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，自動油門將保持最大允許推力。達到推力減小高度后，該推力從TOGA推力更改為CLB推力。

注意 -當飛行指引儀(FD)關(guān)閉時，您無法在THR REF模式下使用自動油門。當A / T處于THR REF模式并且您將兩個FD都設(shè)置為關(guān)閉時，自動油門將切換到SPD模式。

在地面上，當A / T處于武裝狀態(tài)(并且F/D處于打開狀態(tài))時，您可以按控制設(shè)置中指定的TakeOff GoAround按鈕來啟用THR REF。自動油門將使發(fā)動機加速以獲取推力，然后與操縱桿斷開(HOLD)。

在空中，當您在A/T開關(guān)處于ARM位置的情況下按FLCH或VNAV按鈕時，自動油門將進入THR REF模式。

注意 -將油門桿移至怠速位置將脫離自動油門。它仍然處于武裝狀態(tài)，例如在按FLCH時將恢復(fù)。