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three-two-one t-minus five minutes and

2
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Counting we have a go for the orbiter

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APU start pilot llaha is now flipping

4
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the three switches in the cockpit to

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start each of the three ap use APU

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activation is complete

7
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Mandor Fred Gregory has been asked to

8
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reconfigure the orbiter heaters for

9
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launch he reports that those heaters are

10
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t-minus four minutes 27 seconds and

11
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counting

12
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the solid rocket booster and external

13
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tanks safe and armed devices had been

14
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armed with one oxygen replenishing of

15
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the external tank now has been

16
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terminated report now that the APU start

17
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is complete coming up now on t-minus

18
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four minutes main engine final purge

19
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sequence is underway the main engine

20
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valves are being checked the orbiter

21
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flight control surfaces such as the

22
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elevon speed brakes and rudder are now

23
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being moved through a pre-programmed

24
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pattern to verify that they are ready

25
00:01:42,660 --> 00:01:41,869
for launch t-minus 3 minutes 45 seconds

26
00:01:46,210 --> 00:01:42,670
and counting

27
00:01:51,179 --> 00:01:46,220
all systems on board the space shuttle

28
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coming up now on t-minus three minutes

29
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30 seconds and counting

30
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all three of Discovery's main engines

31
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are now being gimballed which is a

32
00:02:03,389 --> 00:02:01,090
steering check to verify the readiness

33
00:02:04,980 --> 00:02:03,399
for flight control when this check is

34
00:02:11,130 --> 00:02:04,990
complete they'll be aligned to their

35
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main engine start positions coming up

36
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now on the 3-minute mark in the count t

37
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t-minus three minutes t-minus 255 the

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pressurization of the liquid oxygen tank

39
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will begin and the gaseous nitrogen of

40
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the main engines will be terminated

41
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ground launch sequencer has started a

42
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retract of the gaseous oxygen pit hood

43
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which is the beanie cap on the external

44
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tank the computers will make a final

45
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check to ensure that the vent arm is

46
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fully retracted at the t-minus 37 second

47
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ground supply of hydrogen and oxygen for

48
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the orbiter fuel cells has now been

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turned off discovery is running on its

50
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onboard reactants the orbiter test

51
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conductor will shortly be asking John

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Blaha

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the crew has been told to close their

54
00:03:26,839 --> 00:03:24,840
visors on their launch and reentry

55
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helmets and to start the oxygen supply

56
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to their pressure suits we are go now

57
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for liquid hydrogen pressurization

58
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replenishing of the external tank is

59
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stopped tank being pressurized to flight

60
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level the space shuttle is now isolated

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from all ground propellant and fluid

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t-minus 90 seconds were less than a

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minute and a half away from the launch

64
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of STS 33 and the space shuttle

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Discovery

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with its five astronaut crew at t-minus

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one minute the ground law sequencer will

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verify that the shuttle main engines are

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ready to start

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like what hydrogen tank is now at flight

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t-minus one minute the sound suppression

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water system is now armed the water will

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be released at t minus 16 seconds at a

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flow rate of nine hundred thousand

75
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gallons per minute the heaters around

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the solid rocket booster joints have now

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been turned off hydrogen burning

78
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nighters have now been armed the

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igniters will be fired at t minus ten

80
00:04:47,960 --> 00:04:44,669
seconds to burn off any ambient hydrogen

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under the main engine nozzles solid

82
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rocket booster flight instrumentation

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recorders have now gone into the record

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mode the main propulsion system oxygen

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and hydrogen fill valves have now been

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closed t-minus 27 seconds we have a go

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for autosequence start

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t-minus 23 seconds and counting the

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00:05:08,930 --> 00:05:06,270
orbiters body flap and speed break have

90
00:05:11,120 --> 00:05:08,940
been positioned for the launch t-minus

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15 seconds and counting

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sound suppression water system has

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started the launch igniters and

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pyrotechnics are armed 9 8 7 6 5 4 3 2 1

95
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liftoff

96
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roll program initiated three engines

97
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throttling back now to 65% as Discovery

98
00:06:07,360 --> 00:06:01,670
passes through the area of maximum

99
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dynamic pressure velocity now 2,000 feet

