Questions tagged [g-force]
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23
votes
4answers
8k views
If human space travel is limited by the G force vulnerability, is there a way to counter G forces?
I read somewhere that prolonged G forces (even 2 Gs) are not tolerated by human physiology and that this ultimately limits our ability to sustain space travel.
Are there any tactics to reduce G force ...
10
votes
1answer
193 views
Were shuttle seats reconfigured between launch and reentry to account for the different direction of acceleration?
During launch, the g-force felt by the crew is directly back toward the engines and maxed out at about 3g. During reentry, it also maxed out at about 3g, but pointed at about a 45 degree angle down ...
2
votes
2answers
137 views
G - forces imparted by launchers
How can one know the G forces imparted from the technical data presented on the websites of launch vehicles? I am interested in finding a way to theorise the max G-forces imparted by researching ...
38
votes
8answers
11k views
Could a spacecraft spin so fast that it spontaneously deconstructs?
I have to admit, first and foremost, that this was inspired by Kerbal Space Program. During a launch I decided to hold the "E" key and spin my rocket to the fastest rotation speed possible. At some ...
4
votes
2answers
259 views
How much G force is applied when correcting an orbit around Earth?
How much g force is applied to a satellite to correct a decaying orbit if done each orbit? How long does it take to correct an orbit on the average?
I understand there are variables as in which orbit ...
12
votes
2answers
1k views
How much acceleration g-force can prevent pilot from moving their arms?
Assuming that the craft’s engine is capable of any amount of acceleration, how much g-force would prevent the pilot from being able to move their limbs in order to control the space craft?
There is ...
0
votes
4answers
983 views
g-forces of suborbital versus orbital passenger travel
I would like to pose a fact-checking question about this article, which is about the Musk/SpaceX idea of using rockets for travel between terrestrial locations.
https://www.theverge.com/2017/9/29/...
1
vote
3answers
283 views
Is it possible, using known acceleration laws, to drastically lower force required to leave Earth's Gravitational pull?
Just a silly theory to illustrate my question. If we were to build a globe (or a detached runway, could be any structure really as long as it goes around earth and meets on both ends) around the earth,...
7
votes
2answers
303 views
How would a bulk payload like fuel (instead of delicate technology) change boost to LEO optimization?
This answer suggests that if a payload were simply bulk propellant, such as LH2 and LOX, and not delicate technology such as an interplanetary probe or communications satellite, then there may be some ...
0
votes
0answers
121 views
What factors prohibit building a space cannon to launch raw materials? [duplicate]
I am envisioning a magnetic cannon to launch materials directly from Earth's surface to geosynchronous equatorial orbit. The parameters I have in mind are a near vacuum launch tube, about 10 km in ...
-2
votes
1answer
152 views
Upper G acceleration limit for a small thorium nuclear reactor and electronics
For a small Orion nuclear pulse probe that is accelerating to 10% light speed:
What would be the upper G force acceleration limit for electronics, a small thorium based nuclear reactor, pulse units ...
19
votes
3answers
2k views
How hard is it on the crew to go through the 14+ g's of a launchpad abort of the Soyuz, or the Falcon system?
It's only for 5 seconds, but that is an awful lot of force. The Falcon system is similar and presumably also involves very high-g forces. Could injury result from the abort itself in either case?
8
votes
3answers
6k views
What G-forces do different launchers cause?
What G-force is the payload exposed to on different launchers? Are there more gentle and more rough rockets? And do other factors, like vibrations, differ significantly too? Some scientific payloads ...
