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  • It's Sunday, 19th of January, and we are awaiting space.

  • Sexes launch escape test in just under 17 minutes and eight seconds.

  • The test today is to demonstrate the effectiveness of our launch escape system.

  • Now we're currently go for launch from Pad 39 A at Kennedy Space Center at 10:30 a.m. Eastern Standard time.

  • Thanks for joining us.

  • I'm John is Burger Falcon, principal integration engineer.

  • Here.

  • It's Basics headquarters in Hawthorne, California, and I'm Marie Louis with NASA Public Affairs.

  • The purpose of today's test is to demonstrate Crew Dragon's ability to safely fly astronauts away from danger and separate from the Falcon nine rocket during an in flight emergency space.

  • Axis Launch Escape System is a first of its kind with its eight super Draco thrusters built directly into Dragon to push the spacecraft away from Falcon nine.

  • In case of an emergency, you can think of it as a rocket on top of a rocket.

  • Now, in order to test our launch escape system, which is integral to the Dragon spacecraft, you see, in front of a year on the video, we will be simulating an emergency with Falcon nine at about 84 seconds into flight.

  • This could be a few seconds.

  • Early or late is Dragon waits for Falcon nine to reach a specific velocity before initiating the escape.

  • Now, before drawing and separates and fires, it's Super drink oh, engines.

  • It will command Falcon nine to shut down its engines is part of the escape sequence because Falcon nine is then unpowered.

  • We are expecting the launch vehicle a fully break up some point, which should create some particularly interesting views for sure.

  • Now it's not every day you get to see something like that.

  • So we're gonna do our best to bring it to you live as it happens.

  • But a reminder with the weather in the clouds were gonna try to find abuse that are best and to be very clear, this is all part of today's test.

  • Within the context of this test, the views that you will see will allow us to validate the effectiveness of our launch escape system, and we're hoping for some very exciting views.

  • But the whole point of the test today is the next step in our multi year efforts to fly astronauts again from U.

  • S soil.

  • It's part of NASA's commercial crew program, and it's a partnership we have with Space X and Boeing.

  • But this is not the first time we're putting dragons.

  • Launch escape system to the test.

  • If you remember back in 2015 Space X's pad abort test demonstrated Dragon's ability to escape from the Falcon nine in the event of a Nim Urgency on the pad before lift off and the super Draco's in the launch escape system on today's dragon capsule.

  • You see, there were successfully static fired this past November, and in addition of the test that you just mentioned, Space six also flew a full A NCruz demonstration mission to and from the International Space Station last year with its crew dragon vehicle.

  • Now this was a full and and test of the entire crew dragon system validating that are upgraded crew.

  • Dragon spacecraft gets safely docked with the space station.

  • In addition, our team has conducted over 700 tests on just the super Draco system alone, really looking forward to seeing knows perform in today's flight.

  • Absolutely.

  • And if all goes well today, the next big milestone will be to launch astronauts, as we mentioned to the international space station.

  • That's part of what we call Demo two or demonstration mission, too.

  • Now we're currently just inside of T minus 13 minutes and 45 seconds and counting down now, whether it's been a watch itin the last couple of days with rough sea, sustained winds in the recovery area we had described yesterday were also still listening.

  • They're evaluating constantly the weather in the splashdown area right now as we're doing the Webcast.

  • Now, we do have a six hour window today in case we need to wait for better weather or less cloud cover.

  • We've obviously used 2.5 hours of it already, but right now we think this is our best opportunity now.

  • If the weather does not cooperate today, we are preserving tomorrow as a potential backup.

  • Now, as a reminder again, this is not a typical watch were purposely testing dragons escape system under the most extreme conditions.

  • So while we want everything to go right today, we are prepared.

  • If everything goes wrong and if if that does happen, that's the whole point.

  • This is exactly why we test.

  • We want to see if there's any potential issues and we want them to happen now so we can address those before we put astronauts on board.

  • And speaking of astronauts, we have NASA's Darryl Nail at Kennedy Space Center in Florida.