100
00:06:32,670 --> 00:06:21,100
per second if you use all looking good

101
00:06:37,089 --> 00:06:35,170
all three engines have now throttled

102
00:06:39,040 --> 00:06:37,099
back up to 104 percent the crews

103
00:06:58,900 --> 00:06:39,050
received a go at throttle a call meaning

104
00:07:04,790 --> 00:07:02,180
discovery now at velocity of 4000 feet

105
00:07:06,910 --> 00:07:04,800
per second three engines running at 104

106
00:07:43,030 --> 00:07:06,920
percent all three apu looking good

107
00:07:46,970 --> 00:07:45,320
separation of the solid rocket boosters

108
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has been been confirmed by the booster

109
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officer velocity now 5000 feet per

110
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second discovery 40 nautical miles

111
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flight dynamics officer has confirmed

112
00:08:15,210 --> 00:08:13,840
nominal performance from the combination

113
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of the engines and the solid rocket

114
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boosters this call means that we have

115
00:08:22,040 --> 00:08:19,060
gotten the expected thrust for the

116
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vehicle out of the booster system

117
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discovery now at 5,200 feet per second

118
00:08:40,320 --> 00:08:28,420
velocity altitude of 45 nautical miles

119
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discovery now has the capability to

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reach the transatlantic abort site

121
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should one engine fail three engines

122
00:08:52,570 --> 00:08:49,370
still looking good if you use all

123
00:09:38,310 --> 00:08:52,580
performing well velocity now 6000 feet

124
00:09:43,900 --> 00:09:40,540
discovery now moving at a velocity of

125
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7500 feet per second downrange 145

126
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nautical miles at an altitude of 54

127
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nautical miles all engines looking good

128
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and discovery has received the negative

129
00:09:56,290 --> 00:09:54,320
return call meaning that it is no longer

130
00:10:58,279 --> 00:09:56,300
no longer possible for discovery to

131
00:11:03,389 --> 00:11:00,569
discovery now visible through the

132
00:11:06,389 --> 00:11:03,399
television cameras on location at Dryden

133
00:11:09,269 --> 00:11:06,399
Flight Research Facility at Edwards Air

134
00:11:12,599 --> 00:11:09,279
Force Base in California Discovery's

135
00:12:17,139 --> 00:11:12,609
velocity now Mach 1.7 at 72 thousand

136
00:12:21,110 --> 00:12:19,519
flight dynamics officer reports

137
00:12:22,400 --> 00:12:21,120
discovery is looking good

138
00:12:35,740 --> 00:12:22,410
coming up on the heading alignment

139
00:12:39,830 --> 00:12:37,850
discovery will make a right overhead

140
00:13:03,310 --> 00:12:39,840
turn on the heading alignment circle of

141
00:13:07,879 --> 00:13:06,319
why dynamics officer reports discovery

142
00:13:13,730 --> 00:13:07,889
looking good rolling onto the heading

143
00:13:53,800 --> 00:13:13,740
alignment circle velocity 800 feet per

144
00:13:59,630 --> 00:13:56,329
guidance navigation and control officer

145
00:14:01,340 --> 00:13:59,640
reports nav is good discovery coming

146
00:14:05,210 --> 00:14:01,350
around the hitting alignment circle now

147
00:14:05,900 --> 00:14:05,220
about halfway around velocity 600 feet

148
00:14:51,190 --> 00:14:05,910
per second

149
00:14:55,340 --> 00:14:53,690
discovery looks good rolling onto final

150
00:15:01,730 --> 00:14:55,350
as reported by the flight dynamics

151
00:15:05,330 --> 00:15:01,740
officer surface winds are reported to be

152
00:15:07,400 --> 00:15:05,340
19 not head win and a four not right

153
00:15:18,550 --> 00:15:07,410
crosswind well within the limits for

154
00:15:57,699 --> 00:15:23,870
altitude is now 13,000 feet about one

155
00:16:02,300 --> 00:16:00,590
altitude now 6000 feet fly dynamics

156
00:16:04,429 --> 00:16:02,310
officer reports that discovery is

157
00:16:44,060 --> 00:16:04,439
converging on the center line above

158
00:16:44,070 --> 00:16:52,950
gear down and locked

159
00:16:52,960 --> 00:17:00,880
main gear touchdown

160
00:17:07,150 --> 00:17:04,329
nose gear touchdown discovery rolling