How to set the throttle to turn off the 450 aircraft?

Your question is really complicated, and there are too many kinds of subdivision.

Let's start with the plane.

There are two kinds of aircraft, hydraulic and electric. The electric requirement is that the throttle is 0, and the hydraulic requirement is that the throttle is fully closed.

The remote control needs setting adjustment.

Different remote controllers may adjust in different ways, but the basic idea is the same.

Open the remote control settings and find the option of THR HOLD, usually in the function settings or model settings.

There are two items in this. One is the switch. Choose a flameout switch you need. Some remote controls need to flip items up and down, left and right to find the switch you want. Some remote controls are more advanced. If you pull the switch you need, it will automatically recognize it.

The other is the value of the throttle. The throttle of an oil-driven engine needs to be adjusted as needed. Observe the movement of the steering gear until the throttle can be completely closed. As long as the throttle of the electric engine is 0, the setting value of my throttle lock is-15% (oil-powered fixed wing). This can be adjusted according to the needs of my own plane.