Live Stream on YouTube: Long March 5 launch 11/3/2016 7AM

Martian

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China's new Long March 5 rocket is equivalent to the US Delta IV and European Ariane 5. Watch the liftoff live on the YouTube stream below!

 

Martian

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I have five observations on China's successful launch of the Long March 5.

1. Extensive testing of China's Long March 5 components lead to a successful launch. Space X Falcon 9 could learn a lesson from China's space program. Testing is of paramount importance.

2. As the Long March 5 ascended, the computer graphics showed four radar tracking stations. Two radars on Hainan Island. A third radar on a South China Sea island (possibly Xisha). A fourth radar on mainland China.

3. As the Long March 5 passed beyond the horizon, tracking switched to the Yuanwang 7 tracking ship on the Pacific Ocean.

4. The blue line in the computer graphic is the projection onto the Earth of the Long March 5 flight path above the Earth's surface.

5. If you can read Mandarin (which is Chinese), the computer graphics showed the Long March 5 flying past Saipan, Guam, and the Marshall Islands.
 

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China conducts Long March 5 maiden launch
China has conducted the maiden launch of its Long March-5 (Chang Zhen-5) rocket on Thursday, after years of intense development to create a launch vehicle capable of orbiting heavy payload to geosynchronous and low Earth orbit. The launch occurred at 12:43 UTC on Thursday after several holds.
Long March 5 Debut:
The launch of Long March-5/YZ-2 (Y1) took place at the Wenchang Space Launch Centre’s LC101 dedicated Launch Complex.
This maiden launch carried the experimental Shijian-17 complex to the geostationary orbit. The new satellite will conduct experiments using ion propulsion for station keeping.
The rocket is a key element of China’s advancement to being able to loft heavier payloads to Geostationary Transfer Orbit (GTO) or to Low Earth Orbit (LEO). Per this goal, China approved the development of the Long March-5 family of launch vehicles on June 2004.
This new launcher family is aiming to meet the needs of the future launch service market and will be used to launch the modules for a large-scale space station, help maintain the development trend of China’s launch vehicle technology, and drive the development of economy and related high-techs in China – with the development of new rocket engines, new welding techniques and upgrade the flight control systems.
The new development program involves a series of launch vehicles rather than one launcher made for a specific mission, to enhance China’s capability of accessing space.
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This effort applies advanced technologies, such as the large diameter core and the powerful thrust engine to increase the launch capacity dramatically, with the goal of launching 25-ton payloads to LEO and 14-ton to GTO; design a series of launch vehicles based on the principle of generalization, serialization and modularization, with the purpose of meeting the needs of launching different payloads; to use non-toxic and non-polluting propellant; and to be low cost, high reliability, and convenient for test and operation.
The Chinese envisioned a modularized concept using two newly developed engines and three standard modules. Originally the plan included three primary classes: 5-meter diameter core variants, a 3.35-meter diameter core variants and a 2.25-meter diameter core configuration set.
The three standard modules were the H5-1 module (5 meter diameter with a length of 31.0 meter and equipped with two 50t LH/LOX engines, having a mass of 175t), the K3-1 module (3.35 meter diameter with a length of 26.3 meter and equipped with two 120t KO/LOX engines, having a mass of 147t) and the K2-1 module (2.25 meter diameter with a length of 25.0 meter and equipped with one 120t KO/LOX engines, having a mass of 69t).
From these initial concepts, the Long March-6 and Long March-7 launch vehicles were developed, while a series of variants were proposed for the heavy launcher.
Using the 5 meter diameter core stage and different combinations of strap-on boosters and an upper stage, six variants were proposed to achieve different payload capacities.
Configuration A would be able to launch 18 t to LEO, while Configuration B and C would be capable of lofting 25 t and 10 t to LEO, respectively. For GTO, the Configuration D would be capable of launching 10 t, while the Configuration E and F would be capable of lofting 14 t and 6 t to GTO, respectively.
Eventually, only two variants were developed: the basic variant two-stage Long March-5 designed for GTO missions, and the single-stage Long March-5B designed for LEO missions. Both variants are fitted with four strap-on boosters of 3.35 m diameter.
The basic variant of the new launcher is a two-stage core vehicle (5 meter diameter) with four strap-on boosters (3.35 meter diameter). The vehicle is capable of launching 14,000 kg to GTO. Total length is 56.97 meter, gross mass of 869 t and lift-off thrust of 10,573 kN.
The inaugural flight was schedule for 2013, but the China Academy of Launch Vehicle Technology (CALT) and the Shanghai Academy of Spaceflight Technology (SAST) would have to endure a long road to the first flight. Facing enormous technical challenges, the development of the YF-100 and YF-77 engines would delay the development of the new launch vehicle family.
