StrandedonEarth Posted September 22, 2019 Share Posted September 22, 2019 So who will win the toxic scrap metal sweepstakes today? Quote Link to comment Share on other sites More sharing options...
tater Posted October 4, 2019 Author Share Posted October 4, 2019 Quote Link to comment Share on other sites More sharing options...
tater Posted October 4, 2019 Author Share Posted October 4, 2019 Quote Link to comment Share on other sites More sharing options...
insert_name Posted October 7, 2019 Share Posted October 7, 2019 Who lost the latest round of hypersonic scrap metal roulette? Quote Link to comment Share on other sites More sharing options...
050644zf Posted October 8, 2019 Share Posted October 8, 2019 According to weibo: http://weibo.com/3279752321/IayuajLZK Yuanwan-21 &Yuanwan-22 carrying Long March 5-Y3 rocket are ready to depart from Tianjin port to Wenchang port. Quote Link to comment Share on other sites More sharing options...
050644zf Posted October 9, 2019 Share Posted October 9, 2019 Photo of heat test of China first Mars probe Source Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted October 9, 2019 Share Posted October 9, 2019 53 minutes ago, 050644zf said: Photo of heat test of China first Mars probe Source That engine looks so much like the LV-T45. Quote Link to comment Share on other sites More sharing options...
kerbiloid Posted October 9, 2019 Share Posted October 9, 2019 This will be the first probe from the Earth who has found the Martian life. Spoiler Because it will land next to the Martian town. Like always. Quote Link to comment Share on other sites More sharing options...
050644zf Posted October 10, 2019 Share Posted October 10, 2019 Photo of heat test of China Space Station Core Block Source Quote Link to comment Share on other sites More sharing options...
050644zf Posted October 11, 2019 Share Posted October 11, 2019 Details of 2020 China Mars Mission Summary of member of Chinese Science Academy,Ye Peijian's Speech Mission Briefing - Probe Probe: Oribitor + Lander (Entry Stage+Mars Rover) Mission Briefing - Flights Launch by LM-5 in July/Aug, 2020, expected 7/23/2020 7 months transfer deepspace maneuver on 10/5/2020 Mars intercept on 2/11/2021 Orbiting Exploration Life: 1 Mars year (687 earth days) Orbit: 265km × 11943km inc 86.9° Payload: 7 exploration equipment Descending and Landing (EDL) Entry Mass: ~1285kg, including Mars rover: 240 kg Entry speed: ~4.8km/s Landing Area: 5°N - 30°N Rovering Life: 90 sol Payload: 6 Exploration Equipment Moving: active suspension, wheeling Communication: Inter-probe communication, earth communication Mission Briefing - Key Timing & Flights Stages TL;DR Mission Briefing - Structure Launch - Earth-Mars Transfer, Mars Orbiting - Decoupling - Landing stage - Parachute Opening - Damping structure extending after heat shield discarded - landed - mars rover deployed Entry stage: Hemispheric cone heat shield + Hemispheric cone back shield diameter 3400mm, height 2607mm Mars rover: 2000mm × 1650mm × 800mm Solar wings: "Butterfly" structure Mission Briefing - Capturing Process TL;DR Mission Briefing - EDL Process Aerobraking 90.4% (of entry speed) 4.8km/s -> 460m/s, ~300s Parachute braking 7.6% 460m/s->95m/s, 90s Powered decent 1.9% 95m/s->3.6m/s, 90s Damping 0.075%, 100m hovering, damping structure Terminal speed: Vertical< 3.6m/s Horizontal < 0.9m/s Mission Briefing - Communication & Comparison TL;DR Quote Link to comment Share on other sites More sharing options...
Scotius Posted October 12, 2019 Share Posted October 12, 2019 I'm not sure i like those articulated solar panels on the rover. Hinges, actuators, control circuits. A lot of points of failure, in rough terrain, far from home. It looks to me as risky move. Quote Link to comment Share on other sites More sharing options...
