User:Spotty's Friend/sandbox

Testing Falcon 9 statistics counters:

 * Falcon 9 full thrust launches:
 * Falcon 9 full thrust launch success:

Testing proposal for spaceflight talk-page:
Proposal: Allow use of the following flag and descriptor combination as an alternate acceptable form to reference the de-facto state entity Taiwan, Republic of China (ROC):

🇹🇼 Taiwan


 * Background for above proposal: Currently on the Comparison of orbital launch systems wiki page there is an entry for Yun Feng, a supersonic land attack cruise missile that may be in the process of being converted by Taiwan (ROC) into a low earth orbit launcher; under the 'country of origin' column for this entry, this missile is designated by the following: 🇹🇼 Taiwan . The current proposal, if adopted by the community, would make 🇹🇼 Taiwan an alternate and equally acceptable origin designation for this launcher entry.
 * Primary reason for adopting current proposal:

New Draft Article
The Chinese crewed lunar lander  is a type of spacecraft currently under development by the China Academy of Space Technology. The purpose of the lander is to carry two astronauts to the lunar surface.and, after a short stay, to return them to lunar orbit.

Overview
On 12 July 2023, at the 9th China (International) Commercial Aerospace Forum in Wuhan, Hubei province, Zhang Hailian, a deputy chief designer with the China Manned Space Agency (CMSA), intorduced a preliminary plan to land two astronauts on the moon. Under this plan, the astronauts will conduct scientific work upon landing on the moon, including the collection of lunar rock and soil samples. After a short stay on the lunar surface, they will carry the collected samples back into lunar orbit in their spacecraft and subsequently, to Earth.

The landing segment of the preliminary plan consists of a new lunar-lander attached to a "propulsion stage" which together are to be launched into a TLI orbit by the under-development Long March 10 rocket. After reaching lunar orbit, the landing segment will dock with China's next-generation crewed spacecraft (launched by a separate Long March 10 rocket) whereupon two astronauts will transfer to the lander, undock from the next-generation crewed spacecraft, and maneuver the landing segment for a lunar-landing attempt.

The landing segment's powered descent phase will employ a "staged-descent" concept. Under this concept, the combined lander and propulsion stage will begin descending from lunar orbit with the latter providing the necessary deceleration; when the stack is close to the surface, the lander will separate from the propulsion stage and proceed to complete the powered descent and a soft-landing under the lander's own power (the discarded propulsion srage meanwhile will fly a safe distance away from the lander for a hard landing). At the conclusion of the surface portion of the mission, the full lunar lander will act as the ascent vehicle for the astronauts to return to lunar orbit.

Lander attributes
A model of the under-development lunar lander was unveiled at an exhibition to mark three decades of China’s human spaceflight program on 24 February 2023 at the National Museum of China in Beijing.

The physical model of the under-development lander, when taken together with the presentation by Zhang Hailian on 12 July 2023, suggests the future spacecraft will have the following components: four 7500 Newtons main engines; numerous attitude thrusters for precise maneuvering, a stowed lunar rover capabale of carrying two astronauts, docking mechanisms (for docking with the next-generation crewed spacecraft), a crew hatch (for EVAs), a ladder attached to one of the landing legs, two solar arrays and various antennaes.

The estimated mass of the fully-fuelled landing segment (lunar-lander plus propulsion-stage) is approximately 26000 kg.

Draft Article: Tianwen-3
Tianwen-3 is a planned interplanetary mission by China to send an orbiter/Earth-returner and a lander/ascent-vehicle via two separate launches to Mars. The spacecrafts will seek to obtain samples of Martian rocks and soil and then return the cached samples to Earth.

Overview
In summer 2022 during a deep space exploration technology forum held at Nanjing University, Sun Zezhou, chief designer of the Tianwen-1 mission, detailed plans for a Mars sample-return mission based on a two-launch architecture. The mission, which appears to have the backing of senior government and space-industry authorities, is known as "Tianwen-3" and constitutes part of the Tianwen series of space missions.

The current mission architecture envisions two launches during 2028 by the Long March 5 carrier rocket. One launch occuring in November 2028 will send an orbiter/return-vehicle on a Trans Mars Injection trajectory; this spacecraft is anticipated to enter martian orbit in August or September 2029. A second launch in either May or December 2028 will send a lander/ascent-vehicle to Mars with potential landing dates of August 2030 or July 2029 respectively (a May 2028 launch would fall outside of the usual low-energy-least-time Earth-to-Mars launch window and result in a longer interplanetary transit time).

Once the lander arrives on the martian surface it will collect surface samples, possibly via a drill on the lander and an autonomous mobile robot with multiple legs. In October 2030, after several months on the martian surface and after storing the samples collected by the lander and mobile robot, the ascent vehicle will launch from atop the lander and rendezvous with the waiting orbiter. The ascent vehicle will transfer the collected samples to the orbiter/return-vehicle, and the latter then will depart for Earth, also in October 2030. The samples are anticipated to arrive on Earth via an atmospheric reentry vehicle in July 2031.