Let's say that your craft is somewhere in the air. Something is happening and you are losing control. Maybe your battery has low voltage or some of the screws have become loose. Actually, it doesn't matter what exactly is happening over there. You have to act and act fast. If your craft is two or three meters over the ground, in most cases, you minimize the throttle and land within 2-3 seconds. However, if the craft is at 10 or 20 meters of altitude, there are various factors that you should be thinking of. Here are some thoughts that a professional pilot could have:
How much time do I have?
What's the nearest ground that I could land on?
What if I land it over a tree?
Are there any people nearby?
What failsafe mechanisms do I have?
These are some of the questions that you should answer in 2 seconds. Landing on a tree or some other crazy location can be avoided. However, there is a rule, which is quite important. If you are going to crash or if you have lost control, you must...