Falcon Heavy Flight #2 - Arabsat 6A - LC-39A

[e-FTW]

I’m ready, Are you?

 

[NoirMS]

I’m ready, Are you?

View attachment 395756

yep! be back tomorrow...

 

[Grendal]

Same webcast but on the latest page:

 

[e-FTW]

@Grendal Found another detail on Reddit for the first post: Center Core will land on OCISLY, 967 km downrange

IIRC, this will be a record for distance from the pad.

 

[ecarfan]

From the reddit discussion: “Remember wind shear is not wind speed. It's the difference in wind speed between the top and bottom of the rocket. What that difference does is turn the rocket. The rocket corrects with an opposing torque by vectoring its engines.”
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My mental circuit breakers trip when I try to envision how rapidly that engine vectoring has to occur to be effective given that the rocket is moving at thousands of km/h.

 

[Joe F]

If the white M3 owner who unfortunately was rear ended leaving KSC last night is here, I’m sorry for your loss. While I didn’t see the damage, my wife said it looked bad.

 

[mongo]

From the reddit discussion: “Remember wind shear is not wind speed. It's the difference in wind speed between the top and bottom of the rocket. What that difference does is turn the rocket. The rocket corrects with an opposing torque by vectoring its engines.”
———————————————————————————————————

My mental circuit breakers trip when I try to envision how rapidly that engine vectoring has to occur to be effective given that the rocket is moving at thousands of km/h.

Forward velocity amplifies the effect of an angular trajectory error. The amount of error that needs corrected is based on the rotational inertia and the disturbing force. The needed rate of correction depends on the allowable track deviation and the maximum disturbing rotation. So it may not be as brain breaking as you are imagining.

Landing the booster may be more difficult due to tighter positional requirements and less inertia to reduce disturbance effects.

 

[MacGreiner]

Winds look better for today:

Chris G - NSF on Twitter

 

[e-FTW]

I’m ready, Are you?

View attachment 395756

Am now even readier! Rocking this guy: Starman by blipshift | Car Shirts and Apparel for Enthusiasts

 

[e-FTW]

And SpaceX confirmation that things are looking good: SpaceX on Twitter

 

[808?]

We are live.

 

[diplomat33]

All 3 boosters landed safely!!!!!

 

[Mkorpal]

Incredible, simply incredible.

 

[Uncle Paul]

Two side boosters landed safely back on launch pads, while the central main booster landed safely on the floating recovery platform in the Atlantic ocean.

Remarkable accomplishment.

 

[e-FTW]

I think even the Russian judge gave a 10 for that choreographed landing.

 

[GlmnAlyAirCar]

I'm in awe

 

[mongo]

Welp, SpaceX has proven they can land 1, 2, and 3 boosters from a launch. Since 4 would be silly, it's time to switch back to one, but make it really really big...

(And a second stage while they're at it)

 

[Zaxxon]

 

[e-FTW]

36701km/h sounds like the fastest speed I've seen on a launch so far.

 

[ecarfan]

Wow! Perfect mission in every aspect. Wish we had live video of the center core landing, but I was very happy to see it vertical on OCISLY! It was super cool to see live video from all three boosters as they descended.