I use XTR, which has a very good exercise function, surrounded by hovering simulation exercises can be performed separately. From the beginning of the beginning of the tail to hover, hover got 10 minutes and does not blow up in a relatively small area and then into the general flight mode frog jump takeoff and landing practice, this process should be repeated constantly takeoff, landing, I got some time to have a qualitative leap, feeling each exercise ten minutes without bombing, and then aiming machine.

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