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Re: SpaceX News

Posted: Wed Feb 10, 2016 8:31 pm
by KitemanSA
They need to switch to a SWATH barge. Maybe even a thrust-augmented stability SWATH barge.

Re: SpaceX News

Posted: Thu Feb 25, 2016 2:52 am
by ladajo
For those who missed it, SpaceX launch for today (24 Feb, 2016), punts to tomorrow, same time window of 1846ish evening burn.
Barge landing is the goal...

Re: SpaceX News

Posted: Thu Feb 25, 2016 1:47 pm
by krenshala
But SpaceX has stated they don't have high hopes of pulling off the barge landing since this launch is for a geo-synch insertion (higher delta-v requirements, so less fuel left for the landing and/or its just moving east faster than with other barge landing attempts).

Re: SpaceX News

Posted: Thu Feb 25, 2016 4:23 pm
by ladajo
As I understand, they are positioning the barge to help make up for fuel concerns for the high energy boost requirements. This is the main reason they are working the barge angle. To allow for recoveries down range when the boost did not leave enough juice for a flyback to dirt. I have not seen anything yet that indicates they are not going for the barge this launch.

Re: SpaceX News

Posted: Thu Feb 25, 2016 5:06 pm
by ladajo
Here is what SpaceX put out in the press kit:
This mission is going to a Geostationary Transfer Orbit. Following stage separation, the first stage of the
Falcon 9 will attempt an experimental landing on the “Of Course I Still Love You” droneship. Given this
mission’s unique GTO profile, a successful landing is not expected.
Should be entertaining at a minimum. Touchdown? Splash? Splash with Boom? Touchdown with Boom? Just Boom? :)

Re: SpaceX News

Posted: Thu Feb 25, 2016 5:34 pm
by Giorgio
ladajo wrote:Should be entertaining at a minimum. Touchdown? Splash? Splash with Boom? Touchdown with Boom? Just Boom? :)
Hopefully not a "touchdown with boom + Sink"! :wink:

Re: SpaceX News

Posted: Thu Feb 25, 2016 5:56 pm
by ladajo
oooh! We should add that one: "Boom & Sink"

I am thinking rocket runs out of gas before decell complete, lawn darts barge, boom! gurgle...

Re: SpaceX News

Posted: Thu Feb 25, 2016 9:05 pm
by Diogenes
ladajo wrote:oooh! We should add that one: "Boom & Sink"

I am thinking rocket runs out of gas before decell complete, lawn darts barge, boom! gurgle...



:)

Re: SpaceX News

Posted: Thu Feb 25, 2016 9:43 pm
by Giorgio
Should the Gurgle happen, I wonder if they will posthumously rename it "“Of Course I Still Love You From The Bottom Of The Sea” :D

Re: SpaceX News

Posted: Thu Feb 25, 2016 11:47 pm
by Diogenes
Scrubbed. D@mn.

Re: SpaceX News

Posted: Fri Feb 26, 2016 12:10 am
by Maui
I've always had a lot of enthusiasm for SpaceX, but it is getting harder and harder not to get disenfranchised. As cool as a lot of the things they are doing are, if they can't get to the point where they can meet basic customer needs of launching s*** in a safe and timely fashion, it's all gonna be irrelevant.

https://twitter.com/george_sowers/statu ... 4165330944

Re: SpaceX News

Posted: Fri Feb 26, 2016 1:25 am
by Giorgio
Scrubbed due to slower than expected loading of LOX. I guess they will need to revise the procedures and might take few days before next attempt.

Maui, is understandable to be pissed off, but considering the sheer complexity of what they have achieved in the last 3 years i don't think we can complain.
Customers in general will not care for few days or even a month delay as long as the chances of delivering the payload to orbit increase of even 1 %.

Re: SpaceX News

Posted: Fri Feb 26, 2016 8:44 am
by kunkmiester
It's an issue I've mentioned before. Satellite launchers can understand a window of a few weeks to get optimal results, but when you hit the bigger market, people who schedule time off work for their space vacation, used to airlines running in all but the most severe weather, you're going to have to vastly improve your ability to launch on time.

I don't get the LOX thing though. Are they still working on the process for that? I'd have thought they'd know how long fueling the rocket takes for a while now.

Re: SpaceX News

Posted: Fri Feb 26, 2016 9:16 am
by Skipjack
kunkmiester wrote:It's an issue I've mentioned before. Satellite launchers can understand a window of a few weeks to get optimal results, but when you hit the bigger market, people who schedule time off work for their space vacation, used to airlines running in all but the most severe weather, you're going to have to vastly improve your ability to launch on time.

I don't get the LOX thing though. Are they still working on the process for that? I'd have thought they'd know how long fueling the rocket takes for a while now.
They are now pre- chilling the fuel and oxidizer to fit more fuel into the same tank volume and I guess that process still has some minor issues.

Re: SpaceX News

Posted: Fri Feb 26, 2016 10:54 am
by Giorgio
kunkmiester wrote:It's an issue I've mentioned before. Satellite launchers can understand a window of a few weeks to get optimal results, but when you hit the bigger market, people who schedule time off work for their space vacation, used to airlines running in all but the most severe weather, you're going to have to vastly improve your ability to launch on time.
I agree, but that's the future when the market will be mature. Right now we are still in early stage of development of commercial passenger market for space.

In the early days of transoceanic flights there was several attempts from several companies before the right model of business and the right procedures was identified. Those first flights was scheduled once every week or more, and it was not uncommon for a flight to be cancelled or moved of few days. As companies built experience the service improved. That's the standard way in which all markets develop.

For now I suggest we just sit and enjoy Spacex success and failures. We are witnessing history after all and this is something that in the future (once commercial space flight will become the norm) many people will envy us for.