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Does the Long March-11 increase its thrust after clearing the launch tower?
How does a launch vehicle control its trajectory during the first stage?What is this red gas at the exhaust of the Long March 3B rocket during liftoff?How long is the “flight time” between rocket launch and arrival at the ISS?Why wasn't the space shuttle fully Liquid fueled?How long does it take to chill the LOX and RP1 for Falcon 9 V1.1 Full Thrust?What's falling off the Shenzhou/Long March stack?how long does it take to have an emergency crewed space launch?First launch of Long March-5 using 4 RP-1/LOX boosters. First use of RP-1/LOX LRBs?Was there ever an incident of collision between SRBs after SRB jettison, during launch of the Space Shuttle?Are side boosters sometimes angled even if they are symmetrically arranged?
$begingroup$
The NASA Spaceflight article China conducts first Sea Launch mission with Long March 11 launch of seven satellites links to the YouTube video China’s first sea launch: Long March-11 launches from a ship at sea.
The article says:
The Long March-11 (Chang Zheng-11) is a small solid-fueled quick-reaction launch vehicle developed by the China Academy of Launch Vehicle Technology (CALT) with the goal to provide an easy to operate quick-reaction launch vehicle, that can remain in storage for long period and to provide a reliable launch on short notice.
LM-11 is a four stage solid-fueled launch vehicle equipped with a reaction control system on the fourth stage.
The vehicle has a length of 20.8 meters, 2.0 meters in diameter and a liftoff mass of 58,000 kg. At launch it develops 120.000 kg/f, launching a 350 kg cargo into a 700 km SSO. The CZ-11 can use two types of fairing with 1.6 meters or 2.0 meters.
Question: The first half-dozen seconds launch looks a little unusual to me. Once it clears the tower the rocket appears to hesitate slightly, then a sudden bright burst of exhaust happens and at the same time it looks like it starts accelerating much more quickly.
Am I imagining things, or does the Long March-11 increase its thrust after clearing the launch tower?
launch srb china long-march
asked 8 hours ago
uhohuhoh
44.2k21172567
$endgroup$
add a comment |
$begingroup$
The NASA Spaceflight article China conducts first Sea Launch mission with Long March 11 launch of seven satellites links to the YouTube video China’s first sea launch: Long March-11 launches from a ship at sea.
The article says:
The Long March-11 (Chang Zheng-11) is a small solid-fueled quick-reaction launch vehicle developed by the China Academy of Launch Vehicle Technology (CALT) with the goal to provide an easy to operate quick-reaction launch vehicle, that can remain in storage for long period and to provide a reliable launch on short notice.
LM-11 is a four stage solid-fueled launch vehicle equipped with a reaction control system on the fourth stage.
The vehicle has a length of 20.8 meters, 2.0 meters in diameter and a liftoff mass of 58,000 kg. At launch it develops 120.000 kg/f, launching a 350 kg cargo into a 700 km SSO. The CZ-11 can use two types of fairing with 1.6 meters or 2.0 meters.
Question: The first half-dozen seconds launch looks a little unusual to me. Once it clears the tower the rocket appears to hesitate slightly, then a sudden bright burst of exhaust happens and at the same time it looks like it starts accelerating much more quickly.
Am I imagining things, or does the Long March-11 increase its thrust after clearing the launch tower?
launch srb china long-march
asked 8 hours ago
uhohuhoh
44.2k21172567
$endgroup$
add a comment |
$begingroup$
The NASA Spaceflight article China conducts first Sea Launch mission with Long March 11 launch of seven satellites links to the YouTube video China’s first sea launch: Long March-11 launches from a ship at sea.
The article says:
The Long March-11 (Chang Zheng-11) is a small solid-fueled quick-reaction launch vehicle developed by the China Academy of Launch Vehicle Technology (CALT) with the goal to provide an easy to operate quick-reaction launch vehicle, that can remain in storage for long period and to provide a reliable launch on short notice.
LM-11 is a four stage solid-fueled launch vehicle equipped with a reaction control system on the fourth stage.
The vehicle has a length of 20.8 meters, 2.0 meters in diameter and a liftoff mass of 58,000 kg. At launch it develops 120.000 kg/f, launching a 350 kg cargo into a 700 km SSO. The CZ-11 can use two types of fairing with 1.6 meters or 2.0 meters.
Question: The first half-dozen seconds launch looks a little unusual to me. Once it clears the tower the rocket appears to hesitate slightly, then a sudden bright burst of exhaust happens and at the same time it looks like it starts accelerating much more quickly.
Am I imagining things, or does the Long March-11 increase its thrust after clearing the launch tower?
launch srb china long-march
asked 8 hours ago
uhohuhoh
44.2k21172567
$endgroup$
The NASA Spaceflight article China conducts first Sea Launch mission with Long March 11 launch of seven satellites links to the YouTube video China’s first sea launch: Long March-11 launches from a ship at sea.
The article says:
The Long March-11 (Chang Zheng-11) is a small solid-fueled quick-reaction launch vehicle developed by the China Academy of Launch Vehicle Technology (CALT) with the goal to provide an easy to operate quick-reaction launch vehicle, that can remain in storage for long period and to provide a reliable launch on short notice.
LM-11 is a four stage solid-fueled launch vehicle equipped with a reaction control system on the fourth stage.
The vehicle has a length of 20.8 meters, 2.0 meters in diameter and a liftoff mass of 58,000 kg. At launch it develops 120.000 kg/f, launching a 350 kg cargo into a 700 km SSO. The CZ-11 can use two types of fairing with 1.6 meters or 2.0 meters.
Question: The first half-dozen seconds launch looks a little unusual to me. Once it clears the tower the rocket appears to hesitate slightly, then a sudden bright burst of exhaust happens and at the same time it looks like it starts accelerating much more quickly.
