC 5700 FEET JULY 7, 1995 124 SEC 8200 FEET DC-XA MAY 18, 1996 60 SEC 800 FEET JUNE 7, 1996 64 SEC 2500 FEET JUNE 8, 1996 142 SEC 10300 FEET JULY 31, 1996 140 SEC 1230 METERS (LANDING FAILURE)