Does flying two boosters close together affect efficiency?Does the Perseid peak affect mission launches?Why do rockets separate from both its strap-on booster cores simultaneously instead of one at a time? (Delta IV Heavy, Falcon Heavy, Angara)Could the solid boosters of SLS be paired together to a rescue launcher?How does static test firing before launch affect design of rocket mass and structure?How does ITAR affect SpaceX's display of the Orbcomm first stage outside their headquarters?Does SpaceX have any significant additional legal hurdles for flying private citizens around the moon?Does SpaceX name individual boosters?To what extent, if any, does the exterior paint color of a launch vehicle affect its propellant & vehicle thermal management?What if an engine fails to ignite on Falcon Heavy?Did Elon Musk's Tesla Roadster actually launch to space?
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Does flying two boosters close together affect efficiency?
Does the Perseid peak affect mission launches?Why do rockets separate from both its strap-on booster cores simultaneously instead of one at a time? (Delta IV Heavy, Falcon Heavy, Angara)Could the solid boosters of SLS be paired together to a rescue launcher?How does static test firing before launch affect design of rocket mass and structure?How does ITAR affect SpaceX's display of the Orbcomm first stage outside their headquarters?Does SpaceX have any significant additional legal hurdles for flying private citizens around the moon?Does SpaceX name individual boosters?To what extent, if any, does the exterior paint color of a launch vehicle affect its propellant & vehicle thermal management?What if an engine fails to ignite on Falcon Heavy?Did Elon Musk's Tesla Roadster actually launch to space?
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When returning the side boosters of the latest Falcon Heavy launch to their landing site, their trajectories keep them right next to each other, and I noticed that a "wall" of vapor is visible midway between them. This made me wonder whether flying two boosters near each other has any performance effects in terms of fuel savings or waste. Does anyone know?
spacex launch
asked 10 hours ago
foobarbecuefoobarbecue
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add a comment |
$begingroup$
When returning the side boosters of the latest Falcon Heavy launch to their landing site, their trajectories keep them right next to each other, and I noticed that a "wall" of vapor is visible midway between them. This made me wonder whether flying two boosters near each other has any performance effects in terms of fuel savings or waste. Does anyone know?
spacex launch
asked 10 hours ago
foobarbecuefoobarbecue
4562 silver badges10 bronze badges
$endgroup$
add a comment |
$begingroup$
When returning the side boosters of the latest Falcon Heavy launch to their landing site, their trajectories keep them right next to each other, and I noticed that a "wall" of vapor is visible midway between them. This made me wonder whether flying two boosters near each other has any performance effects in terms of fuel savings or waste. Does anyone know?
spacex launch
asked 10 hours ago
foobarbecuefoobarbecue
4562 silver badges10 bronze badges
$endgroup$
When returning the side boosters of the latest Falcon Heavy launch to their landing site, their trajectories keep them right next to each other, and I noticed that a "wall" of vapor is visible midway between them. This made me wonder whether flying two boosters near each other has any performance effects in terms of fuel savings or waste. Does anyone know?
spacex launch
spacex launch
asked 10 hours ago
foobarbecuefoobarbecue
4562 silver badges10 bronze badges
asked 10 hours ago
foobarbecuefoobarbecue
4562 silver badges10 bronze badges
asked 10 hours ago
foobarbecuefoobarbecue
4562 silver badges10 bronze badges
asked 10 hours ago
foobarbecuefoobarbecue
4562 silver badges10 bronze badges
asked 10 hours ago
foobarbecuefoobarbecue
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4562 silver badges10 bronze badges
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add a comment |
2 Answers
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$begingroup$
There is likely minimal effect.
At rocket speeds, there is very little effect of shear stress, the only significant effect is particles hitting the leading surface of the rocket.
Also due to how fast hey are going, the effect of the rocket on "pushing air out of the way" does not have time to get far ahead of the rocket and this drops further behind as you move radially away from the rocket.
In fact the 'wall' in your question is the boundary of this region of influence.
As the leading bit of neither rocket in inside the volume effected by the other, neither is significantly effected (at least in terms of net force, vibration/temperature etc is a different game as these don't just effect the leading bits).
answered 7 hours ago
ANoneANone
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$begingroup$
If the boosters were closer together, like at separation, there is a complex interplay of shockwaves that produces lots of turbulence. If the vehicles stay in each other’s turbulence, it will need to be corrected for by the guidance system, probably using up more RCS fuel. These boosters are far enough apart during descent that they are outside of each other’s shockwave.
The Falcon Heavy boosters are detached from the core with a pneumatic ejection system in order to have them out of the way quickly.
answered 1 hour ago
CourageousPotatoCourageousPotato
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2 Answers
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2 Answers
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$begingroup$
There is likely minimal effect.
At rocket speeds, there is very little effect of shear stress, the only significant effect is particles hitting the leading surface of the rocket.
Also due to how fast hey are going, the effect of the rocket on "pushing air out of the way" does not have time to get far ahead of the rocket and this drops further behind as you move radially away from the rocket.
In fact the 'wall' in your question is the boundary of this region of influence.
