Author Topic: LIVE: Sea Launch - JCSat-9 - April 12 (Read 40855 times)

Svetoslav · « **Reply #60 on:** 04/13/2006 12:25 am »

I always wondered why people launch rockets from sea. It should be more expensive to build the launch system.

Stardust9906 · « **Reply #61 on:** 04/13/2006 12:29 am »

yinzer · « **Reply #62 on:** 04/13/2006 12:30 am »

Quote

Jamie Young - 12/4/2006 5:02 PM

How do they get enough propellent into such a small upper stage for these long burns?

Dense propellant - LOX/Kerosene is 6 times as dense as LOX/LH2.
Low thrust - the Block DM engine has less thrust than the RL-10 on the centaur.

Chris Bergin · « **Reply #63 on:** 04/13/2006 12:30 am »

T+48. Block DM second burn.

Spirit · « **Reply #64 on:** 04/13/2006 12:30 am »

Because there is no risk of fire and the platform is on the equator which means that the rocket can gain more speed from the spinning of the Earth.

Svetoslav · « **Reply #65 on:** 04/13/2006 12:33 am »

Thank you. Simple physics!

2 minutes till DM engine shutdown.

Chris Bergin · « **Reply #66 on:** 04/13/2006 12:36 am »

Shutdown of second burn confirmed.

Stardust9906 · « **Reply #67 on:** 04/13/2006 12:37 am »

Svetoslav · « **Reply #68 on:** 04/13/2006 12:40 am »

As there are five minutes to space separation, it's almost clear that today's launch was a complete success.

Chris Bergin · « **Reply #69 on:** 04/13/2006 12:45 am »

Spacecraft seperation in one minute.

Svetoslav · « **Reply #70 on:** 04/13/2006 12:46 am »

Separation confirmed!

Chris Bergin · « **Reply #71 on:** 04/13/2006 12:46 am »

Spacecraft seperation! Congrats guys !

Stardust9906 · « **Reply #72 on:** 04/13/2006 12:46 am »

Bruce H · « **Reply #73 on:** 04/13/2006 02:06 am »

Thanks for the coverage. I know you guys love Sea Launch here, and you have to admire how they are carrying out their missions.

British NASA · « **Reply #74 on:** 04/13/2006 09:06 am »

How popular could sea launches become? Does it have a significant cost saving? I ask as there's a lot of infrastructure involved with the oil rig type pad and the big mission control ship.

anik · « **Reply #75 on:** 04/13/2006 03:52 pm »

According to my source, the next Sea Launch will be in June (possibly on June 11)...

By the way, as always, thanks for the great live launch coverage!...

David BAE · « **Reply #76 on:** 04/13/2006 04:14 pm »

Do we have any Sea Launch people here. One of my collegues is looking to join them. Maybe some of the Lockheed Martin people can help?

Chris Bergin · « **Reply #77 on:** 04/13/2006 04:58 pm »

Quote

David BAE - 13/4/2006 5:14 PM

Do we have any Sea Launch people here. One of my collegues is looking to join them. Maybe some of the Lockheed Martin people can help?

I'll mail a couple of people and see if they can help.

censored account · « **Reply #78 on:** 04/13/2006 05:40 pm »

Yep, You have one Sea Launch guy here. We are getting ready to head home from this mission and get ready for the next launch (June 5th?). Thanks for the great coverage guys!

Bob

Chris Bergin · « **Reply #79 on:** 04/13/2006 05:45 pm »

Welcome to the site - and congrats on another successful launch!

Hope you get to hang around these parts when you've got time, as there's a nice amount of interest for Sea Launch missions.