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markgsu

PMDG Autothrottle and Visual Approach

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Quick questions for the community because I seem to be struggling with  this.

 

FMC setup, go  to go there. 

Under 10,000ft I am disengaging the autopilot to fly my visual approach. 

Autothrottle seems to hold the speed well until I get on final.

 

It doesn't seem like it is holding my VRef speed well at all. I consistently have to disengage, which results in a hard touchdown with high rate of descent because I seem to be floating it. 

 

On the MCP I have the A/T button alluminated with the speed in the MCP set at Vref+5 so around 142 or so. I am already in full landing setup with flaps at 30 and gear down. 

 

Where am I going wrong. In the FMC I do have the approach set at flaps 30 and vref of 137. 

 

 

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Do you have a throttle quadrant?

 

If so then set it up in the FMC the way you prefer and then:

1)with the option: "Thrust Lever overrides AT - ALLWAYS" you have to constantly follow the PMDG throttles with your TLs even when the AT is engaged.

2)with the option: "Thrust Lever overrides AT - in HOLD only" you have to check your TL position only when the thrust mode changes to HOLD. (FLCH descend for example)

3)with the option: "Thrust Lever overrides AT - NEVER" you dont have to worry about the TLs at all when the AT is engaged.

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HOLD is generally the best option, it gives you manual control above 80kts on take off and during idle descents

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