What will be the Chang'e-5 actually?

Having read not too long ago Habré one post , and some argue in the comments to it, like on whether Chinese machine Chang'e-5 Luna-16, to deliver the lunar soil to Earth even in the distant 1970, I decided to find out all possible details about the planned for 2017 lunar mission in China. But as the US and China is not secretive likes better than the Soviet Union, then find a colorful presentation on the Internet is not so easy, but something managed to find. Thus was born the post. If interested ask for cat.



On the title of illustration, to the above post, we see the lander conical shape on top of the takeoff stage, based on this we can assume that it will use a similar scheme of the flight pattern of the Moon-16, but it is not. As reported by the Chinese space agency mission for the delivery of the lunar soil is planned for the scheme Кондратюка (Or Apollonian scheme if you want). It's such a scheme in which the surface of the moon landing exercises specially designed for this unit, while the unit is returned to the fuel inventory for shipment to the land remains in lunar orbit. This scheme is not for nothing was selected for Apollo missions, as it gives a decent gain in weight delivered to the moon cargo. A manned mission is especially important. Therefore, this image can be directly attributed to the misleading and little to reflect reality.

Selected Chinese scheme during the execution of the mission Chang'e-5, will allow not only to deliver to Earth lunar soil (incidentally about 2 kg, compare with 101 grams of lunar-16) as elements of the future work will enable manned mission to the moon, as well as soil nice bonus and a way to confirm the correctness of the selected scheme. Here is what was found:

Yes, Apollo is not very similar, but there are all the necessary elements: the orbital module, consisting of the recovery vehicle and instrument-instrument compartment, as well as the lunar module, which consists of the landing and take-off stage. Noteworthy couple of parts, firstly, the lunar module is on top of the orbital, but in the US and the Soviet lunar program it was the opposite, second, the returned unit is not docked to the instrument-the instrument compartment, but as it is inside. Obviously the second design solution follows from the first. As we see the Chinese are moving away from direct copying and already added their original ideas. The next slide shows a diagram already flying:

Even without knowing the Chinese ratification of this slide, everything is clear. In fact, we see the now classic Apollonian scheme, but instead there appears astronauts lunar soil. We analyze its stages:

1. Start the machine from the Earth to the Moon;
2. Fly to the Moon;
3. 180 degree turns and braking to bring the station to orbit the moon;
4. Separation of compartments (with the orbital module just dumped a special compartment closing lander);
5. Planting lunar module on the moon;
6. Ground Fence;
7. Start the takeoff stage of the lunar module;
8. Joining the takeoff stage to the orbital module (at this stage, the movement of the capsule with the lunar soil in the lander);
9. Undocking takeoff stage and start to Earth; li >
10. Fly to the Earth;
11. Undocking instrumentation aggregate compartment with a lander and landing; What would fully comply Apollonian scheme lacks only the item with the rebuilding of compartments. Recall that the operation is carried out every time after ship Apollo series went on the flight path of the moon (well, except for Apollo 8), in order to dock with the orbiting lunar module for the subsequent transition astronauts. It looked like this:
    
    Given that no astronauts on Chang'e-5 is not expected, then this operation it was decided not to pursue. Although, in terms of working out its future missions would not be superfluous.
    
    As in the case of Apollo and Soviet Probes entrance descent capsule will be held with the escape velocity. For working out of this stage in October of that year and appointed a pilot flying machine, which will consist of a converted Chang'e 3 docked with the recovery vehicle from Chang'e-5. According to the plan of the mission, this machine must fly to the moon, go to its orbit, and then start to enter the Earth and its atmosphere in the escape velocity, and of course, after all this land successfully.
    
    Incidentally, this lander mission (and Chang'e-5) looks exactly like the lander Union or Шэньчжоу only smaller, which proves once again that China seriously fulfills the elements of a future manned mission to the moon. The photograph above is just lander mission planned for October.
    
    And yet, on the basis of the above, how could look launch Chang'e-5 from the moon? I think that the illustration below is more consistent with reality:
    
    
    
    Source: habrahabr.ru/post/233071/