微软模拟飞行2020波音747-8自动驾驶使用指南

THR REF

In THR REF mode auto throttle is holding the maximum allowed thrust. This thrust is changed with from TOGA to CLB thrust upon reaching the thrust reduction altitude.

Note - You cannot engage auto throttle in THR REF mode when the Flight Directors (FD) are off. When A/T is in THR REF mode and you set both FDs to off the auto throttle will switch to SPD mode.

On the ground when A/T is armed (and F/D on) you can press the TakeOff GoAround Button as assigned in the control settings to engage THR REF. The auto throttle will spool up the engines to takeoff thrust and then disconnect from the levers (HOLD).

In the air, when you press the FLCH or VNAV button with A/T switch in the ARM position auto throttle will engage in THR REF mode.

Note - Moving your throttle levers to idle will disengage the auto throttle. It is still armed and will resume when you press FLCH for example.

在THR REF模式下，自动油门将保持最大允许推力。达到推力减小高度后，该推力从TOGA推力更改为CLB推力。

注意 -当飞行指引仪(FD)关闭时，您无法在THR REF模式下使用自动油门。当A / T处于THR REF模式并且您将两个FD都设置为关闭时，自动油门将切换到SPD模式。

在地面上，当A / T处于武装状态(并且F/D处于打开状态)时，您可以按控制设置中指定的TakeOff GoAround按钮来启用THR REF。自动油门将使发动机加速以获取推力，然后与操纵杆断开(HOLD)。

在空中，当您在A/T开关处于ARM位置的情况下按FLCH或VNAV按钮时，自动油门将进入THR REF模式。

注意 -将油门杆移至怠速位置将脱离自动油门。它仍然处于武装状态，例如在按FLCH时将恢复。