Aircraft, drones or multi-axes, why not design parachutes?

The major of 1 needs sufficient clarity (above 1080); 2. The equipment should be stable and have strong anti-interference ability against wind, magnetism and signals; 3. The equipment should be controllable (2km away), and it is convenient to replace the equipment, such as 5d2, and the image transmission is timely and fast; 4. Long battery life, high flying height, excellent equipment quality and special supporting software.

Ordinary: low price, simple operation, poor image transmission effect, weak power (generally 5- 15 minutes), weak anti-interference, low flying height and low definition. The equipment is not replaceable, not easy to be damaged, and has no upgrade value. ..

Price: a few tens -4, and those within 5k are basically common.

Generally, the equipment above 20k is professional (excluding cameras and other equipment, 5d3 stand-alone is close to 2w).