All Questions
Tagged with spacex falcon-heavy
162
questions
3
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1
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368
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Feasibility of landing all 3 Cores of the Falcon Heavy on Droneships [duplicate]
All of the Falcon Heavy launches up to now are either expending the Center core and landing the side boosters on land, or expending all of them (some examples: Falcon Heavy test flight, both boosters ...
0
votes
1
answer
102
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Landing Zones 1 and 2 in Cape Canaveral and yet launching from KSC?
On Google Earth, I saw Cape Canaveral and Kennedy Space Center (KSC) are separate sites. However, I do not understand why SpaceX lands it's boosters on LZ 1 and 2 at Cape Canaveral but launches them ...
0
votes
1
answer
239
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Are Falcon Heavy fairings reused?
I heard a lot about SpaceX reusing the fairings from the Falcon 9. Do they/ are they planning to do the same for Falcon Heavy?
- 3,746
22
votes
4
answers
7k
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Why are only 2 out of the 3 boosters on Falcon Heavy reused?
In this picture it shows that the side boosters of the Falcon heavy will land. However, the middle booster is not going to land. Why is this the case?
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1
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1
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537
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Why hasn’t SpaceX sent anything to Mars yet?
SpaceX has the rockets to send some payload to Mars. The Falcon heavy can carry up to 16.8 tons to Mars according to this answer: Why can Falcon Heavy bring 4.2 times as much mass to Mars than F9, but ...
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2
votes
2
answers
493
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Why doesn’t SpaceX use Falcon Heavy to launch Starlink satellites?
In this chart that I found here (https://i.sstatic.net/f8wOR.jpg)
It shows that the price of 1 kg to LEO is cheaper on the Falcon Heavy than the Falcon 9. Also the Falcon Heavy can carry more payload ...
- 5,884
6
votes
1
answer
1k
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Will Roadster ever encounter Mars?
During it first closest approach to Mars, it was a mere 5 million miles away from the red planet. According to observer.com, it's ultimate fate will be to crash into the Earth or Venus. However, since ...
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2
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0
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145
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Do the maximum launch capability figures of Falcon Heavy includes payload adaptor fairings or launch vehicle adaptors?
I would like to learn if stated payload capabilities of Falcon Heavy includes PAF. According to Falcon User's Guide, SpaceX has two different PAF for Falcon 9. In the said document, smaller PAF doesn'...
0
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0
answers
989
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What is the reliability of the Merlin engine?
I know that Merlin is extremely reliable, at least over 99%. I do know of one time when one failed, on Falcon 9's fourth launch. SpaceX had used hundreds, if not thousands, of them. I assume there is ...
- 3,746
2
votes
0
answers
161
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What is the cost breakdown of a Falcon Heavy launch?
I don't know if this was already asked, but I'm very curious about the cost breakdown of a Falcon Heavy launch and what the difference is from Falcon 9's cost per launch. Would it be more or less per ...
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3
votes
0
answers
80
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Spacex NASA GOES-U 2024 contract to use Falcon Heavy?
https://www.nasa.gov/press-release/nasa-awards-launch-services-contract-for-goes-u-mission
Why would they use Falcon-Heavy instead of Falcon-9 FT for the GOES-U 2024 satellite launch?
Falcon-9 FT has ...
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11
votes
2
answers
3k
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What is this line, what is it called, what is the reason behind it?
I started following SpaceX recently.
I used to read the updates but now I am diving deeper to learn new things.
SpaceX is fascinating and I really like everything about it.
But I have question, I don'...
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17
votes
2
answers
739
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What damage/repairs have to be done to the launch pad every time SpaceX launches?
As SpaceX is a company that is very focused on rapid reusability, low-cost operation and a philosophy of "the best part is no part", what repairs have to be done to the towers and general ...
- 703
3
votes
0
answers
150
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Space-X Falcon-9 and Falcon Heavy fuel consumed for landing
The question is, how much fuel is used by each of above rockets for landing (in % of whole fuel of the rocket) as a function of three following components - payload, orbit and descend trajectory (land/...
- 131
3
votes
2
answers
507
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How and/or why did Elon Musk mistweet Roadster's C3 so badly?
In this answer to How close would the Tesla Roadster with Starman have to get to Earth in order to become attracted and fall on Earth? I just wrote:
When Roadster was launched from Earth Elon Musk ...