  • That's where the test is taking place this morning.

  • And he has Maura about what those very first astronauts assigned to fly crew Dragon will be paying special attention to this.

  • Morning, Daryl.

  • Good morning, John Marie.

  • It's a pretty nice day here at the Kennedy Space Center in Florida.

  • You can see behind us here on the lawn.

  • Some of the media have gathered to shoot this launch.

  • And, of course, the countdown clock.

  • The iconic one.

  • They're counting 12 minutes until launch.

  • As you mentioned, the first crew members assigned to fly Crew Dragon, our NASA astronauts, Doug Hurley and Bob Franken.

  • And they have the most you could say invested in the outcome of this test flight.

  • Right now, they're just a few miles away from Launch Pad 39 a, which is just behind my left shoulder.

  • Here, they're in the space X firing room inside the launch control center, where they will closely monitor today's flight abort test.

  • Now, right now, they've been training up until this point, training hard with NASA and Space X so they can understand every aspect of dragon systems.

  • They're space suits and how to respond in a variety of potential emergency scenarios, including an escape from a Falcon nine rocket in the middle of flight.

  • The end result of that could be an early splash down in the Atlantic Ocean.

  • Now both astronauts told us what they will specifically be looking for during today's test flight.

  • I think both of us Air really excited that the in flight aboard test is about to happen.

  • You know, we kind of view that as the graduation exercise, like a lot of folks do on the NASA side toe, make sure that we're really confident that we've got a good plan and good procedures in place for pulling that mission off.

  • So I'm excited that we're this far, and I know once it's behind us, you know will be the prime, uh, Falcon nine crew, Dragon crew.

  • What we want to see from this test is just an end to end success.

  • So you know another successful launch of the Falcon nine and then to see the Super Draco's work.

  • I think that's a really good point.

  • I think getting the NASA team in the Space X team on the same page, kind of going forward and kind of walking through all the decisions that you have to make for getting ready for this flight, I think is a is a big milestone as well because it's the It's the last launch associate with us before we ride that rocket.

  • Yeah, that's very true.

  • It is.

  • It's kind of the final exam, so it's there's a lot riding on it, but also I think it's a culmination of a ton of work from everybody in NASA and Space six to get to this point.

  • I'm just really proud that the team is trying to pull off something so critical from a safety perspective.

  • You know, if we needed to escape off of the rocket toe, have that system demoed before we would actually use it is pretty cool that folks were making the investment to make that happen.

  • We feel really excited about kind of the progress that the basics and NASA have made to this point, and this China shows us that we're getting really close to our flight, so to see all these capabilities, all put together all the teams together and to be able to launch this vehicle.

  • It's just a huge boost of confidence.

  • Now there's an interesting human side to Doug and Bob story.

  • They're not just crew mates, but they're also friends who have spent a lot of time together over the years.

  • Both graduated from the same astronaut training class in 2000.

  • Both flew on the space shuttle.

  • Both are married to astronauts, and they were in each other's wedding.

  • Gianna, Marie!

  • Back to you.

  • All right, Thanks, Darryl.

  • You're taking a live look.

  • Now this is inside Space X is firing room for That's where Bob and Doug are sitting today, along with the NASA and Space X teams watching following along today's test, and this past Friday, they completed what we refer to internally as a dry dress rehearsal.

  • We saw some video of that during Darryl segment.

  • This is where the astronauts, along with the Space X and NASA teams, walk through those steps that they'll take before they get on board for Demo two.

  • We saw them suit up on, and that is really exciting stuff, especially that was the first time we saw them suited up walking out of the the astronaut suit up room and so really looking forward to doing that for demo to Let's take a quick look.

  • Now at Cru Dragon, it stands almost 27 feet tall from the bottom of the trunk to the top of the nose cone and crew.

  • Dragon is composed of two main elements.

  • The capsule.

  • That top portion is designed to hold crew and pressurized cargo, and it has an unpressurized section known as the trunk that's down below for today's test.