Am I imagining things, or does the Long March-11 increase its thrust after clearing the launch tower?
launch srb china long-march
launch srb china long-march
asked 8 hours ago
uhohuhoh
44.2k21172567
asked 8 hours ago
uhohuhoh
44.2k21172567
asked 8 hours ago
uhohuhoh
44.2k21172567
asked 8 hours ago
uhohuhoh
44.2k21172567
asked 8 hours ago
uhohuhoh
44.2k21172567
44.2k21172567
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
Long March 11 is a cold-launched rocket, based on a concept popular with military rockets. A gas charge is generated by the launch platform (often using a chemical gas generator) to eject the rocket from the launch platform before engine ignition. This saves the launch platform from having to manage hot exhaust gases, and reduces wear and tear on the launch platform.
So, short answer - yes, the thrust increases from zero to (LM11 liftoff thrust) in the moments after launch.
answered 7 hours ago
SaibooguSaiboogu
5,0192534
$endgroup$
1
$begingroup$
Right, it's pretty evident that it's launched from a barrel-like tube. It also looks like something falls off the bottom of the rocket immediately before engine ignition. That could be a piston used for the initial ejection.
$endgroup$
– TooTea
7 hours ago
$begingroup$
It doesn't seem to have any thrust when it's launched.
$endgroup$
– GdD
3 hours 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
$begingroup$
Long March 11 is a cold-launched rocket, based on a concept popular with military rockets. A gas charge is generated by the launch platform (often using a chemical gas generator) to eject the rocket from the launch platform before engine ignition. This saves the launch platform from having to manage hot exhaust gases, and reduces wear and tear on the launch platform.
So, short answer - yes, the thrust increases from zero to (LM11 liftoff thrust) in the moments after launch.
answered 7 hours ago
SaibooguSaiboogu
5,0192534
$endgroup$
1
$begingroup$
Right, it's pretty evident that it's launched from a barrel-like tube. It also looks like something falls off the bottom of the rocket immediately before engine ignition. That could be a piston used for the initial ejection.
$endgroup$
– TooTea
7 hours ago
$begingroup$
It doesn't seem to have any thrust when it's launched.
$endgroup$
– GdD
3 hours ago
add a comment |
$begingroup$
Long March 11 is a cold-launched rocket, based on a concept popular with military rockets. A gas charge is generated by the launch platform (often using a chemical gas generator) to eject the rocket from the launch platform before engine ignition. This saves the launch platform from having to manage hot exhaust gases, and reduces wear and tear on the launch platform.
So, short answer - yes, the thrust increases from zero to (LM11 liftoff thrust) in the moments after launch.
answered 7 hours ago
SaibooguSaiboogu
5,0192534
$endgroup$
1
$begingroup$
Right, it's pretty evident that it's launched from a barrel-like tube. It also looks like something falls off the bottom of the rocket immediately before engine ignition. That could be a piston used for the initial ejection.
$endgroup$
– TooTea
7 hours ago
$begingroup$
It doesn't seem to have any thrust when it's launched.
$endgroup$
– GdD
3 hours ago
add a comment |
$begingroup$
Long March 11 is a cold-launched rocket, based on a concept popular with military rockets. A gas charge is generated by the launch platform (often using a chemical gas generator) to eject the rocket from the launch platform before engine ignition. This saves the launch platform from having to manage hot exhaust gases, and reduces wear and tear on the launch platform.
So, short answer - yes, the thrust increases from zero to (LM11 liftoff thrust) in the moments after launch.
answered 7 hours ago
SaibooguSaiboogu
5,0192534
$endgroup$
Long March 11 is a cold-launched rocket, based on a concept popular with military rockets. A gas charge is generated by the launch platform (often using a chemical gas generator) to eject the rocket from the launch platform before engine ignition. This saves the launch platform from having to manage hot exhaust gases, and reduces wear and tear on the launch platform.
So, short answer - yes, the thrust increases from zero to (LM11 liftoff thrust) in the moments after launch.
answered 7 hours ago
SaibooguSaiboogu
5,0192534
edited 7 hours ago
answered 7 hours ago
SaibooguSaiboogu
5,0192534
answered 7 hours ago
SaibooguSaiboogu
5,0192534
answered 7 hours ago
SaibooguSaiboogu
5,0192534
5,0192534
1
$begingroup$
Right, it's pretty evident that it's launched from a barrel-like tube. It also looks like something falls off the bottom of the rocket immediately before engine ignition. That could be a piston used for the initial ejection.
$endgroup$
– TooTea
7 hours ago
$begingroup$
It doesn't seem to have any thrust when it's launched.
$endgroup$
– GdD
3 hours ago
add a comment |
1
$begingroup$
Right, it's pretty evident that it's launched from a barrel-like tube. It also looks like something falls off the bottom of the rocket immediately before engine ignition. That could be a piston used for the initial ejection.
$endgroup$
– TooTea
7 hours ago
$begingroup$
It doesn't seem to have any thrust when it's launched.
$endgroup$
– GdD
3 hours ago
1
1
$begingroup$
Right, it's pretty evident that it's launched from a barrel-like tube. It also looks like something falls off the bottom of the rocket immediately before engine ignition. That could be a piston used for the initial ejection.
$endgroup$
– TooTea
7 hours ago
$begingroup$
Right, it's pretty evident that it's launched from a barrel-like tube. It also looks like something falls off the bottom of the rocket immediately before engine ignition. That could be a piston used for the initial ejection.
$endgroup$
– TooTea
7 hours ago
$begingroup$
It doesn't seem to have any thrust when it's launched.
$endgroup$
– GdD
3 hours ago
$begingroup$
It doesn't seem to have any thrust when it's launched.
$endgroup$
– GdD
3 hours ago
add a comment |
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