The maiden flight of the LM-5 will use two core stages with four strap-on boosters. Total length is 56.97 meters and gross mass is 869,000 kg, developing a lift-off thrust of 10,572 kN.
The first stage length is 31.02 meters, with a 5.00 meter diameter. The first stage is equipped with two YF-77 engines consuming LOX/LH. The first stage has a gross mass of 175,800 kg with an empty mass of 17,800 kg.
The strap-on boosters have a length of 26.28 meters and a 3.25 meter diameter. Each strap-on booster is equipped with two YF-100 engines. Gross mass is 147.000 kg with an empty mass of 12,000 kg. The YF-100 consumes LOX and kerosene.
The second stage is 12.00 meters long, with a 5.00 meter diameter. Is equipped with two YF-75D engines, consuming LOX/LH. The second stage has a gross mass of 26,000 kg with an empty mass of 3,100 kg.
The YF-77 engine, developed by the Academy of Aerospace Launch Propulsion Technology (AALPT) is a high performance and reliability booster designed for the Long March-5 family.
This is the first high-thrust cryogenic engine developed in China, taking a big technological step with respect to previous Chinese cryogenic Oxygen/Hydrogen engine, such as YF-75 which powers the LM-3A/3B’s upper stage. The engine utilizes gas generator cycle with cryogenic LOX/LH2 propellants.
Two YF-77 engines fly on the first stage of the Long-March 5 and each engine provides 700-kN in vacuum at an oxidizer-to-fuel mixture ration (O/F) of 5.5. The YF-77 develops 700 kN at vacuum and 510 kN at sea-level with an Isp of 430 seconds (vacuum) and 310.2 seconds (sea-level). Burn time is 520 seconds.
The YF-100 development began in 2000 at the Academy of Aerospace Liquid Propulsion Technology. The engine was certified by the State Administration of Science, Technology and Industry for National Defence (SASTIND) in May 2012. It is a staged combustion cycle engine developing 1,199.19 kN at sea-level with an Isp of 300 seconds (vacuum values are: thrust 1,339.48 kN; Isp 335 seconds). Burn time is 155 seconds. The YF-100 is also on the CZ-6 launch vehicle.
The YF-75D engine is a LOX/LH2 closed expander cycle engine the is designed to meet the requirements of second stage propulsion of the new generation LM-5 launch vehicle for its performance, reliability, developing cost and schedule.
The YF-75D engine is capable of throttling its mixture ratio and multi-start, so that it will be suited to various missions. It has two turbopumps driven by gaseous hydrogen. They are designed in series and gimbaled with the whole engine. The YF-75D develops 88.26 kN at vacuum with a Isp of 442 seconds. Burn time is 780 seconds.
The YZ-2 (Yuanzheng-2 or “Expedition 2”) is a new upper stage specifically designed for use on the LM-5. It was developed by CALT.
YZ-2 will be used as a “space tug” to push the cargo directly into their intended orbit without the need to use their own propulsion systems. The upper stage is 5.2 m in diameter and weighs 1.800 kg. It has a multiple re-ignition capability and is equipped with precision control systems.
The cargoes orbited by the LM-5 are initially protected by a payload fairing with a 5.2 meter diameter and a 12.5 meter length.
With the first orbital flight taking place on June 2016, Wenchang Space Launch Centre is located in the northeast corner of the Hainan Island on the southern coast of China.
The new launch complex brings a more large versatility that isn’t provided by the other three launch sites. Wenchang provides an increase in performance for the launch vehicles gained from the Earth’s rotational speed because is closer to the Earth equator. This reduces the amount of propellants required for the satellite’s maneuver from the transit orbit to GEO.
The launch vehicle can fly from the launch site to the southeast direction into the South Pacific, avoiding the possibility of rocket debris falling into any populated area.
The center is equipped with two launch complexes. Launch Complex LC101 is used for the Long March-5 launch vehicle family while Launch Complex LC201 is used for the Long March-7 launch vehicle.
Both pads are similar and are equipped with a fixed umbilical tower, underground flame deflector trenches and ducts. Similarly to what happens at the other Chinese launch centers, the umbilical towers have swing arms to allow technicians to access and inspect the launch vehicle and payload.
The launch pads at the new launch complex use a sound suppression system, spraying large volumes of water at the launcher platform and into the flame deflector trenches below to dampen sound waves generated by the rocket engines.
The launch pads are served by two vehicle assembly and integration buildings. Launch Complex LC101 is served by Building 501 while Launch Complex LC201 is served by Building 502.
Each building is 99.4 meters tall permitting the assembly and testing of the launch vehicle in a full, vertical stacked position. This is a new approach to the launch vehicle preparation for flight, because at the other Chinese launch centers the launchers are stacked and tested for flight at the launch platforms.
After being stacked at the vehicle assembly and integration building at the top of a mobile launch platform, this is the rolled to the launch pad.
The journey takes several minutes to cover the 2,800 meters separating the vehicle assembly and integration buildings, and the launch pads. After arriving at the launch pads, the mobile structure is then placed above the flame trench and the necessary umbilical connections between the fixed structures and the mobile platform are established.
 