  • Much of the exciting work is gonna be done by the Dragons.

  • Eight Super Draco engines we talked about built directly into the capsule.

  • Now, to give you a sense of power, went fired Together.

  • The eight super drinkers can move the spacecraft 1/2 a mile in 7.5 seconds.

  • So from a standing start, Super Draco's accelerate the spacecraft to a speed of 436 miles per hour.

  • That's a lot faster than catapult launched from an aircraft carrier.

  • I know it's it's hard to imagine just moving that fast.

  • I was trying to get a feel for it so I did a little math, and it's about three times faster than take off on a commercial plane, if you can imagine that.

  • In fact, one jetpack assembly, which consists of two super Draco's, produces more thrust than an F 16 fighter jet at full afterburn.

  • So, John, if you were to put that strap that to your back, you would break the sound barrier and under half a second.

  • Not sure you want a volunteer for that.

  • Probably break something else, too.

  • So that gets us through the major test objective today.

  • Dragon separating from the Falcon.

  • Several minutes later, we will deploy drogue parachutes, followed by the four large main parachutes.

  • You'll see the main parachutes partially open it first.

  • If we've got video, then fully open, these will then control the descent of the dragon capsule softly into the Atlantic Ocean.

  • And while that vehicle that you see on the pad looks like a typical crew dragon spacecraft from outside.

  • If you had a look inside, you'll see that the interiors have been stripped down and there it is.

  • We do have a look inside for you.

  • Three.

  • Cabin has no interior panels except for one on the ceiling, and there's no control panel in there for this test.

  • Dragons, also outfitted with two seats that you see there and sitting inside those seats.

  • We have two anthropomorphic test devices, no cool acronym.

  • I'll just call them test device.

  • We have enough acronym.

  • While the tough devices do not have any sensors on them today, the seats they're sitting on our instrumented we'll be able to measure the loads on the seat to ensure that there are no unexpected issues in this dressing test case, We've also made some other modifications to the Dragon interior for today's test.

  • That's right.

  • There will be three cargo racks with some assortment of ballast or cargo bags and no floor now below where the floor would be.

  • There will be an assortment of mass simulators in place of the life support components and some other equipment that's down there when we have crew aboard.

  • Now the test today will look a lot like a normal falcon launch for the first minute, and 1/2 will fly until Falcon nine reaches a predetermined velocity.

  • This will occur about 84 seconds into flight, and that happens at approximately 20 kilometers up once we reach the required velocity, Dragon will then trigger and escape.

  • Now, as a reminder, the ground is not commanding this support.

  • It's up to the onboard computers to determine when to trigger the launch escape and do all the functions afterward.

  • Once drinking does trigger the launch escape, the first event will be commanding Falcon nine to shut down its nine Merlin engines.

  • Now is Marie and I mentioned earlier.

  • Dragon will then separate from the Falcon, using its eight super Driscoll engines, firing for about eight seconds that carries dragon capsule with the trunk up in, away from Falcon.

  • Now, once they've finished firing the Super Drinkers we coast, we jettison the truck.

  • At Apogee, we reorient the capsule to come back for entry into the earth's atmosphere.

  • We deploy about two minutes after after JI that drogue chutes, and about a minute after that, the four main parachutes will be released.

  • Dragon will then splash down softly in the Atlantic Ocean about 35 kilometers offshore.

  • Now, one dragon separates.

  • We no longer have that smooth aerodynamic shape on top of the rocket, so the supersonic falcon is going to be exposed to strong aerodynamic forces in the upper atmosphere.

  • So we expect those aerodynamic forces will cause Falcon to start to tumble.

  • Our simulations show that the Falcon will likely break apart due to the tumbling instead of having the district system triggered and destroying the rocket.

  • So now again, this entire test will take less than 10 minutes from the time Falcon eye lifts off until Dragon splashes down.

  • But Marie, once we splashed down, the work's not over yet, right?

  • It's just beginning for the recovery team.

  • We have a lot of things happening very rapidly in that 1st 10 minutes, and the recovery operation takes quite a bit longer.

