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SpaceX’s Falcon Heavy successfully launches

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Re: SpaceX’s Falcon Heavy successfully launches

#271

Post by DisposableMike »

electricslpnsld wrote: post #253
DaiPlusPlus wrote: post #111

Earlier quoted context omitted.

It’s like that at BlueOrigin too. I visited twice (they gave me a job offer but withdrew it after I got badmouthed by a reference, gah). They have an avionics software engineering room right next to where they assemble the engines.

> they gave me a job offer but withdrew it after I got badmouthed by a reference Why in the world would someone agree to be a reference and then bad mouth afterwards? Some folks...

Maybe they were put down as a reference without their prior approval?

Re: SpaceX’s Falcon Heavy successfully launches

#272

Post by phpnode »

webXL wrote: post #252
pulkitanand wrote: post #152

They lost the center core: https://www.youtube.com/watch?v=-B_tWbjFIGI&t=2307 But 2/3 is impressive! Seeing the simultaneous landings had me in tears!

Was there anything special about the center core other than boosting longer and needing to land out at sea? Seems like they've landed plenty out at sea, but not while landing two on land. I thought this was impressive: "With a total of 27 first-stage engines, Falcon Heavy has engine-out capability that no other launch vehicle can match—under most payload scenarios, it can sustain more than one unplanned engine shutdo…

The centre core is significantly strengthened to cope with the additional load from the side boosters. It also has slightly different aerodynamic properties because of the fixed struts that hold the boosters in place. Either of these could have affected the landing. They'll collect data and fix it.

Re: SpaceX’s Falcon Heavy successfully launches

#273

Post by OtterCoder »

pkroll wrote: post #242
Paul-ish wrote: post #207

Earlier quoted context omitted.

Does anyone know how long a book (paper) would last in space?

Why wouldn't it last functionally forever? It's now in vacuum, and eventually will get to whatever temperature the sun can bake it to at that distance from the sun... I'm guessing it'll be there as long as the car is.

Radiation might be a concern. It could possibly embrittle the paper over time.

Re: SpaceX’s Falcon Heavy successfully launches

#274

Post by LewYard »

alkonaut wrote: post #235
LewYard wrote: post #216

>> [...] the rocket’s payload [...] will pass through the Van Allen belt — a zone of charged particles and extreme radiation surrounding Earth. Assuming it makes it through that radioactive beatdown [...] What can happen ? Did a payload already exploded passing through the Van Allen belt ? Are batteries a problem ?

I guess the worse that can happen is that computer chips and similar (camera sensors etc) are damaged? Can’t see what would make it not “make it through” but I could see how we might never I find out.

Oh okay. And last Elon's tweet says that the last stage still has a burn to do after the belt. So if the chips are damage it may be impossible to do the burn.

https://twitter.com/elonmusk/status/960988527159795712

Re: SpaceX’s Falcon Heavy successfully launches

#276

Post by detuur »

fokinsean wrote: post #64
TeMPOraL wrote: post #8

I. Am. Just. Speechless. Perfect takeoff, 2 simultaneous landings (still waiting for confirmation on the droneship landing), the car is in orbit. I don't remember being so nervous watching a launch video since... Space Shuttle missions, I think. Great job, SpaceX!

Yup that was amazing. Slightly related, I'm already nervous for the James Webb Telescope launch. Maybe Spacex should launch it :)

1 successful launch vs 1 launch anomaly in 16 years and 80 consecutive succesful launches.

I know where I'm putting my money.

Re: SpaceX’s Falcon Heavy successfully launches

#278

Post by FLUX-YOU »

TeMPOraL wrote: post #8

I. Am. Just. Speechless. Perfect takeoff, 2 simultaneous landings (still waiting for confirmation on the droneship landing), the car is in orbit. I don't remember being so nervous watching a launch video since... Space Shuttle missions, I think. Great job, SpaceX!

Watching the car orbit and the Earth's reflections in the windshield and paint and Starman's visor is sublime (sometimes goes to cameras of the engine/orbit overview)

https://www.youtube.com/watch?v=aBr2kKAHN6M

e.g. https://i.imgur.com/Yu6gRar.jpg

This is all I'm watching for the rest of the day https://imgur.com/oKWTAQk

Re: SpaceX’s Falcon Heavy successfully launches

#279

Post by skellera »

electricslpnsld wrote: post #253
DaiPlusPlus wrote: post #111

Earlier quoted context omitted.

It’s like that at BlueOrigin too. I visited twice (they gave me a job offer but withdrew it after I got badmouthed by a reference, gah). They have an avionics software engineering room right next to where they assemble the engines.

> they gave me a job offer but withdrew it after I got badmouthed by a reference Why in the world would someone agree to be a reference and then bad mouth afterwards? Some folks...

Jealousy, anger, etc. Sadly, it’s the nature of people. Can’t assume from the context but I know some people who might do that.
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