Indx TechStyle

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@Indx TechStyle Is this rocket a chinese equivalent of GSLV MK3/LVM3 ?? or is it like ULV?
It is at least a generation ahead of GSLV Mk3 or ULV.
It is more like HLV.
But our ones are years away as of now.

We need integration of SCE-200 engine in our rockets ASAP if we want to achieve the same capability.
India will take 4-5 years at best to achieve the capability and obviously a decade if any major failure occurs.

First flight of SCE-200 is in 2018. Just wish best for it.:pray:
http://m.thehindu.com/news/national/mega-launchers-for-isro-soon/article9155342.ece

From official:
http://www.vssc.gov.in/VSSC_V4/index.php/technology/heavy-lift-launch-vehicles


On topic: Congratulations my communist friends.:biggrin2::party:
 

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Ignore my last post, its more powerful heavy lifter than even our under development Heavy version of ULV which happens to have a max payload capacity to GTO of 9000 KG and LEO of >15000KG and this mother can take 14000 KG to GTO and 25000 KG to LEO.
 

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Ignore my last post, its more powerful heavy lifter than even our under development Heavy version of ULV which happens to have a max payload capacity to GTO of 9000 KG and LEO of >15000KG and this mother can take 14000 KG to GTO and 25000 KG to LEO.
It may be world's second most powerful operational rocket after Delta 4 heavy when it gets operational.


For our rockets, besides ULV, there is an Indian Program HLV to develop a series of rockets capability of putting from 10,000 kg to 15,000 kg in GTO and 20,000 to 25,000 in LEO. In Expo of 2017, details will be released probably, I'll post in ISRO thread.;)
 

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Akask kumar

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Ignore my last post, its more powerful heavy lifter than even our under development Heavy version of ULV which happens to have a max payload capacity to GTO of 9000 KG and LEO of >15000KG and this mother can take 14000 KG to GTO and 25000 KG to LEO.
its their requirement as they are destined to make a space station.. we dnt have such requirements at present..

we are at least a decade behind them.. first thing first- we have to make GSLV MK3 operational ASAP(jan 2017)

.. then instead of using liquid Vikas engine we will use semi-cryo engine(SCE-200).. which will transform MK3 into a beast ..(from 4 tonnes to 6 tonnes capability)..

this will happen by 2018 .

then instead of using one cryo-engine we will use two cryo engines(add 2-5 years here).. so the final rocket will have..

first stage - semi cryo..
second stage - cryo
third stage - cryo..
capability(10 + toneed to GTO)..

above is your final HLV..( year 2020 ??) comparable to lang march 5..

PS.. we have developed semicryo engine,but it has yet to undergo several testing
 
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Indx TechStyle

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I am pretty positive that they'll be able to do it and as per the last few lines we might just be able to put 15000 kGs to GTO.
If not completely, they can reach near to it, about 13-14 tonnes.:)
if SCE -200 is in 2018 then what cryogenic engine GSLV MK 3 will carry in january 2017?? i thought the GSLV MK3 jan launch has SCE-200 engine..
I'm talkin of enhanced capacity, 6 tonnes to GTO.
 

