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taxiya

Brigadier
Registered Member
taxiya said:
Something is wrong with the GTO payload mass. The total mass is 470+120+32=622T or close to 700T depending on if those numbers are fuel mass or including dry mass. It is a rocket similar to Ariane 5 at 777T. Ariane 5 is a LHX/LOX+SRB launcher which enjoys high payload ratio, yet its GTO payload mass is only 6.9T to 10.8T. How could NGLV reaches more than double? Also other figures of NGLV is actually in line with other known rockets of similar class.
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The ppt is wrongly labeled, NGLV GTO variat only provided its LEO load.

Besides that all other diagrams are also wrong, they all gives LEO payload but they are all 3 stages. They must be 2 stages instead with the same figures, otherwise very poor performance. I suspect it is made by fan hearing some romour instead of ISRO who should know how rediculous the diagram is.

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T

taxiya

Brigadier
Registered Member
What made SLIM (Japan's lunar lander) being upside down.
This Youtuber presented a translation of JAXA's press release.

At 00:19:18JST, one of the main engines mulfunctioned causing lander to loose 45% of thrust. It also caused the lander to be inbalanced when touching down. The inbalanced thrust caused the lander to have a high lateral verlocity and tilted over.

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2nd obstacle detection image of the lander shows apparently an engine nozzle fell off, the blue circled bright cone shaped object. This object did not exist in the 1st image moment earlier.

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C

CrazyHorse

Junior Member
Registered Member
anzha said:
After 72 flights, Ingenuity is done. The last flight damaged the rotor and caused the Martian helicopter to lose contact with earth for a time. Contact was reestablished, but she's done flying.

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One of the great space exploration success stories of the 21st century. Lasted way longer than it was supposed to, ended up flying like 20km or something. Amazing.
 
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