  • It'll be similar to the pad abort test, but it will happen slightly farther down range in the Atlantic Ocean.

  • So after splashdown, recovery teams will already be standing by for range approval toe enter and clear that hazardous area.

  • And if all goes nominally, Space X could have fully recovered Dragon back onto its recovery ship approximately two hours after splashdown.

  • Keep in mind, though, if this were to happen during an actual flight with crew on board, rescuing them would be the number one objective, of course, and recovering Dragon would be a secondary operation.

  • So if that were to happen, an elite military rescue team would deploy at a moments notice.

  • They're part of the US Air Forces Detachment three.

  • Or they have this really great nickname, the Guardian Angels, which is very appropriate.

  • They would jump from military aircraft.

  • There's a photo of that happening there where they would deploy their own parachutes to gently reach the water.

  • And from there they would help the crew out of the capsule and then onto a life raft toe wait for a larger ship.

  • Now, this is not just any life raft there.

  • It has a cover that they can put over the top to protect them from the elements.

  • And it's also equipped with food, water and medical supplies enough to last for days if needed.

  • This would be, of course, a worst case scenario.

  • It's one that we don't expect to happen.

  • But of course, what do we do when we're preparing to flight crew?

  • We always plan for the worst.

  • So this is something that NASA, Space X and the Department of Defense have rehearsed together over and over so that we're ready for anything, and the space X recovery team is also keeping an eye out for Falcon nine.

  • As we mentioned earlier, Falcon nine is expected to break up over the water.

  • We've got a dedicated team of space.

  • X recovery personnel will be staged and ready to begin recovering debris shortly after break up.

  • Well, the clock's ticking down rapidly.

  • We're just over T minus two minutes and 14 seconds from lift off.

  • You've seen the crew access arm?

  • It's back that was retracted away from Dragon at T minus 42 minutes.

  • A few minutes after that Dragon launch Escape system was armed just before we began loading propellant under the Falcon nine.

  • It's often unplanned.

  • Situation arose right now.

  • Dragon with performing escape.

  • Now currently, the engines air chilled in for launch on the Falcon.

  • The Dragon Spacecraft is waiting for Lift off.

  • We have retracted and you can see in the video the strong back is moved away.

  • Just about two degrees in reference.

  • Readiness for lift off.

  • We have also finished loading liquid oxygen onto both stages.

  • So the Falcon nine just about ready the large white cloud you see coming off of the side.

  • We're venting down the pressure from the liquid oxygen supply lines in the strong back in preparation for launch.

  • Last event you're going to hear.

  • Start up a one minute when the computers take over and the launch director go at 30 seconds and we're coming right up on that in about 15 seconds.

  • Now will be just a minute from lift off.

  • And Falcon nine is, as you just heard, is moving into those final stages of the final countdown for the in flight aboard test today.

  • So far, weather's looking okay.

  • We're hoping it's gonna continue to cooperate and the range is green for launch.

  • Now, if for some reason we scrubbed today, we will shift to our backup launch window, which is tomorrow at the same time.

  • Again, this is just a test.

  • Were fully expecting Falcon nine to break up.

  • So don't be alarmed if you see that happening live.

  • And with that, let's listen in now.

  • We're just 45 seconds from the final countdown after it was learned.

  • Go for lunch.

  • 15 seconds.

  • Nine, eight, seven, six, five four, three You 10 ignition T plus 30 seconds.

  • Falcon nine with the crew Dragon capsule is heading east from pad 39.

  • A everything looking good right now.

  • As we get ready for Max, dynamic pressure were rattling down the first stage engines.

  • Our telemetry nominal.

  • Everything continues to look good.

  • Were perching the period of maximum dynamic pressure vehicles supersonic and passing through maximum dynamic pressure.

  • You've heard we're supersonic.

  • We're through.

  • Max Q.

  • We're getting ready now to throw the engines back up on the first stage Stage on throttle up.

  • There's the CO out.

  • Okay, The major activity coming up in just over 10 seconds.