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hi .

go to this page ..if you are worried after seeing the CHINA's leap in space & thinking we are lagging way behind.

http://defenceforumindia.com/forum/threads/isro-news-and-updates.33401/page-102

the roadmap of GSLV and its future is discussed. Dnt want to pst the same stuff again and again.

PS.. HLV will be a derivative of GSLV.. and will be completed by 2020..capacity- 15 tonnes to GTO.
PS2.. ULV will look similar to spacex falcon with mulitple engines.. its a different desing concept..(much after 2020)

even if everything goes as per plan, we are 5 years behind the chinese in rocketry..[not a big gap]

I have to respect their space industry.. Good work CHINA.. keep it up and keep the pressure on Indians .. it drives the best out of us.. :india:

@Indx TechStyle
 

Martian

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If you missed the Live Stream of China's Long March 5 liftoff, you can see the replay here:
The successful launch of China's Long March 5 rocket today is important, because the successor to the Long March 5 will have the lift-capability to land a Chinese taikonaut on the Moon.
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China conducts maiden launch of powerful Long March 5 booster | Spaceflight Insider

"The Long March 5 is China’s most powerful launch vehicle with comparable capabilities to Arianespace’s Ariane 5 and United Launch Alliance’s (ULA) Delta IV Heavy boosters. The rocket will be used for a wide spectrum of space missions, including launching commercial satellites, space station modules, as well as deep space probes. Starting in 2017, the rocket is planned to enter regular service. The Tianhe-1 core module of China’s future space station, as well as the Chang’e-4 and Chang’e-5 lunar spacecraft, is among the many missions scheduled for launch atop this booster."
 

Indx TechStyle

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go to this page ..if you are worried after seeing the CHINA's leap in space & thinking we are lagging way behind.
I'm not worried. Nor I'm going to play any d!ck measuring competition with other countries' members.
I have even reported my own troll posts, trying to behave good, done 6000+ messages (almost same number of likes), because, it has been too long on DFI. Now, I wanna become a mod, a Star Ambassador or an Elite Member at least.:D
So, I have become a good boy now.:angel:
Trust me, this page is nothing.:biggrin2:
the roadmap of GSLV and its future is discussed. Dnt want to pst the same stuff again and again.

PS.. HLV will be a derivative of GSLV.. and will be completed by 2020..capacity- 15 tonnes to GTO.
PS2.. ULV will look similar to spacex falcon with mulitple engines.. its a different desing concept..(much after 2020)

even if everything goes as per plan, we are 5 years behind the chinese in rocketry..[not a big gap]
Personally, an experienced person will take it as 10 years. Such a huge project is unlikely to get in service with such a short time period, plus it needs high budget which I don't guess will be released at cost of other projects. Even it's schedule can cost the schedule of other projects. Till 6 to 10 tonnes to GTO okay but for 15 tonnes, a new engine is needed which won't be working in this decade.
keep it up and keep the pressure on Indians ..
Pressures on Indians are determined by own goals, not a communist state. If ISRO is going to make a vehicle like CZ-5 in next 4 years, it is for launch market to tackle Space-X, not CNSA.

Similarly, HSP is indeed intended for space technological prowess projection but it isn't China centered. Nor MOM or AstroSat were. Things are done just to establish ISRO as a major player, national assets and showing off capabilities to attract space launch customer. Cheapness in the Indian Missions is an indivisible part because of this reason.
 

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Trust me, this page is nothing.:biggrin2:
the slides you reposted is holy grail giving insight to the future of indian rocketry.. May be its not a big deal for a wannabe Mod :scared1:..but for newbees like me its AMAZING

Personally, an experienced person will take it as 10 years. .
I think it will be done by 2020 and fully operational by 2022..

SCE engine has been developed,only testing has to be done..

the HLV rocket will be a derivative of GSLV ,,so its not an entirely new design concept,we dont have to work from scratch.
after GSLV launch in jan 2017 we will have a fully operational Cryogenic engine, we have semicryo engine, solid boosters are not a bog deal. as far as fuel Tanks are concerned -ISRO is qualified enough to make those in sleep walk..

all we need to do is assemble the preexisting tech that we will have by 2018.. test the design and raise the toast.:daru:
 

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