Break Away Valves for Launch The Next CEO of Stack OverflowWhy rockets are not tossed up before launchWhat rocket uses the largest percentage of Fuel/Oxidizer before liftoff?Could escape velocity be achieved in the atmosphere?How much fuel would one need to launch a 1kg object from 100,000 feet?How much fuel was used for a Space Shuttle launch?What is a typical energy demand and carbon footprint of a space launch?How do they get up-close views of far away spacecraft after launch?How far away can one see a NASA rocket launch?Good source for launch videosIs the pressurization of propellant tanks necessary for structural integrity?Odor of a rocket launch?Why rockets are not tossed up before launchReaction Drive Launch Catapult
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Break Away Valves for Launch
The Next CEO of Stack OverflowWhy rockets are not tossed up before launchWhat rocket uses the largest percentage of Fuel/Oxidizer before liftoff?Could escape velocity be achieved in the atmosphere?How much fuel would one need to launch a 1kg object from 100,000 feet?How much fuel was used for a Space Shuttle launch?What is a typical energy demand and carbon footprint of a space launch?How do they get up-close views of far away spacecraft after launch?How far away can one see a NASA rocket launch?Good source for launch videosIs the pressurization of propellant tanks necessary for structural integrity?Odor of a rocket launch?Why rockets are not tossed up before launchReaction Drive Launch Catapult
$begingroup$
I forgot to hang up the fuel pump and broke it off and costed around 80 dollars to replace. While there I wandered could this be adapted to a rocket in some way?
How much fuel capacity would be saved if the fuel was fed to the rocket to keep it topped off until it has fully left the launch tower? The length of the fuel line and break away valve would be the height of the launch tower.
Could it be fed through an extended tower with a fuel line that travels aside the rocket not to burden the rocket with the weight of the fuel line or cause a whip in the fuel line?
https://sputniknews.com/science/201812291071085215-soyuz-launch-russia-uk-satellite/
launch fuel engines design-alternative
asked 4 hours ago
MuzeMuze
1,3291264
$endgroup$
add a comment |
$begingroup$
I forgot to hang up the fuel pump and broke it off and costed around 80 dollars to replace. While there I wandered could this be adapted to a rocket in some way?
How much fuel capacity would be saved if the fuel was fed to the rocket to keep it topped off until it has fully left the launch tower? The length of the fuel line and break away valve would be the height of the launch tower.
Could it be fed through an extended tower with a fuel line that travels aside the rocket not to burden the rocket with the weight of the fuel line or cause a whip in the fuel line?
https://sputniknews.com/science/201812291071085215-soyuz-launch-russia-uk-satellite/
launch fuel engines design-alternative
asked 4 hours ago
MuzeMuze
1,3291264
$endgroup$
add a comment |
$begingroup$
I forgot to hang up the fuel pump and broke it off and costed around 80 dollars to replace. While there I wandered could this be adapted to a rocket in some way?
How much fuel capacity would be saved if the fuel was fed to the rocket to keep it topped off until it has fully left the launch tower? The length of the fuel line and break away valve would be the height of the launch tower.
Could it be fed through an extended tower with a fuel line that travels aside the rocket not to burden the rocket with the weight of the fuel line or cause a whip in the fuel line?
https://sputniknews.com/science/201812291071085215-soyuz-launch-russia-uk-satellite/
launch fuel engines design-alternative
asked 4 hours ago
MuzeMuze
1,3291264
$endgroup$
I forgot to hang up the fuel pump and broke it off and costed around 80 dollars to replace. While there I wandered could this be adapted to a rocket in some way?
How much fuel capacity would be saved if the fuel was fed to the rocket to keep it topped off until it has fully left the launch tower? The length of the fuel line and break away valve would be the height of the launch tower.
Could it be fed through an extended tower with a fuel line that travels aside the rocket not to burden the rocket with the weight of the fuel line or cause a whip in the fuel line?
https://sputniknews.com/science/201812291071085215-soyuz-launch-russia-uk-satellite/
launch fuel engines design-alternative
launch fuel engines design-alternative
asked 4 hours ago
MuzeMuze
1,3291264
asked 4 hours ago
MuzeMuze
1,3291264
edited 3 hours ago
Muze
asked 4 hours ago
MuzeMuze
1,3291264
asked 4 hours ago
MuzeMuze
1,3291264
asked 4 hours ago
MuzeMuze
1,3291264
1,3291264
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
Theoretically yes. However there are concerns:
1) Propellant load is dangerous under the best circumstances. Add in all the vibration loads of an "on" rocket and you have a doozie.
