目前推力最大的火箭之一是阿丽亚娜5，可将12.5吨卫星送到地球轨道，而不是到千倍之遥

遥的月球,火箭所载燃料为：主推级含130吨液氧+25吨液氢；助推级含277吨固体燃料。不知到月球得需多少吨燃料？

Ariane 5’s cryogenic H158 main stage (H173 for Ariane 5 ECA) is called the EPC (Étage Principal Cryotechnique - Cryotechnic Main Stage). It consists of a large tank 30.5 metres high with two compartments, one for 130 tonnes of liquid oxygen and one for 25 tonnes of liquid hydrogen, and a Vulcain engine at the base with thrust of 115 tonnes-force (1.13 meganewtons). This part of the first stage weighs about 15 tonnes when empty.

 Solid boosters

Attached to the sides are two solid rocket boosters (SRBs or EAPs from the French Étages d’Accélération à Poudre), P238 (P241 for Ariane 5 ECA), each weighing about 277 tonnes full. Each delivers a thrust of about 630 tonnes-force (6.2 MN). These SRBs are usually allowed to sink to the bottom of the ocean, but like the Space Shuttle Solid Rocket Boosters they can be recovered with parachutes, and this is occasionally done for post-flight analysis. (Unlike Space Shuttle SRBs Ariane 5 boosters are not reused.) The most recent attempt was for the first Ariane 5 ECA mission. One of the two boosters was successfully recovered and returned to the Guiana Space Center for analysis.^[2] Prior to that mission, the last such recovery and testing was done in 2003.

所有跟帖： 

• 谢谢八兄的解释，有道理。但月球仍有地球六分之一引力，克服引力起飞仍要耗可观燃料， -gpyang- ♂ (282 bytes) () 09/11/2011 postreply 09:50:11

• saturn V vs ariane -sts135- ♀ (758 bytes) () 09/12/2011 postreply 08:33:00

• 土星5的去月任务可携带45吨有效载荷 -sts135- ♀ (0 bytes) () 09/12/2011 postreply 08:36:44

• 因为没有大气层，脱离引力所需能量没那么大 -sts135- ♀ (137 bytes) () 09/13/2011 postreply 09:15:35

• I don't understand, how it works? Fuel was in the orbit? How arm -gpyang- ♂ (0 bytes) () 09/13/2011 postreply 11:26:29

• How Armstrong jumped to the orbit? -gpyang- ♂ (0 bytes) () 09/13/2011 postreply 11:29:09

• 是几个独立系统 -sts135- ♀ (258 bytes) () 09/13/2011 postreply 11:50:33

• ”绕月轨道飞行器“距月球面的距离多大？飞行速度多快？ -gpyang- ♂ (121 bytes) () 09/13/2011 postreply 20:47:17

• 精确计算，和末端手动操作，手动操作是培训必修。 -sts135- ♀ (63 bytes) () 09/14/2011 postreply 07:36:01

• 现在工程上应用的东西绝大多数都是上世纪50年代之前的老东西 -sts135- ♀ (152 bytes) () 09/14/2011 postreply 07:57:44

• 中国欠缺的不是理论计算，是精密加工和系统工程 -健康中医- ♂ (127 bytes) () 09/14/2011 postreply 12:49:45

• 这个精密加工到现在还是被禁运的呢 -sts135- ♀ (77 bytes) () 09/14/2011 postreply 12:59:22

• 材料和精加工，真的是没有办法 -健康中医- ♂ (255 bytes) () 09/14/2011 postreply 21:19:18

• 幸好没做航天飞机，没有capsule经济核算 -sts135- ♀ (0 bytes) () 09/15/2011 postreply 06:58:55

• 按你的逻辑，飞机都是69年以后才能飞的了，不然怎么导航呀 -sts135- ♀ (69 bytes) () 09/14/2011 postreply 17:11:20

• 你这个有点凭空瞎说了，航天飞机都还是手动操作的 -sts135- ♀ (0 bytes) () 09/14/2011 postreply 15:39:16

• 你太牛了，你连那个时候的控制软件的水平都知道 -sts135- ♀ (29 bytes) () 09/14/2011 postreply 17:12:42

• 我可不是在帮谁辩解，这是我在NASA干活的时候学到的。 -sts135- ♀ (99 bytes) () 09/14/2011 postreply 07:32:29

• 地球的escape velocity 是 11.2 km/s -sts135- ♀ (120 bytes) () 09/14/2011 postreply 13:20:07

• 回复：地球的escape velocity 是 11.2 km/s -sts135- ♀ (383 bytes) () 09/14/2011 postreply 14:42:08

• 更正一下 -TBz- ♂ (928 bytes) () 09/14/2011 postreply 16:02:35

• 对，我只是简化算的，用的都是worst cast scenario -sts135- ♀ (107 bytes) () 09/14/2011 postreply 18:27:35

• 一时半会儿也没查到具体的环绕速度，就顺手拿了逃逸速度 -sts135- ♀ (0 bytes) () 09/14/2011 postreply 18:30:55

• 2.353吨的 Aerozine 50/N2O4 -sts135- ♀ (0 bytes) () 09/14/2011 postreply 18:28:30

• 啊，是混肼加四氧化二氮 -TBz- ♂ (0 bytes) () 09/14/2011 postreply 20:18:05

• 火箭都是自带氧化剂，而不是靠大气中的氧 -sts135- ♀ (163 bytes) () 09/14/2011 postreply 14:46:20

• 常识错误的人是你啊，氧气变液态是低温。 -sts135- ♀ (285 bytes) () 09/14/2011 postreply 15:46:01

• 你这人对自己一知半解的东西胡搅蛮缠。 -sts135- ♀ (245 bytes) () 09/14/2011 postreply 16:49:29

• 添加的本身就是液态氧，不用什么加压。另外压力越低液态氧质量越高，对发射越有利。 -sts135- ♀ (37 bytes) () 09/14/2011 postreply 18:34:29

• 你牛，你厉害，你眼光毒辣，你什么都懂，你什么都知道 -sts135- ♀ (0 bytes) () 09/15/2011 postreply 07:02:11