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Beta Notes- London, Stansted- Single Engine Performance


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Posted

At this point, I guess they're either just winging it, or using something like simbrief for the fuel consumption figures.

In terms of calculating the speeds, the NGX can calculate those by itself, so I imagine the 777 will do no less.

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Posted

Very nice read and very excited! I will be failing both engines just to get the RAT out ;)

Already tried it - APU comes on too! Unfortunately we ended up in a German field.

  • Commercial Member
Posted

Why is the aircraft side-slipping in the last shot?

 

Are you able to disengage a single AT channel, and does only one throttle move after that has been done?

 

Great post! Nice to see the aircraft in daylight for a change, too!

 

Best regards,

Robin.

Posted

as I was busier than an organist in the midst of the Tocata and Fuge in D Minor.

 

 

Always preferred G Minor

 

(Sarcasm :biggrin:  Thanks for the great post! )

Posted

Already tried it - APU comes on too! Unfortunately we ended up in a German field.

 

how did you actually end up? haha I am excited to see the mess  :ph34r:

Moe ELkarout

 

Boeing777_Banner_Pilot.jpg

Posted

06:07 PM

 

 

I wonder if those N1 figures are consistent. I'd expect them a bit higher ( by windmill ) ? You were low ( 2500' in the 1st shot ) and at 180 KIAS...

 

Sorry for insisting, but the N1 (windmill) values all accross the various shots, seem low to me (?)

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Posted

If I may ask, why?

I don't have any experience with the GE90, but if you fly a CFM56 at 4000ft at 180kts, you should get about 10-15 N1. I think you'd get quite a bit less with the GE90, since it's a lot heavier to keep those big engines turning.

  • Commercial Member
Posted

Mass is not everything. You forget the aerodynamics involved in windmilling in the first place.

 

Big engine (and thus larger mass), but also a bigger fan, and (much!) larger area exposed to the airflow. It's all relative.

 

In fact, a doubling of diameter results in quadrupling the area (square term).

 

Best regards,

Robin.

Posted

I think we should really be seeing higher N1 figures ... But then again, I'm a glider pilot only :wacko:

 

It's 180 knots @ 2500' only - high density alt., etc...

Main Simulation Rig:

Ryzen 5600x, 32GB RAM, Nvidia RTX 3060 Ti, 1 TB & 500 GB M.2 nvme drives, Win11.

Simulators used: Condorsoaring 3 (for soaring) 

XP12 (for almost everything else Aviation Simulation related... with xEnviro and JF Traffic Global ) 

FS 2024 (for A320 simulation with the FENIX 320, BATC and FSLTL)

Posted

Hello Carl,  Nice to read a post which makes sense and gives valuable info. As an aside, I see you are located in Tampa and wondered what the fascination for EGSS was. Regards, Richard Welsh.

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