- 149k
3
votes
0
answers
137
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What is this black rod in falcon heavy on both boosters?
There are black rods on both boosters and are connected with each other.One is thicker than other two.What is its purpose?
- 1,506
7
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0
answers
197
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Does the low gravity on Moon eliminate the need for a launch pad/flame trench for a reusable rocket launch?
I'm new to rocket science and I learned how the rockets do not reach full thrust immediately and isn't really stable for the initial couple of seconds - hence the need for "launch clamps" and a ...
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21
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3
answers
6k
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Why is the Falcon Heavy center core recovery done at sea?
Why does SpaceX attempt sea recoveries of the Falcon Heavy center core instead of staying at altitude and performing a land based recovery at a different site?
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21
votes
1
answer
2k
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What does 'Rocket is in self align' mean?
I've noticed during SpaceX streams (this could happen with other LSPs but I've only noticed it with SpaceX) that shortly after the vehicle goes to internal power the controller says "Vehicle is in ...
- 959
27
votes
5
answers
10k
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Why doesn't SpaceX land boosters in Africa?
Apart from the obvious answer that it'd take too long to get the booster back across the Atlantic, why doesn't SpaceX leave the main or centre booster in space a little bit longer and guide it to land ...
- 533
7
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1
answer
315
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Did the Falcon Heavy center core miss the drone ship or abort?
On the recent Space Test Program-2 Falcon Heavy launch, the center core crashed into the ocean. Unlike the test flight, however, it was not due to running out of TEA-TEB lighter fluid.
From the video ...
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2
votes
2
answers
159
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Are there payload lights turning on and off in orbit on SpaceX STP-2?
In the video of the SpaceX STP-2 Mission during satellite deployment after around T+01:21:35 there are some areas that abruptly blink brightly. It's too fast and ...
- 149k
4
votes
1
answer
235
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Can we get to Mars today using current rockets/technology?
I was wondering if, using the rockets we have today (I'm guessing the most likely candidate is the Falcon Heavy), we could send at least 1 human to Mars. For arguments sake, let's ignore the fact it ...
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10
votes
2
answers
956
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How many SpaceX 2nd stages are in heliocentric orbits?
I can think of one particularly famous SpaceX 2nd stage in heliocentric orbit that even has its own website: https://www.whereisroadster.com/ and I know one was used to send DSCOVR towards Sun-Earth ...
- 149k
0
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1
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221
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Why is DSX two satellites connected by a ring, and what are all those tubes? (upcoming SpaceX STP-2 payload)
Reminiscent of a chrome-plated exhaust manifold from a 20th century vehicle.
The Teslarati article SpaceX’s Falcon Heavy flies a complex mission for the Air Force in launch video discusses the ...
- 149k
8
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6
answers
4k
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What is "propulsive passivation" and why will the SpaceX STP-2 mission do it?
The Teslarati article SpaceX’s Falcon Heavy flies a complex mission for the Air Force in launch video discusses the upcoming third Falcon Heavy mission STP-2 and quotes the caption on the linked ...
- 149k
-2
votes
1
answer
299
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What barge height limit warning sign is Scott Manley describing? (Falcon Heavy core fell into ocean)
In the beginning of Scott Manley's new video The First Commercial Lunar Spacecraft - 20 Years before Israel & Beresheet he takes a moment to talk about recent Falcon Heavy core falling off the ...
- 149k
13
votes
1
answer
2k
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Why did the Falcon Heavy center core fall off the ASDS OCISLY barge?
On the second flight of the Falcon Heavy, they successfully landed the side cores at LZ-1 and LZ-2, and the center core downrange on the ASDS Of Course I Still Love You.
Reports have come in that ...
- 80k
1
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0
answers
112
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SpaceX Avionics [closed]
Just wondering what are some avionics aboard the falcon 9 and heavy. also what are some avionics on the dragon? Just general avionics that play a pivotal role in space travel.
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6
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2
answers
788
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What are these big shiny metallic "lumps" on the bottom edge of each Falcon Heavy nozzle?
What are these big shiny metallic "lumps" on the bottom edge of each nozzle of each core of this Falcon Heavy image from the Teslarati article SpaceX reveals Falcon Heavy Block 5 in first official ...
- 149k