  • Shut down and Dragon escaped from the Falcon nine Mikel trading Launch escape initiated, dragged away.

  • And you can hear some really loud cheering in the room.

  • Okay?

  • You just saw a bright flash there.

  • It looks like maybe Falcon nine breaking up.

  • We got some allowed cheers here in Hawthorne that folks that just watched live the dragon separate.

  • Next milestone.

  • We have coming up at two minutes 25 seconds.

  • We're expecting to see the trunk jettison.

  • So that claw that connects the trunk to the capsule is going to separate, allowing dragon to separate from the trunk.

  • That's coming up in 15 seconds.

  • And we do have the report loss of telemetry from Falcon nine.

  • First stage on there.

  • You just saw the trunk jettison again.

  • Some really loud cheers.

  • Here in Hawthorne, California.

  • This test is looking great.

  • So far, nice view from the back of the dragon capsule.

  • We're also trying to see if we get the view there on the right hand side from the aircraft.

  • It's orbiting the area.

  • Now the dragon control system is now going to be relying on the capsule.

  • We're at a high altitude where the air dynamics are negligible.

  • So we're going to use the small Draco thrusters on the dragon capsule to reorient it.

  • That gets it in a position with the heat shield down to re enter the Earth's atmosphere and then later to deploy the drogue parachutes.

  • Now those drugs shoots, we expect Thio get confirmation that those have deployed at T plus four minutes and 48 seconds.

  • So we've got just a little bit of breathing room before we hear that happen.

  • Those parachutes are protected during accent on orbit and re entry by a panel that's up near the nose cone of the capsule.

  • So we're gonna jettison the panel, then the mortars will fire to deploy those two drogue chutes again.

  • That's coming up in just over a minute AT T plus four minutes and 48 seconds.

  • Now those drogue chutes, when we see those come out, those will open.

  • Those will come out before the main parachutes that those drogue parachutes are what we used to begin to decelerate the dragon capsule in preparation for splash down.

  • We understand we're getting into the drogue deploy envelope on the dragon capsule.

  • We expect that will happen when dragon is at about 20,000 feet, about 15 seconds to drug drogue chute deploy.

  • And there they are.

  • Drogue chutes are out again.

  • Some major cheering going on here is every stage of this test unfolds.

  • Now we're gonna be getting ready for the main chutes to deploy.

  • Now, main chutes will be coming up fairly quickly.

  • There are four main parachutes these air the newest mark.

  • Three parachutes there, each 116 feet in diameter.

  • We deploy them about two kilometres above sea level 6500 feet above the Atlantic Ocean.

  • We're getting good views from the dragon and the airplane showing the two drogue chutes.

  • Now we're just waiting for the main parachutes to be deployed very shortly, and we have the view from a different camera on Dragon showing the four main pursuits.

  • Now they are deployed in a reef condition.

  • That means we're keeping unfairly shut to avoid shocks.

  • And now we're slowly opening up the four parachutes, great views coming off of the dragon camera on the left, and we can also see the four pair shit that is a really cool of you.

  • Nice view of the orange and white parachutes is they're opening up into second position, and they're going to fully open from fully open will be descending about 2025 feet per second down to the Atlantic.

  • So from that 6500 foot altitude, it's going to take us a few minutes to splash down.

  • Also right now, now that the mains are out, a sequence is performed on the dragon, which will reorient the cruise seats into a splashdown position.

  • Given a little better angle to take.

  • The slow bounce is we hit the ocean.

  • No, Maria.

  • I talked about the parachutes, came out initially a reef condition that's fairly standard.

  • They come out not fully open that way.

  • They're minimizing the shock on the parachutes were also minimizing the shock on the capsule.

  • Again.

  • We want to give a smooth ride to the crew is they're coming back through the earth's atmosphere right now.

  • The parachutes are located behind a door that's at the bottom of the capsule.

  • It's below the crew hatch, so Dragon commands the door to release.

  • And as you saw in the video, the dread parachutes pull the doorway and that pulls the four main parachutes out.

