Author Topic: Discovery STS 51-A / Two up, two down  (Read 43653 times)

Offline Ares67

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Re: Discovery STS 51-A / Two up, two down
« Reply #40 on: 01/07/2012 08:29 PM »

Offline Ares67

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Re: Discovery STS 51-A / Two up, two down
« Reply #41 on: 01/07/2012 08:30 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #42 on: 01/07/2012 08:38 PM »
PAO: Roll program initiated, Houston now controlling…. Roll program completed… beginning to throttle down in a two-step fashion to 89 percent and to 67 percent to pass through the area of maximum dynamic pressure…. Throttle down to 67 confirmed…

Offline Ares67

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Re: Discovery STS 51-A / Two up, two down
« Reply #43 on: 01/07/2012 08:45 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #44 on: 01/07/2012 08:48 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #45 on: 01/07/2012 08:50 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #46 on: 01/07/2012 08:53 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #47 on: 01/07/2012 08:57 PM »
PAO: 45 seconds, downrange distance two nautical miles, altitude 3.9 nautical miles, velocity 2,200 feet per second… three engines at 67 percent, passing through the area of maximum aerodynamic pressure… beginning throttle up back to 104 percent, the nominal throttle setting for this mission… throttle is coming up, engines at 104 percent…

CapCom: Discovery, Houston, you are go at throttle up.

Hauck: Roger, go.

PAO: Discovery’s crew given a go at throttle up, velocity 3,400 feet per second, altitude 12 nautical miles, downrange distance 8 nautical miles…
« Last Edit: 01/07/2012 08:58 PM by Ares67 »

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Re: Discovery STS 51-A / Two up, two down
« Reply #48 on: 01/07/2012 09:02 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #49 on: 01/07/2012 09:09 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #50 on: 01/07/2012 09:14 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #51 on: 01/07/2012 09:16 PM »
PAO: One minute 45 seconds, velocity 4,500 feet per second, altitude 18 nautical miles, downrange distance 16 nautical miles. Coming up on SRB separation in about 15 seconds.

Hauck: Pc less than 50.

PAO: Thrust tailing off on SRBs , standing by for separation…separation confirmed… nominal first stage performance.

CapCom: Discovery, Houston, first stage performance nominal.

Hauck: Okay, nominal.

PAO: Two minutes 30 seconds, velocity 5,600 feet per second, altitude 33 nautical miles, downrange distance 41 nautical miles.
« Last Edit: 01/07/2012 09:17 PM by Ares67 »

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Re: Discovery STS 51-A / Two up, two down
« Reply #52 on: 01/07/2012 09:19 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #53 on: 01/07/2012 09:27 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #54 on: 01/07/2012 09:28 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #55 on: 01/07/2012 09:31 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #56 on: 01/07/2012 09:38 PM »
Facing moderating high-level winds, the space shuttle Discovery lifted off at 7:15 a.m. EST, just 7/100ths of a second late. "We're looking good," mission commander Rick Hauck radioed to Mission Control in Houston, Texas, just after launching. Shuttle Management Director Tom Utsman termed the launch "very, very successful, spectacular."

The only significant problem cropped up during a hold in the countdown 20 minutes prior to liftoff. A key console that monitors total vehicle integrity went down unexpectedly in KSC's Launch Control Center, forcing teams to quickly switch to alternate systems. It was a problem similar to one that threatened to scrub Discovery's first launch on August 30, but which had not recurred during subsequent testing. "The team handled that very well with no impact," said Launch Director Bob Sieck, who described Discovery as an "absolutely, 100 percent perfect vehicle at liftoff."

Officials reported none of the troublesome private aircraft intrusions into the flight safety zone that have created problems for several earlier launches. An off-shore sailboat was encountered by a machine gun-toting patrol helicopter, but Utsman said the boat was outside the danger zone and was not bothered. (TODAY, Nov. 9, 1984)

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Re: Discovery STS 51-A / Two up, two down
« Reply #57 on: 01/07/2012 09:52 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #58 on: 01/07/2012 09:54 PM »

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Re: Discovery STS 51-A / Two up, two down
« Reply #59 on: 01/07/2012 09:58 PM »

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