CZ-11 Space Launch Vehicle
China's first launch vehicle using solid fuel would improve China's ability to loft military satellites on short notice thanks to its solid fuel, is due to fly under the designation Long March 11. China's first solid-fuel rocket Long March-11 is expected to make its first launch before 2016, a senior official of the rocket's designing institute Xinhua reported 02 March 2013. Liang Xiaohong, deputy head of the China Academy of Launch Vehicle Technology, said the rocket will be easy to operate and cost-efficient to launch. It can remain in storage for long period and reliably launch on short notice.
"The development of the Long March-11 will greatly improve China's capabilities to rapidly enter the space and meet the emergency launching demand in case of disasters and emergencies," he told Xinhua on March 04, 2013. The Long March-11 rocket system consists of a solid-fuel rocket and a launching support system. It will apply China's largest solid-fuel rocket engine, he said. China has made more than 160 launching of liquid-fuel rockets successfully but is yet to make breakthrough on the development of the solid-fuel rockets.
The carrier rocket will be easy to operate and cost-efficient to launch, and it can be stored for long periods to launch at short notice. "If a major earthquake - like the one that rocked Wenchuan of Sichuan province in 2008 - strikes again, we will be able to quickly send satellites into space that can take photos of the devastated area and help with rescue work," Liang said.
Liang expects the next generation of carrier rockets will operate together with earlier models to serve space missions for the next 10 to 20 years. "A new launch vehicle will not be fully reliable until it carries out at least 10 missions where hidden problems can be exposed and fixed. Sometimes, even after a model has carried out many missions, deeper technical problems will not emerge until it encounters special situations in space," he said.
Long March 11 is 20.8 meters long, has a diameter of 2 m and a liftoff weight of 58 metric tons. It is capable of sending payloads of 700 kilograms to a low-Earth orbit or 400 kg to a Sun-synchronous orbit 700 kilometers above the ground.
Its first flight was in September 2015 at the Jiuquan center when it lifted four satellites to a Sun-synchronous orbit. The second flight took place in November 2016 at the same center, sending an X-ray pulsar navigation satellite and four small experimental satellites into orbit.
China launched a Long March 11 carrier rocket on 19 January 2018 to send six satellites into space, according to the China Academy of Launch Vehicle Technology. The mission marked the first time that a Chinese solid-propellant rocket has been used to service a foreign client, the academy, which developed and built the rocket. The Long March 11 blasted off at Jiuquan Satellite Launch Center in northwestern China at 12: 12 pm and later put six small satellites — two Earth-observation satellites made by a State-owned firm, three experimental satellites from Chinese private companies as well as an unidentified one from a Canadian company — into orbit. This was the third mission of Long March 11 and the 264th of the Long March family, according to the academy.
Sea launching requires much in the regard of carrier rockets capacity. For instance, the trial launches have to be simple as well as direct and suitable ways to control and launch the satellites have to be adopted due to sea turbulence and the flow of heat. The Long March 11, a solid fuel rocket capable of fast speeds and high flexibility, can satisfying all the sea launch demands. Before, Russia, the US, Ukraine and Norway invested in a sea launch joint venture which hasn’t carried out any launch service since 2014 for many reasons. Broadly speaking, the mission of the Long March 11 will be to realize continuation of sea launch.
In November 2016 Popular Science reported of this transporter at the Zhuhai 2016 Airshow "While Chinese space launch rockets at previous Zhuhai shows had to rely on civilian trailer trucks, the LM-6 gets a TEL (transporter erector launcher) vehicle that's also used by the heavy DF-41 ICBM. The 103-ton LM-6 space launch rocket, which can launch a 1-ton payload to 435-mile orbit, first flew in September 2015. It's also land mobile, with a model at Zhuhai 2016 showing off a transport erect launch (TEL) vehicle that resembles that for the DF-41 ICBM (though its kerosene/liquid oxygen engine means that the LM-6 could not stay deployed out in the field for long)." The Long March 6 rocket has a 3.35 meter diameter first stage and 2.25 meter diameter second stage carried about 15 tonnes of propellant. The 29.3 meter tall rocket is capable of lifting more than 1,000 kg of payload into a 700 km sun synchronous orbit. The TEL PopSci saw at Zhuhai was unmarked, and looked nothing like the model of the CZ-6 TEL that is sold on e-Bay. The Long March 11 rocket was developed by China Aerospace Science and Technology Corporation's China Academy of Launch Vehicle Technology (First Institute of Aerospace) and codenamed LM-11 or CZ-11. It is a Class 4 solid fuel carrier rocket and is mainly used to respond to emergencies. Micro-satellites, such as natural disasters, even launch satellites when the satellites are attacked by the enemy. The Long March 11 launch vehicle completed its first launch mission at the Jiuquan Satellite Launch Center on September 25, 2015, and successfully delivered the Pujiang No. 1 and three other tiny satellites into space. The Long March 11 Rocket has the advantages of low cost, high efficiency and speed, and all-weather launch. It does not have much requirements for the launch site, but it can also be used for mobile launch. If the special transport chassis (TEL) is integrated for transport, vertical erection and launch integration, its launch preparation The time will be shorter and it will greatly increase the response speed.
The 10-axis special chassis will be developed by Taian Aerospace, a subsidiary of Aerospace Science and Technology. The high-powered heavy-duty, super-heavy chassis developed by Taian will be used as the chassis of the Hongqi series and the Dongfeng 15, Dongfeng 26 ballistic missile chassis. Compared with its subsidiary Wanshan Special Vehicle, a subsidiary of China’s CASIC, the Taian Special Vehicle has the technical background of the Belarusian Minsk Traction Vehicle Factory (MZKT), but the autonomy of the Taian Special Vehicle is even greater. It combines the advanced technology of Europe and America with the introduction of Minsk's technology, especially the standard airbag suspension of the whole series, instead of Wanshan inheriting MZKT's double wishbone independent suspension, the airbag suspension can reduce the bumps during driving, especially in complex terrain, it can effectively alleviate fatigue of long-distance maneuvers.
China successfully launched a rocket from a mobile launch platform in the Yellow Sea off Shandong Province on 05 June 2019, sending two technology experiment satellites and five commercial satellites into space. A Long March-11 solid propellant carrier rocket blasted off at 12:06 p.m. from the mobile platform. It is China's first space launch from a sea-based platform and the 306th mission of the Long March carrier rocket series.
The rocket is also named "CZ-11 WEY" under an agreement between the China Academy of Launch Vehicle Technology, China Space Foundation and a Chinese automobile producer. Launching a carrier rocket from an ocean-based platform has many advantages over a land launch. The closer to the equator a rocket launch can get, the greater the speed boost it will receive. It reduces the amount of energy required to get into space and means that less fuel is required.
The launch site is flexible and falling rocket remains pose less danger. Using civilian ships to launch rockets at sea would lower launch costs and give it a commercial edge. The seaborne launch technology will meet the growing launch demand of low inclination satellites and help China provide launch services for countries participating in the Belt and Road Initiative, according to experts.
The two satellites, developed by China Academy of Space Technology, are expected to step up all-weather monitoring of ocean wind fields and improve typhoon monitoring and accuracy of the weather forecast in China. Among the five commercial satellites, the two satellites, developed by China Electronics Technology Group Corporation, are China's first small satellite system based on Ka-band.
The Long March-11, developed by China Academy of Launch Vehicle Technology, is the only rocket using solid propellants among China's new generation carrier rockets. It is mainly used to carry small satellites and can take multiple satellites into orbit at the same time.
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