1 00:00:04,470 --> 00:00:02,149 my name is tom williams i'm a systems 2 00:00:07,670 --> 00:00:04,480 engineer working on the tdrs program 3 00:00:08,870 --> 00:00:07,680 since 1975. i was working at goddard 4 00:00:11,669 --> 00:00:08,880 here doing 5 00:00:14,629 --> 00:00:11,679 research in electric propulsion back in 6 00:00:17,189 --> 00:00:14,639 in the late 60s and in 7 00:00:19,189 --> 00:00:17,199 1975 they called me the teachers 8 00:00:19,910 --> 00:00:19,199 projected and asked if i would take on 9 00:00:22,150 --> 00:00:19,920 the 10 00:00:24,070 --> 00:00:22,160 engineering job as a propulsion engineer 11 00:00:26,070 --> 00:00:24,080 for that program that was just getting 12 00:00:28,550 --> 00:00:26,080 started well the launch of the first 13 00:00:30,790 --> 00:00:28,560 tdrs we had an anomaly with the launch 14 00:00:34,310 --> 00:00:30,800 vehicle and normally they're supposed to 15 00:00:36,950 --> 00:00:34,320 drop us off and we immediately go into 16 00:00:38,950 --> 00:00:36,960 configuring the spacecraft and deploying 17 00:00:42,150 --> 00:00:38,960 all the appendages and instead we were 18 00:00:43,990 --> 00:00:42,160 spinning end over end at 30 rpm and we 19 00:00:45,830 --> 00:00:44,000 weren't in the right orbit so what 20 00:00:48,150 --> 00:00:45,840 happened then we tried to figure out 21 00:00:50,150 --> 00:00:48,160 what we could do about it and eventually 22 00:00:52,549 --> 00:00:50,160 figured out a way we could actually get 23 00:00:54,389 --> 00:00:52,559 in the correct orbit with the small 24 00:00:56,630 --> 00:00:54,399 thrusters that we had on board we did a 25 00:00:58,150 --> 00:00:56,640 burn every every day and it took us 30 26 00:01:00,790 --> 00:00:58,160 days and we eventually got there and 27 00:01:02,950 --> 00:01:00,800 that spacecraft lasted 27 years i think 28 00:01:04,469 --> 00:01:02,960 the biggest thing about tdrs and i don't 29 00:01:06,630 --> 00:01:04,479 know why this is true and it's it's 30 00:01:09,270 --> 00:01:06,640 probably true to other programs too but 31 00:01:11,510 --> 00:01:09,280 it really did turn into like a family we 32 00:01:14,310 --> 00:01:11,520 had a lot of picnics for the families 33 00:01:16,230 --> 00:01:14,320 parties or working relationship in those 34 00:01:18,789 --> 00:01:16,240 days you could argue face to face with 35 00:01:20,469 --> 00:01:18,799 people and then go have lunch it was uh 36 00:01:22,310 --> 00:01:20,479 i think kind of unique for a big program 37 00:01:25,220 --> 00:01:22,320 like that it was a very close