simple comparisons of India's lunar lander Vikram and China's Change4
1). Vikram weight 1470 kg, Change4, 1230 kg
2). Pragyan rover, 24 kg, Change 4 Yutu rover, 140 kg
3. life for Pragyan 14 days, Change4 Yutu rover, over 9 months now, still working
4). engine, Vikram has 5 engines, each has 800 N, total, 4000 N, China Change 4, 1 engine power 7500 N.
5). power/weight ratio: Vikram, 4000 N/1470 kg = 2.72 N/Kg China Change 4, 7500 N / 1230 kg = 6.098 N/Kg
6). temperature control, Vikram, none, so only can stay on the moon for 14 earth days,
中国嫦娥自带推力是月船2的2-3倍, 稳定的悬停月球上空100米,印度这完蛋破烂只好一头摔下去