Author Topic: SpaceX FH : Falcon Heavy Demo : Feb 6, 2018 : Discussion Thread 2  (Read 598014 times)

So tesla is very lightwieght no front brakes fitted sugests they have the bare min to keep it looking like a car
Electric cars brake through the motor..Called regenerative braking. ;)

Still have disk brakes  the regenerative braking cant stop a car on its own! btw 20 years in hybrid/electric cars  :)

Offline LongTimeFan

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Just FYI: The Blue Danube Waltz is a great song to play while watching the live Starman feed.

Sorry, James, I can't do that!   :)

Offline joshcryer

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Remote news media will be able to participate in a 6:45 pm ET news conference with @SpaceX about today's #FalconHeavy launch

https://twitter.com/NASAWatch/status/961018396308594688

15 mins, will post a link as I find it.

Offline AC in NC

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I'm counting at least 7 seconds hold down.  I thought it was to be 5 seconds.  Any word on that?

Offline Kabloona

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Some people figured out the TLEs of the FALCON HEAVY/TESLA: https://twitter.com/planet4589/status/961016772391563265

Would help answer the question if the refire will happen in night / be visible from the surface (click link and read replies to get a link to a mapping of it; I do not link it here because it will crash the site it's on, already very slow).

Final burn will occur over Ecuador, at night local time. (9:45 pm Eastern time, which is also Ecuador time, as it happens.)
« Last Edit: 02/06/2018 10:34 pm by Kabloona »

Offline ppb

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I do like the large & friendly Don’t Panic sign on the dashboard. I am sure Mr Adams would approve.
Would you believe...... a car in space?

Offline inonepiece

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Elon Musk news conference update: NET 6:45pm ET.

https://twitter.com/SciGuySpace/status/961015865503289346

Hopefully they'll get a stream out, seems really like an anticlimactic thing to not stream it as well.
Keeval posted one in the updates thread:

Offline joshcryer

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Final burn will occur over Ecuador, at night local time. (9:45 pm Eastern time, but I don't know what time that is in Ecuador.)

No time difference so 9:45 pm in Ecuador. We have 3 hours to get some astronomers / skygazers there to check it out!

Online Lee Jay

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So tesla is very lightwieght no front brakes fitted sugests they have the bare min to keep it looking like a car
Electric cars brake through the motor..Called regenerative braking. ;)

They all have friction brakes as well, as backup, when braking while the battery is full, and for panic stops.

Offline moralec

While watching the SpaceX launch video stream after the fact, I noticed a printed script on the desk at time 38:52.  They were talking at the time about the center booster and drone ship.  Curious, I took a screenshot, flipped it, and tried to enhance the script.  It appears to be a script for if the rocket had exploded on the pad.  :o   Glad they didn't have to use it!  What I can make of it is:

It appears we have had some sort of
explosion on the pad pile......a
....... to ...........  but ...... this
was a test ........ so this is
...... not preferred but .. entirely
unexpected.  We're going to take a
quick break and then
see if we can get more information...
hang tight and we'll be right
Wow!!!!!


Sent from my iPhone using Tapatalk

Online catdlr

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Some people figured out the TLEs of the FALCON HEAVY/TESLA: https://twitter.com/planet4589/status/961016772391563265

Would help answer the question if the refire will happen in night / be visible from the surface (click link and read replies to get a link to a mapping of it; I do not link it here because it will crash the site it's on, already very slow).

http://www.n2yo.com/satellite/?s=43205
It's Tony De La Rosa, ...I don't create this stuff, I just report it.

Online Lee Jay

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So tesla is very lightwieght no front brakes fitted sugests they have the bare min to keep it looking like a car
Electric cars brake through the motor..Called regenerative braking. ;)

Still have disk brakes  the regenerative braking cant stop a car on its own! btw 20 years in hybrid/electric cars  :)

The regen can stop the car on its own, but not in all circumstances.  Well, mine cuts out at 2mph but that's for specific technical reasons.  I could definitely design a system to bring a car to dead stop without friction brakes but, again, not in all circumstances.  BTW, 25 years as a power electrical engineer. :)

Offline floron

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I do like the large & friendly Don’t Panic sign on the dashboard. I am sure Mr Adams would approve.
Would you believe...... a car in space?

I was passed by one of these mothers once, out by the Axel Nebula. I was going flat out and this thing just strolled past me, star drive hardly ticking over. Just incredible.

Offline I14R10

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So tesla is very lightwieght no front brakes fitted sugests they have the bare min to keep it looking like a car

Why? I thought the rocket had enough power to send many more cars to Mars on the same rocket?

Offline JoeAlvord

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I thought the outer cores had titanium grid fins while the center core had aluminum ones.  It could have been too hot for the aluminum and one of them failed, making the center core too unmaneuverable.

Offline joshcryer

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Keeval posted one in the updates thread:

Thanks, I actually thought I was in the update thread for some reason, anyway for cross ref someone else figured out ABC has a link too: http://abcnews.go.com/live click the spacex conf at the bottom

This is one of those moments where I'm watching a car in space on one monitor and the geniuses who put it there about to talk. Really exciting time in space history. Apparently all the national news is opening with the FH launch.

Offline mlindner

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Keeval posted one in the updates thread:

Thanks, I actually thought I was in the update thread for some reason, anyway for cross ref someone else figured out ABC has a link too: http://abcnews.go.com/live click the spacex conf at the bottom

This is one of those moments where I'm watching a car in space on one monitor and the geniuses who put it there about to talk. Really exciting time in space history. Apparently all the national news is opening with the FH launch.

That link is dead. Page doesn't exist.
LEO is the ocean, not an island (let alone a continent). We create cruise liners to ride the oceans, not artificial islands in the middle of them. We need a physical place, which has physical resources, to make our future out there.

Offline envy887

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I thought the outer cores had titanium grid fins while the center core had aluminum ones.  It could have been too hot for the aluminum and one of them failed, making the center core too unmaneuverable.

No, the center core made it to the droneship but failed to land. You can hear the "landing burn start" callout.

Offline martin_nv

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Is Spacex using the TDRS satellites to get us this nice live feed?

Offline Navier–Stokes

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Keeval posted one in the updates thread:

Thanks, I actually thought I was in the update thread for some reason, anyway for cross ref someone else figured out ABC has a link too: http://abcnews.go.com/live click the spacex conf at the bottom

This is one of those moments where I'm watching a car in space on one monitor and the geniuses who put it there about to talk. Really exciting time in space history. Apparently all the national news is opening with the FH launch.

That link is dead. Page doesn't exist.
Try http://abcnews.go.com/live/video/special-live-3

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