2) Most rockets already have umbilicals that disconnect slightly after liftoff. The recent Rocketlab launch video has a good angle of this
3) It's a bit of added weight and complexity.
These are all surmountable, but then what would you be gaining? I'm sure someone can do a calculation (slightly related to this question) but I suspect it's a negligible amount of payload/mass gain.
answered 3 hours ago
randomUsernamerandomUsername
33118
$endgroup$
$begingroup$
If you think about it it is saved weight need less fuel storage.
$endgroup$
– Muze
2 hours ago
$begingroup$
Could you clarify?
$endgroup$
– randomUsername
2 hours ago
$begingroup$
You can off set the onboard fuel needed for the mission saving weight for heavier payload.
$endgroup$
– Muze
2 hours ago
$begingroup$
@Muze Let's do some Fermi estimation. It takes a second for the rocket to reach the altitude shown in your diagram. The first stage operates for a hundred seconds. So 1% of the propellant mass could be saved by massively increasing the complexity and danger of launch.
$endgroup$
– Jacob Krall
31 mins ago
$begingroup$
See also this quote
$endgroup$
– Jacob Krall
28 mins ago
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
Theoretically yes. However there are concerns:
1) Propellant load is dangerous under the best circumstances. Add in all the vibration loads of an "on" rocket and you have a doozie.
2) Most rockets already have umbilicals that disconnect slightly after liftoff. The recent Rocketlab launch video has a good angle of this
3) It's a bit of added weight and complexity.
These are all surmountable, but then what would you be gaining? I'm sure someone can do a calculation (slightly related to this question) but I suspect it's a negligible amount of payload/mass gain.
answered 3 hours ago
randomUsernamerandomUsername
33118
$endgroup$
$begingroup$
If you think about it it is saved weight need less fuel storage.
$endgroup$
– Muze
2 hours ago
$begingroup$
Could you clarify?
$endgroup$
– randomUsername
2 hours ago
$begingroup$
You can off set the onboard fuel needed for the mission saving weight for heavier payload.
$endgroup$
– Muze
2 hours ago
$begingroup$
@Muze Let's do some Fermi estimation. It takes a second for the rocket to reach the altitude shown in your diagram. The first stage operates for a hundred seconds. So 1% of the propellant mass could be saved by massively increasing the complexity and danger of launch.
$endgroup$
– Jacob Krall
31 mins ago
$begingroup$
See also this quote
$endgroup$
– Jacob Krall
28 mins ago
add a comment |
$begingroup$
Theoretically yes. However there are concerns:
1) Propellant load is dangerous under the best circumstances. Add in all the vibration loads of an "on" rocket and you have a doozie.
2) Most rockets already have umbilicals that disconnect slightly after liftoff. The recent Rocketlab launch video has a good angle of this
3) It's a bit of added weight and complexity.
These are all surmountable, but then what would you be gaining? I'm sure someone can do a calculation (slightly related to this question) but I suspect it's a negligible amount of payload/mass gain.
answered 3 hours ago
randomUsernamerandomUsername
33118
$endgroup$
$begingroup$
If you think about it it is saved weight need less fuel storage.
$endgroup$
– Muze
2 hours ago
$begingroup$
Could you clarify?
$endgroup$
– randomUsername
2 hours ago
$begingroup$
You can off set the onboard fuel needed for the mission saving weight for heavier payload.
$endgroup$
– Muze
2 hours ago
$begingroup$
@Muze Let's do some Fermi estimation. It takes a second for the rocket to reach the altitude shown in your diagram. The first stage operates for a hundred seconds. So 1% of the propellant mass could be saved by massively increasing the complexity and danger of launch.
$endgroup$
– Jacob Krall
31 mins ago
$begingroup$
See also this quote
$endgroup$
– Jacob Krall
28 mins ago
add a comment |
$begingroup$
Theoretically yes. However there are concerns:
1) Propellant load is dangerous under the best circumstances. Add in all the vibration loads of an "on" rocket and you have a doozie.