  • Now these are the new Mark three player shoots we've completed Here it Space X over 80 Tufts of that parachute system, including 10 multi parachute tests of this particular upgraded parachute designed over the last few months to demonstrate that the design is ready for flight and we are about were just inside two minutes of when we expect to see splash down.

  • The recovery teams are already out there in the Atlantic Ocean, standing by ready with fast boast boats to begin their initial approach to Dragon again.

  • We mentioned this before, but the recovery operation we expect to take a couple of hours.

  • I've heard a call out.

  • We're below 500 meters and we expect When dragon splashes down, it's going to be roughly 32 kilometers offshore.

  • Again, we're looking at a live view.

  • So far, all things have appeared to go nominal for this test.

  • All things looking great so far we saw the four main parachutes deploy.

  • You're looking at them now fully open.

  • And we are coming up on about a minute until splashdown.

  • I think we may have heard a call out of 100 meters to go.

  • Yeah, I just heard that, too.

  • Now, those four parachutes are actually going to be released from the capsule after splashdown and they'll be recovered.

  • Two.

  • And we're down down a little bit early, in fact.

  • And there you can see the recovery boat beginning to approach instantly.

  • Try to talk a little bit louder so you can hear me over the folks here.

  • This has been really exciting thing to see, because way had the weather.

  • We're really sure if the weather was gonna cooperate.

  • We're trying away, you know, is a favorable for launch, but also is it favorable for recovery because they really have to watch the height of those waves in order to do this operation that that fast boat is just off screen now, but there's four fast boats out there in the area to begin again.

  • That initial approach to Dragon, the recovery operation from here takes about two hours.

  • But all in all, this looks like a really great test.

  • A lot of fun watching the dragon come down.

  • We have great views from the onboard camera in particular.

  • Now, I think this camera is from Argos Searcher Recovery ship, which is also the tender for the fast boat.

  • You saw one of them headed out there and you can also see it looks still little choppy.

  • So you understand We were kind of on the edge of the weather conditions out in the splashdown area.

  • But they assess the boat data, the buoy data looked at the forecast and said we were go.

  • And while we took 2.5 hours to get here, we finally got here and it was great.

  • And that's the summary for today.

  • It looks like right now a great test.

  • Visually, everything happened.

  • Falcon nine.

  • You saw the lift off.

  • That kind of a long view from the camera dragon did shut down the nine Merlin Wendy engines and separate.

  • We did see the flash as the Falcon nine came apart as predicted No surprise there drug.

  • And we saw a great view as it got the apogee.

  • It deployed the trunk separating it reoriented.

  • Then the drogue chutes came out.

  • The main chutes came out and then we just waited for that nice sauce splash down in the Atlantic Ocean and we saw it.

  • Looks like we just lost the view from out there on the ship.

  • You couldn't really see much from that particular angle again.

  • That recovery operation is going to take a couple of hours, so we're not going to stay on the air for the duration of that.

  • But we are going to be back for a news conference coming up at 11.

  • 30 Eastern time this morning.

  • That would be only do the math real quick.

  • 8 30 Pacific time.

  • We're going to hear from NASA and Space X leaders about their initial thoughts on this test that you just saw.

  • Of course, everything looked fantastic, but there's gonna be a lot of data to dig into their gonna also collect those parachutes.

  • Get a lot of data from that and then see what the next steps are on the path to demo to when, of course, we're going to be launching NASA astronauts Bob Rankin and Doug Hurley.

  • So stay tuned for that news conference.

  • It will be carried live on NASA TV.

  • If you're watching on the Web, just tuned to on nasa dot gov forward slash lives, you can see that coverage again.

  • That's 8 30 Pacific time, 11 30 Eastern Thanks so much for joining us for this morning's test.

It's Sunday, 19th of January, and we are awaiting space.

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乘龍號發射逃學生演示 (Crew Dragon Launch Escape Demonstration)

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    林宜悉 發佈於 2021 年 01 月 14 日
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