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14 votes
3 answers
2k views

What is the new horizontal test stand at SpaceX's McGregor, TX facility meant to test?

If you look on Google Maps, at the McGregor, TX test site, you can see the old test stand (Labelled A) where they test each Falcon 9 first stage for a 9 engine fire as an acceptance test before ...
geoffc's user avatar
  • 80k
2 votes
1 answer
821 views

Falcon Heavy first stage abilities

If you made a '2nd stage to orbit and return' vehicle capable of sitting atop the reusable Falcon Heavy 1st stage, how heavy could it be, and to what height and speed could the 1st stage push it in a ...
Andrew Thompson's user avatar
14 votes
2 answers
1k views

Falcon 9R as SSTO

Seeing as the Falcon 9R first stage is close to being reusable, could it be the basis for an SSTO rocket? In other words, does it have enough performance to make it into orbit, and then boost back and ...
Mike Wise's user avatar
  • 575
1 vote
0 answers
88 views

Why is there only a small difference between Falcon 9 and Falcon Heavy launch prices? [duplicate]

SpaceX's website says that a Falcon 9 launch costs 61 million while a Falcon Heavy launch 85 million. Considering that the Falcon Heavy is almost three times bigger than the Falcon 9, I don't ...
zbarni's user avatar
  • 987
5 votes
2 answers
468 views

Could current (+SLS+FH) launchers use much larger diameter payload fairings?

Can launchers reasonably be equipped with wider payload fairings in order to carry larger (not heavier) payload? What would be the main problems with doing so, air resistance during the early slow ...
LocalFluff's user avatar
8 votes
2 answers
2k views

Questions regarding Falcon Heavy's crossfeed system

My understanding of the Falcon Heavy cross feed system is that the outer cores feed six of the nine engines directly on the center core. Thus, the cross feeds don't pump propellent and oxidizer into ...
Erik's user avatar
  • 10.1k
15 votes
2 answers
3k views

What makes Falcon Heavy with 3 booster 4 times more capable than single booster F9?

Falcon Heavy is expected to take 4 times more mass to LEO than Falcon 9 (53 instead of 13 tons). Are bigger rockets generally about 4/3 times more capable per fuel mass and engine thrust? It doesn't ...
LocalFluff's user avatar
17 votes
3 answers
8k views

Why is there so little price difference between the Falcon 9 and the Falcon Heavy?

A Falcon 9 costs 61.2M dollars. A Falcon Heavy (1 Falcon 9 + 2 boosters) costs 85M dollars. That means 1 booster of the Falcon Heavy costs only 11.9M dollars. So, why does a Falcon 9 (9 Merlin 1D + ...
iännis's user avatar
  • 173
18 votes
3 answers
3k views

What missions could be done with Orion on Falcon Heavy?

Orion is being developed in tandem with the SLS. But Falcon Heavy is scheduled to fly earlier, early 2015, and be cheaper. So I wonder what kind of missions Orion could do with FH. Could it for ...
LocalFluff's user avatar
11 votes
2 answers
4k views

What is the planned date for the Falcon Heavy Demo launch from Vandenberg AFB?

According to Wikipedia and SpaceX, this demo flight is scheduled for 2014. A group of us from San Diego want to come and watch the launch from a distance. Is there any scheduled date for the launch? ...
medos's user avatar
  • 113
11 votes
3 answers
9k views

What are the consequences of Vertical vs Horizontal integration for SpaceX?

One of the issues the Air Force has with using SpaceX as a launch provider is that their payloads are designed for vertical integration. That is, the booster stands on the pad upright, and the ...
geoffc's user avatar
  • 80k
12 votes
1 answer
1k views

What are the differences between the Falcon 9 (1.0) and the Falcon 9 (1.1 or F9R)?

With the change at the 6th launch from the original Falcon 9 design for the first five launches, to the new design, either called Falcon 9 v1.1 or Falcon 9R, it would be useful to understand the ...
geoffc's user avatar
  • 80k

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