As the leading bit of neither rocket in inside the volume effected by the other, neither is significantly effected (at least in terms of net force, vibration/temperature etc is a different game as these don't just effect the leading bits).
answered 7 hours ago
ANoneANone
1,1581 silver badge10 bronze badges
$endgroup$
add a comment |
$begingroup$
There is likely minimal effect.
At rocket speeds, there is very little effect of shear stress, the only significant effect is particles hitting the leading surface of the rocket.
Also due to how fast hey are going, the effect of the rocket on "pushing air out of the way" does not have time to get far ahead of the rocket and this drops further behind as you move radially away from the rocket.
In fact the 'wall' in your question is the boundary of this region of influence.
As the leading bit of neither rocket in inside the volume effected by the other, neither is significantly effected (at least in terms of net force, vibration/temperature etc is a different game as these don't just effect the leading bits).
answered 7 hours ago
ANoneANone
1,1581 silver badge10 bronze badges
$endgroup$
add a comment |
$begingroup$
There is likely minimal effect.
At rocket speeds, there is very little effect of shear stress, the only significant effect is particles hitting the leading surface of the rocket.
Also due to how fast hey are going, the effect of the rocket on "pushing air out of the way" does not have time to get far ahead of the rocket and this drops further behind as you move radially away from the rocket.
In fact the 'wall' in your question is the boundary of this region of influence.
As the leading bit of neither rocket in inside the volume effected by the other, neither is significantly effected (at least in terms of net force, vibration/temperature etc is a different game as these don't just effect the leading bits).
answered 7 hours ago
ANoneANone
1,1581 silver badge10 bronze badges
$endgroup$
There is likely minimal effect.
At rocket speeds, there is very little effect of shear stress, the only significant effect is particles hitting the leading surface of the rocket.
Also due to how fast hey are going, the effect of the rocket on "pushing air out of the way" does not have time to get far ahead of the rocket and this drops further behind as you move radially away from the rocket.
In fact the 'wall' in your question is the boundary of this region of influence.
As the leading bit of neither rocket in inside the volume effected by the other, neither is significantly effected (at least in terms of net force, vibration/temperature etc is a different game as these don't just effect the leading bits).
answered 7 hours ago
ANoneANone
1,1581 silver badge10 bronze badges
answered 7 hours ago
ANoneANone
1,1581 silver badge10 bronze badges
answered 7 hours ago
ANoneANone
1,1581 silver badge10 bronze badges
answered 7 hours ago
ANoneANone
1,1581 silver badge10 bronze badges
1,1581 silver badge10 bronze badges
add a comment |
add a comment |
$begingroup$
If the boosters were closer together, like at separation, there is a complex interplay of shockwaves that produces lots of turbulence. If the vehicles stay in each other’s turbulence, it will need to be corrected for by the guidance system, probably using up more RCS fuel. These boosters are far enough apart during descent that they are outside of each other’s shockwave.
The Falcon Heavy boosters are detached from the core with a pneumatic ejection system in order to have them out of the way quickly.
answered 1 hour ago
CourageousPotatoCourageousPotato
6931 silver badge9 bronze badges
$endgroup$
add a comment |
$begingroup$
If the boosters were closer together, like at separation, there is a complex interplay of shockwaves that produces lots of turbulence. If the vehicles stay in each other’s turbulence, it will need to be corrected for by the guidance system, probably using up more RCS fuel. These boosters are far enough apart during descent that they are outside of each other’s shockwave.
The Falcon Heavy boosters are detached from the core with a pneumatic ejection system in order to have them out of the way quickly.
answered 1 hour ago
CourageousPotatoCourageousPotato
6931 silver badge9 bronze badges
$endgroup$
add a comment |
$begingroup$
If the boosters were closer together, like at separation, there is a complex interplay of shockwaves that produces lots of turbulence. If the vehicles stay in each other’s turbulence, it will need to be corrected for by the guidance system, probably using up more RCS fuel. These boosters are far enough apart during descent that they are outside of each other’s shockwave.
The Falcon Heavy boosters are detached from the core with a pneumatic ejection system in order to have them out of the way quickly.
answered 1 hour ago
CourageousPotatoCourageousPotato
6931 silver badge9 bronze badges
$endgroup$
If the boosters were closer together, like at separation, there is a complex interplay of shockwaves that produces lots of turbulence. If the vehicles stay in each other’s turbulence, it will need to be corrected for by the guidance system, probably using up more RCS fuel. These boosters are far enough apart during descent that they are outside of each other’s shockwave.
The Falcon Heavy boosters are detached from the core with a pneumatic ejection system in order to have them out of the way quickly.
answered 1 hour ago
CourageousPotatoCourageousPotato
6931 silver badge9 bronze badges
answered 1 hour ago
CourageousPotatoCourageousPotato
6931 silver badge9 bronze badges
answered 1 hour ago
CourageousPotatoCourageousPotato
6931 silver badge9 bronze badges
answered 1 hour ago
CourageousPotatoCourageousPotato
6931 silver badge9 bronze badges
6931 silver badge9 bronze badges
add a comment |
add a comment |
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