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  [Discuss] SpaceX Falcon Heavy maiden launch (Page 2)

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Author Topic:   [Discuss] SpaceX Falcon Heavy maiden launch
Robert Pearlman
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Posts: 38635
From: Houston, TX
Registered: Nov 1999

posted 12-28-2017 09:51 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
SpaceX rolled out and raised its first Falcon Heavy rocket on Pad 39A on Thursday (Dec. 28) for a fit check. From Jeff Foust of SpaceNews on Twitter:
Fit check today, static fire test in early January, launch maybe later in the month.
From Spaceflight Now on Twitter (time lapse video of the rocket being raised here):
The Falcon Heavy is now in place at launch pad 39A at the Kennedy Space Center to begin testing before its maiden flight next month.

From Julia Bergeron on Twitter:

It is real! Look at that SpaceX Falcon Heavy. View from Playalinda National Seashore vista.

Robert Pearlman
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From: Houston, TX
Registered: Nov 1999

posted 12-28-2017 11:08 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
Kennedy Space Center Visitor Complex photo:

Paul78zephyr
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Posts: 644
From: Hudson, MA
Registered: Jul 2005

posted 12-29-2017 06:40 PM     Click Here to See the Profile for Paul78zephyr     Edit/Delete Message   Reply w/Quote
This is really fascinating stuff here. And hopefully very historic.

The FH wiki states that the rocket was re-lowered to the horizontal position on Dec. 29. Was this planned or was it due to an unforeseen issue?

Also, is SpaceX planning on recovering any/all of the first stages on this first launch attempt?

Robert Pearlman
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Posts: 38635
From: Houston, TX
Registered: Nov 1999

posted 12-29-2017 06:50 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
From what I understand, this rollout was only intended as a pad fit check, but whether it was lowered and returned to the HIF early or as scheduled is something only SpaceX knows.

SpaceX intends to recover both side-mounted boosters and the core, the earlier at Landing Zone 1 (where there are now two pads, LZ-1 and LZ-2) and the latter at sea on a droneship.

Robert Pearlman
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From: Houston, TX
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posted 01-02-2018 08:42 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
SpaceX photos

Robert Pearlman
Editor

Posts: 38635
From: Houston, TX
Registered: Nov 1999

posted 01-02-2018 08:57 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
From SpaceX on Instagram:
With more than 5 million pounds of thrust at liftoff — equal to approximately eighteen 747 aircraft at full power — Falcon Heavy will be the most powerful operational rocket in the world by a factor of two.

oly
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Posts: 252
From: Perth, Western Australia
Registered: Apr 2015

posted 01-02-2018 11:12 PM     Click Here to See the Profile for oly   Click Here to Email oly     Edit/Delete Message   Reply w/Quote
Are there any details available on the structure that connects the three Falcon 9 rockets together or any structural changes to the rockets so they can stay strapped together until separation?

There does not seem to be any significant structure visible to that could keep 1.7 million lb thrust each side attached. Of course I do believe SpaceX have designed something capable I am interested in more detail but cant find anything online covering this.

damnyankee36
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From: Alamogordo, NM USA
Registered: Aug 2017

posted 01-04-2018 01:59 PM     Click Here to See the Profile for damnyankee36   Click Here to Email damnyankee36     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by SpaceAholic:
Except that thermodynamic conditions also get a vote.
RE: Tire Pressures in a vacuum: Simply remove the valve stem cores!

Robert Pearlman
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Posts: 38635
From: Houston, TX
Registered: Nov 1999

posted 01-04-2018 06:54 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
From Elon Musk on Instagram:
Hold-down test fire next week. Launch end of the month.

Robert Pearlman
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Posts: 38635
From: Houston, TX
Registered: Nov 1999

posted 01-11-2018 09:33 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
SpaceX is preparing to conduct its first Falcon Heavy static fire test today (Jan. 11). Per Spaceflight Now:
SpaceX does not reveal details of its testing program, but today's window for the hot fire is believed to run 1-7 p.m. EST (1800-0000 GMT).

cspg
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Posts: 5777
From: Geneva, Switzerland
Registered: May 2006

posted 01-11-2018 10:01 AM     Click Here to See the Profile for cspg   Click Here to Email cspg     Edit/Delete Message   Reply w/Quote
Why is SpaceX so secretive about its rocket testing?

Jim Behling
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From: Cape Canaveral, FL
Registered: Mar 2010

posted 01-11-2018 10:17 AM     Click Here to See the Profile for Jim Behling   Click Here to Email Jim Behling     Edit/Delete Message   Reply w/Quote
Why does it need to be more open? They aren't under any rules or law to be more open. It takes time and resources to provide daily statuses.

cspg
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From: Geneva, Switzerland
Registered: May 2006

posted 01-11-2018 11:07 AM     Click Here to See the Profile for cspg   Click Here to Email cspg     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Jim Behling:
It takes time and resources to provide daily statuses.

Even a little tweet?

Elon Musk communicates about his big rocket eventually blowing up on its first flight and when testing time comes, a deafening silence? Really? Well, I hope these people will never be in charge of the space program, manned or unmanned, unless the communication obligations are the same as NASA's.

Robert Pearlman
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Posts: 38635
From: Houston, TX
Registered: Nov 1999

posted 01-11-2018 11:29 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
From Spaceflight Now on Twitter:
Fueling of the Falcon Heavy rocket in Florida has started as vapors appear near SpaceX's new rocket. The Falcon Heavy's first hold-down test-firing could occur shortly.

Robert Pearlman
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Posts: 38635
From: Houston, TX
Registered: Nov 1999

posted 01-11-2018 11:54 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
SpaceX has scrubbed today's hot fire attempt.

Paul78zephyr
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From: Hudson, MA
Registered: Jul 2005

posted 01-12-2018 06:58 PM     Click Here to See the Profile for Paul78zephyr     Edit/Delete Message   Reply w/Quote
Have they rescheduled the test fire? How long will the engines will run for when the test is actually run?

Robert Pearlman
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Posts: 38635
From: Houston, TX
Registered: Nov 1999

posted 01-12-2018 07:10 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
The vehicle was erected on the pad today, but at last report, the static fire was expected no earlier than Saturday evening (Jan. 13) Monday afternoon (Jan. 15).

The static fire is expected to be about 15 seconds long.

Robert Pearlman
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From: Houston, TX
Registered: Nov 1999

posted 01-14-2018 08:43 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
From Spaceflight Now on Twitter:
The engine test firing for the SpaceX Falcon Heavy rocket has slipped until Tuesday [Jan. 16], with the opening of the window set for 4 p.m. (2100 GMT).

oly
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Posts: 252
From: Perth, Western Australia
Registered: Apr 2015

posted 01-15-2018 05:51 AM     Click Here to See the Profile for oly   Click Here to Email oly     Edit/Delete Message   Reply w/Quote
For someone more familiar with operations at the cape, what considerations and requirements need to be set for the engine test fire time window?


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