(Two questions) In China, is it illegal to fly helium balloons into space for aerial photography? I want to make an aircraft that looks like foreign man-made aircraft and open it when it returns to E

(Two questions) In China, is it illegal to fly helium balloons into space for aerial photography? I want to make an aircraft that looks like foreign man-made aircraft and open it when it returns to Earth

It is definitely illegal. Any aircraft flying into the sky in China needs to be approved. Although a model aircraft with a height of tens of meters will be left alone once it is moved, it does not mean that it is allowed. Homemade helium balloons like you said will definitely not be approved.

I don’t know how big you plan to make it. If it is the size of a common balloon on the market, it won’t be a big problem and no one will care. But it can't fly very high before it explodes, and it can't reach space at all.

As for the automatic parachute opening, get a height sensor, or something like the automatic height-fixing parachute opening in skydiving equipment, you should be able to buy it online. This is not a big problem.

But another problem is that if you open an umbrella and float down from high altitude, you don’t know where it will float, and you may never find your camera equipment.