1 00:00:41,680 --> 00:00:43,750 how many missions can an orbiter window 2 00:00:43,750 --> 00:00:43,760 how many missions can an orbiter window 3 00:00:43,760 --> 00:00:45,110 how many missions can an orbiter window withstand 4 00:00:45,110 --> 00:00:45,120 withstand 5 00:00:45,120 --> 00:00:47,190 withstand that's a determination that must be made 6 00:00:47,190 --> 00:00:47,200 that's a determination that must be made 7 00:00:47,200 --> 00:00:49,510 that's a determination that must be made at the end of each flight 8 00:00:49,510 --> 00:00:49,520 at the end of each flight 9 00:00:49,520 --> 00:00:51,110 at the end of each flight in order to determine the flight 10 00:00:51,110 --> 00:00:51,120 in order to determine the flight 11 00:00:51,120 --> 00:00:53,270 in order to determine the flight worthiness of the six thermal orbiter 12 00:00:53,270 --> 00:00:53,280 worthiness of the six thermal orbiter 13 00:00:53,280 --> 00:00:55,430 worthiness of the six thermal orbiter windows each one must first be 14 00:00:55,430 --> 00:00:55,440 windows each one must first be 15 00:00:55,440 --> 00:00:58,069 windows each one must first be laboriously hand cleaned 16 00:00:58,069 --> 00:00:58,079 laboriously hand cleaned 17 00:00:58,079 --> 00:01:00,229 laboriously hand cleaned a haze makes on to the surfaces in the 18 00:01:00,229 --> 00:01:00,239 a haze makes on to the surfaces in the 19 00:01:00,239 --> 00:01:04,630 a haze makes on to the surfaces in the four thousand degree heat of reentry 20 00:01:04,630 --> 00:01:04,640 21 00:01:04,640 --> 00:01:06,950 the cleaning process takes approximately 22 00:01:06,950 --> 00:01:06,960 the cleaning process takes approximately 23 00:01:06,960 --> 00:01:08,630 the cleaning process takes approximately a week of labor 24 00:01:08,630 --> 00:01:08,640 a week of labor 25 00:01:08,640 --> 00:01:11,030 a week of labor and only after the haze is removed can 26 00:01:11,030 --> 00:01:11,040 and only after the haze is removed can 27 00:01:11,040 --> 00:01:15,990 and only after the haze is removed can visual inspection begin 28 00:01:15,990 --> 00:01:16,000 29 00:01:16,000 --> 00:01:18,789 small scale debris impacts on orbit and 30 00:01:18,789 --> 00:01:18,799 small scale debris impacts on orbit and 31 00:01:18,799 --> 00:01:21,109 small scale debris impacts on orbit and booster separation exhaust result in 32 00:01:21,109 --> 00:01:21,119 booster separation exhaust result in 33 00:01:21,119 --> 00:01:24,310 booster separation exhaust result in damage to the windows 34 00:01:24,310 --> 00:01:24,320 damage to the windows 35 00:01:24,320 --> 00:01:26,390 damage to the windows a mylar is made for flight to flight 36 00:01:26,390 --> 00:01:26,400 a mylar is made for flight to flight 37 00:01:26,400 --> 00:01:28,310 a mylar is made for flight to flight comparisons 38 00:01:28,310 --> 00:01:28,320 comparisons 39 00:01:28,320 --> 00:01:30,789 comparisons the new defects are evaluated using an 40 00:01:30,789 --> 00:01:30,799 the new defects are evaluated using an 41 00:01:30,799 --> 00:01:33,190 the new defects are evaluated using an epoxy mold impression 42 00:01:33,190 --> 00:01:33,200 epoxy mold impression 43 00:01:33,200 --> 00:01:35,270 epoxy mold impression any crater depth exceeding six ten 44 00:01:35,270 --> 00:01:35,280 any crater depth exceeding six ten 45 00:01:35,280 --> 00:01:37,510 any crater depth exceeding six ten thousandths of an inch results in a 46 00:01:37,510 --> 00:01:37,520 thousandths of an inch results in a 47 00:01:37,520 --> 00:01:38,830 thousandths of an inch results in a window 48 00:01:38,830 --> 00:01:38,840 window 49 00:01:38,840 --> 00:01:41,510 window replacement a new inspection system has 50 00:01:41,510 --> 00:01:41,520 replacement a new inspection system has 51 00:01:41,520 --> 00:01:43,590 replacement a new inspection system has been developed by the inet special 52 00:01:43,590 --> 00:01:43,600 been developed by the inet special 53 00:01:43,600 --> 00:01:46,870 been developed by the inet special instrumentation laboratory at ksc 54 00:01:46,870 --> 00:01:46,880 instrumentation laboratory at ksc 55 00:01:46,880 --> 00:01:49,270 instrumentation laboratory at ksc a lightweight scanning frame automates 56 00:01:49,270 --> 00:01:49,280 a lightweight scanning frame automates 57 00:01:49,280 --> 00:01:51,830 a lightweight scanning frame automates the side light optical scattering method 58 00:01:51,830 --> 00:01:51,840 the side light optical scattering method 59 00:01:51,840 --> 00:01:53,830 the side light optical scattering method and shows defects in the presence of 60 00:01:53,830 --> 00:01:53,840 and shows defects in the presence of 61 00:01:53,840 --> 00:01:56,310 and shows defects in the presence of haze 62 00:01:56,310 --> 00:01:56,320 63 00:01:56,320 --> 00:01:58,709 this automated optical technique can be 64 00:01:58,709 --> 00:01:58,719 this automated optical technique can be 65 00:01:58,719 --> 00:02:01,429 this automated optical technique can be performed prior to polishing the windows 66 00:02:01,429 --> 00:02:01,439 performed prior to polishing the windows 67 00:02:01,439 --> 00:02:03,350 performed prior to polishing the windows and it provides a permanent and accurate 68 00:02:03,350 --> 00:02:03,360 and it provides a permanent and accurate 69 00:02:03,360 --> 00:02:07,109 and it provides a permanent and accurate recording of the results 70 00:02:07,109 --> 00:02:07,119 71 00:02:07,119 --> 00:02:09,350 a computer image can be printed onto a 72 00:02:09,350 --> 00:02:09,360 a computer image can be printed onto a 73 00:02:09,360 --> 00:02:12,309 a computer image can be printed onto a mylar and archived in a database for 74 00:02:12,309 --> 00:02:12,319 mylar and archived in a database for 75 00:02:12,319 --> 00:02:16,630 mylar and archived in a database for detailed flight to flight analysis 76 00:02:16,630 --> 00:02:16,640 77 00:02:16,640 --> 00:02:18,470 the second phase of the automated 78 00:02:18,470 --> 00:02:18,480 the second phase of the automated 79 00:02:18,480 --> 00:02:20,949 the second phase of the automated inspection employs a high resolution 80 00:02:20,949 --> 00:02:20,959 inspection employs a high resolution 81 00:02:20,959 --> 00:02:23,430 inspection employs a high resolution camera system to determine a maximum 82 00:02:23,430 --> 00:02:23,440 camera system to determine a maximum 83 00:02:23,440 --> 00:02:28,550 camera system to determine a maximum depth extent of the damage features 84 00:02:28,550 --> 00:02:28,560 85 00:02:28,560 --> 00:02:31,190 by adapting technologies already in use 86 00:02:31,190 --> 00:02:31,200 by adapting technologies already in use 87 00:02:31,200 --> 00:02:33,670 by adapting technologies already in use in shuttle and payloads defect analysis 88 00:02:33,670 --> 00:02:33,680 in shuttle and payloads defect analysis 89 00:02:33,680 --> 00:02:34,869 in shuttle and payloads defect analysis at ksc 90 00:02:34,869 --> 00:02:34,879 at ksc 91 00:02:34,879 --> 00:02:36,949 at ksc this automated inspection technique 92 00:02:36,949 --> 00:02:36,959 this automated inspection technique 93 00:02:36,959 --> 00:02:54,790 this automated inspection technique provides more accurate data sooner 94 00:02:54,790 --> 00:02:54,800 95 00:02:54,800 --> 00:02:56,879 you