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Long March 12

From Wikipedia, the free encyclopedia
Chinese medium-lift carrier rocket
Long March 12
Rendering of a Long March 12
FunctionMedium-lift launch vehicle
ManufacturerShanghai Academy of Spaceflight Technology
Country of originChina
Size
Height62 m (203 ft 5 in)
Diameter3.8 m (12 ft 6 in)
Mass433 t (954,602 lb)
Stages2
Capacity
Payload toLEO
Altitude200 km (120 mi)
Mass12,000 kg (26,000 lb)
Payload toLEO
Altitude300 km (190 mi)
Mass10,000 kg (22,000 lb)
Payload toSSO
Altitude700 km (430 mi)
Mass6,000 kg (13,000 lb)
Associated rockets
FamilyLong March
Comparable
Launch history
StatusActive
Launch sitesWenchang Commercial, LC-2
Total launches3
Success(es)3
First flight30 November 2024
Last flight10 November 2025 (most recent)
First stage
Powered by4 × YF-100K
Maximum thrust5,000 kN (1,100,000 lbf)
PropellantRP-1 / LOX
Second stage
Powered by2 × YF-115
Maximum thrust360 kN (81,000 lbf)
PropellantRP-1 / LOX[1]

TheLong March 12 (Chinese:长征十二号运载火箭;pinyin:Chang Zheng 12, abbreviatedLM-12 for export orCZ-12 within China), is a Chinesemedium-lift launch vehicle carrier rocket. Both stages use liquid fuel: refined kerosene (RP-1) and liquid oxygen (LOX).The manufacturer isShanghai Academy of Spaceflight Technology. It is capable of placing at least 12 tonnes (26,000 lb) of payload inlow Earth orbit and at least 6 tonnes (13,000 lb) in a 700 kilometres (430 mi)Sun-synchronous orbit. Its first launch took place on November 30, 2024 from the Hainan International Commercial Aerospace Launch Site onHainan island.[2][3]

There is also a planned reusable version of the rocket, the CZ-12A; efforts are currently underway to verify stage-reusability technology via vertical take-off, vertical landing (VTVL) tests.[4]

History and details

[edit]

CZ-12

[edit]

On 26 February 2024, theChina Aerospace Science and Technology Corporation (CASC) released its annual "Blue Book" which detailed the company's launch plans for the coming year; one of the projects revealed in the Blue Book is the new Long March 12 medium-lift rocket.[2] Long March 12 (CZ-12) is designed as a two-stage rocket: its first stage is powered by fourYF-100K 1250 KN engines usingRP-1 andliquid oxygen while its second stage is powered by twoYF-115 180 kN engines also using RP-1/LOX. The rocket offers two payload fairing choices, one with a diameter of 5.2 metres and another with a diameter of 4.2 metres.[5]

CZ-12 has a stage diameter of 3.8 metres, a first for China. It is launched from the new commercial launch site located at China's coastal spaceport inWenchang.[6]

The maiden launch of the new rocket occurred at 14:25UTC on 30 November 2024 from the Hainan International Commercial Aerospace Launch Site. There were two payloads on the launch: the “Satellite Internet Technology Test Satellite” and the “Technology Test Satellite-3”. Notably, this launch featured the newYF-100K rocket engine in its initial orbital launch attempt; the engine is a critical component of the under-development superheavy-liftLong March 10 lunar rocket. In addition, the maiden launch of the CZ-12 also constitutes the debut launch from the new Hainan commercial launch site.[3]

CZ-12A reusable variant

[edit]
Main article:Long March 12A

In the future, SAST plans to introduce a variant with a reusable first stage: the Long March 12A (CZ-12A). It is anticipated that theCZ-12A will use methane and liquid-oxygen rocket engines from commercial providers.

Launch statistics

[edit]
1
2
2024
2025
2026
  •   Failure
  •   Partial failure
  •   Success
  •   Planned

List of launches

[edit]

CZ-12 launches

[edit]
Main article:List of Long March launches
Serial NumberFlight numberDate (UTC)Launch sitePayloadOrbitResultNote
1Y130 November 2024
14:25
Wenchang Commercial, LC-2Hulianwang Jishu Shiyan 5A
JSW-03
LEOSuccessMaiden flight of Long March 12. - First flight ofYF-100K engines. - First launch from WC-LC-2
2Y24 August 2025
10:21
Wenchang Commercial, LC-2Huliangwang × 9 (SatNet LEO Group 07)LEOSuccess
3Y310 November 2025
02:41
Wenchang Commercial, LC-2Huliangwang × 9 (SatNet LEO Group 13)LEOSuccess

CZ-12A launches

[edit]
This section is an excerpt fromLong March 12A § Launches.[edit]
Flight
No.
RocketSerial No.Date/Time
(UTC)
PayloadOrbitLaunch siteOutcomeBooster
Recovery
1CZ-12AY1NET December 2025JSLCTBD
First flight of thereusable CZ-12A variant.

See also

[edit]

References

[edit]
  1. ^Clark, Stephen (December 2, 2024)."Over the weekend, China debuted a new rocket on the nation's path to the Moon".Ars Technica.
  2. ^abJones, Andrew (26 February 2024)."China's 2024 space plans include 100 launches and moon sample return mission". spacenews.com. Retrieved26 February 2024.
  3. ^abJones, Andrew (30 November 2024)."China launches first Long March 12 from new commercial spaceport in boost for country's lunar plans". spacenews.com. Retrieved4 December 2024.
  4. ^Jones, Andrew (2 January 2025)."China to debut new Long March and commercial rockets in 2025". spacenews.com. Retrieved3 January 2025.
  5. ^"长征十二号运载火箭计划今年首飞". 新华网. 26 February 2024.
  6. ^Jones, Andrew (29 February 2024)."China to debut new Long March rockets in 2024". space.com. Retrieved5 March 2024.
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