2) Most rockets already have umbilicals that disconnect slightly after liftoff. The recent Rocketlab launch video has a good angle of this
3) It's a bit of added weight and complexity.
These are all surmountable, but then what would you be gaining? I'm sure someone can do a calculation (slightly related to this question) but I suspect it's a negligible amount of payload/mass gain.
answered 3 hours ago
randomUsernamerandomUsername
33118
$endgroup$
Theoretically yes. However there are concerns:
1) Propellant load is dangerous under the best circumstances. Add in all the vibration loads of an "on" rocket and you have a doozie.
2) Most rockets already have umbilicals that disconnect slightly after liftoff. The recent Rocketlab launch video has a good angle of this
3) It's a bit of added weight and complexity.
These are all surmountable, but then what would you be gaining? I'm sure someone can do a calculation (slightly related to this question) but I suspect it's a negligible amount of payload/mass gain.
answered 3 hours ago
randomUsernamerandomUsername
33118
answered 3 hours ago
randomUsernamerandomUsername
33118
answered 3 hours ago
randomUsernamerandomUsername
33118
answered 3 hours ago
randomUsernamerandomUsername
33118
33118
$begingroup$
If you think about it it is saved weight need less fuel storage.
$endgroup$
– Muze
2 hours ago
$begingroup$
Could you clarify?
$endgroup$
– randomUsername
2 hours ago
$begingroup$
You can off set the onboard fuel needed for the mission saving weight for heavier payload.
$endgroup$
– Muze
2 hours ago
$begingroup$
@Muze Let's do some Fermi estimation. It takes a second for the rocket to reach the altitude shown in your diagram. The first stage operates for a hundred seconds. So 1% of the propellant mass could be saved by massively increasing the complexity and danger of launch.
$endgroup$
– Jacob Krall
31 mins ago
$begingroup$
See also this quote
$endgroup$
– Jacob Krall
28 mins ago
add a comment |
$begingroup$
If you think about it it is saved weight need less fuel storage.
$endgroup$
– Muze
2 hours ago
$begingroup$
Could you clarify?
$endgroup$
– randomUsername
2 hours ago
$begingroup$
You can off set the onboard fuel needed for the mission saving weight for heavier payload.
$endgroup$
– Muze
2 hours ago
$begingroup$
@Muze Let's do some Fermi estimation. It takes a second for the rocket to reach the altitude shown in your diagram. The first stage operates for a hundred seconds. So 1% of the propellant mass could be saved by massively increasing the complexity and danger of launch.
$endgroup$
– Jacob Krall
31 mins ago
$begingroup$
See also this quote
$endgroup$
– Jacob Krall
28 mins ago
$begingroup$
If you think about it it is saved weight need less fuel storage.
$endgroup$
– Muze
2 hours ago
$begingroup$
If you think about it it is saved weight need less fuel storage.
$endgroup$
– Muze
2 hours ago
$begingroup$
Could you clarify?
$endgroup$
– randomUsername
2 hours ago
$begingroup$
Could you clarify?
$endgroup$
– randomUsername
2 hours ago
$begingroup$
You can off set the onboard fuel needed for the mission saving weight for heavier payload.
$endgroup$
– Muze
2 hours ago
$begingroup$
You can off set the onboard fuel needed for the mission saving weight for heavier payload.
$endgroup$
– Muze
2 hours ago
$begingroup$
@Muze Let's do some Fermi estimation. It takes a second for the rocket to reach the altitude shown in your diagram. The first stage operates for a hundred seconds. So 1% of the propellant mass could be saved by massively increasing the complexity and danger of launch.
$endgroup$
– Jacob Krall
31 mins ago
$begingroup$
@Muze Let's do some Fermi estimation. It takes a second for the rocket to reach the altitude shown in your diagram. The first stage operates for a hundred seconds. So 1% of the propellant mass could be saved by massively increasing the complexity and danger of launch.
$endgroup$
– Jacob Krall
31 mins ago
$begingroup$
See also this quote
$endgroup$
– Jacob Krall
28 mins ago
$begingroup$
See also this quote
$endgroup$
– Jacob Krall
28 mins ago
add a comment |
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