Wjolcz Posted October 12, 2019 Share Posted October 12, 2019 (edited) 9 hours ago, Scotius said: I'm not sure i like those articulated solar panels on the rover. Hinges, actuators, control circuits. A lot of points of failure, in rough terrain, far from home. It looks to me as risky move. They can always rotate the whole rover to face the Sun with solar panels if they get stuck. Besides, it's probably a much simpler set of motors than what other rovers' robotic arms have. They clearly learned from other missions like Spirit, where the team had to find a slope and angle the whole rover towards the Sun just so it could survive the Martian winter. Edited October 12, 2019 by Wjolcz Quote Link to comment Share on other sites More sharing options...
tater Posted October 17, 2019 Author Share Posted October 17, 2019 Anyone downrange... duck. Quote Link to comment Share on other sites More sharing options...
tater Posted November 4, 2019 Author Share Posted November 4, 2019 Quote Link to comment Share on other sites More sharing options...
tater Posted November 4, 2019 Author Share Posted November 4, 2019 Quote Link to comment Share on other sites More sharing options...
insert_name Posted November 5, 2019 Share Posted November 5, 2019 There were grid fins on this booster, wonder if it got filmed coming down Quote Link to comment Share on other sites More sharing options...
050644zf Posted November 14, 2019 Share Posted November 14, 2019 (edited) https://weibo.com/2656274875/Ig9Ij3Brd https://weibo.com/5386897742/Ig9TssHhm Hovering test of China First Mars Lander, planned to launch in 2020 Edited November 14, 2019 by 050644zf replace with imgur link Quote Link to comment Share on other sites More sharing options...
tater Posted November 14, 2019 Author Share Posted November 14, 2019 (edited) 10 minutes ago, 050644zf said: Hovering test of China First Mars Lander, planned to launch in 2020 The link doesn't go to a page about the hover test that I can tell. Also, the 2 images are not linked properly and don't show. http://www.chinadaily.com.cn/a/201911/14/WS5dccdba0a310cf3e3557755f.html ^^^has a video Edited November 14, 2019 by tater Quote Link to comment Share on other sites More sharing options...
050644zf Posted November 14, 2019 Share Posted November 14, 2019 5 minutes ago, tater said: The link doesn't go to a page about the hover test that I can tell. Also, the 2 images are not linked properly and don't show. It did go to the weibo post from CCTV News and CNSA about it, and there maybe connection problem of Weibo server if you can't load that. Now I replace all of them with imgur link Quote Link to comment Share on other sites More sharing options...
tater Posted November 14, 2019 Author Share Posted November 14, 2019 1 minute ago, 050644zf said: It did go to the weibo post from CCTV News and CNSA about it, and there maybe connection problem of Weibo server if you can't load that. Now I replace all of them with imgur link Saw the video, but no sense of the scale of that rig... impressive. Quote Link to comment Share on other sites More sharing options...
mikegarrison Posted November 14, 2019 Share Posted November 14, 2019 That's pretty cool, but how do they get that big truss structure onto Mars first? Quote Link to comment Share on other sites More sharing options...
050644zf Posted November 14, 2019 Share Posted November 14, 2019 (edited) Another video of hover test from https://weibo.com/2280198017/Ig9URkky8 http://sjycdn.miaopai.com/stream/bFEQjrptV1q5YeY8NY5uqtp8FkK9UJOJipxnLw___32.mp4?ssig=f1918affe687d95c484fccfe1e3c1e5a&time_stamp=1573712828415 Edited November 14, 2019 by 050644zf Quote Link to comment Share on other sites More sharing options...
tater Posted November 14, 2019 Author Share Posted November 14, 2019 Quote Link to comment Share on other sites More sharing options...
tater Posted November 16, 2019 Author Share Posted November 16, 2019 https://gbtimes.com/china-sets-out-long-term-space-transportation-roadmap-including-a-nuclear-space-shuttle Interesting article. Quote Link to comment Share on other sites More sharing options...
MinimumSky5 Posted November 16, 2019 Share Posted November 16, 2019 Its really quite shocking to compare this to the equivalent plans from NASA, which just seam to amount to 'Let's land someone on the moon, then maybe we'll make use of lunar ice.' That's a very good goal, but without being slotted into a larger overall plan like this, it's kind of pointless. Quote Link to comment Share on other sites More sharing options...
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