Michael Moe

speedtape Question in the NGX

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Hi,

Its bin a while flying this old bird and i still love and enjoy her so much :-) 

I am on a flying to Helsinki and notice my speedtape with this yellow over/under my crz speed and wondering what this very narrow window actually meens ?

Its more common on approach and landing to understand but in CRZ ?

Thanks for learning to fly :-)

https://imgur.com/a/HJqnvgC

Michael Moe

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Maximum maneuvering speed. Fly into the amber bar, and you have reduced maneuver capability. Should be in the FCOM somewhere. Can't really help you figure out where since I don't own the NGX, I'm just using the FCOM from the 747-400 to pull this up.

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33 minutes ago, Michael Moe said:

Hi,

Its bin a while flying this old bird and i still love and enjoy her so much 🙂

I am on a flying to Helsinki and notice my speedtape with this yellow over/under my crz speed and wondering what this very narrow window actually meens ?

Its more common on approach and landing to understand but in CRZ ?

Thanks for learning to fly 🙂

https://imgur.com/a/HJqnvgC

Michael Moe

Michael, every symbol and message on every display is defined in the FCOM.  Sure, there's lots of pages but it's easy to find anything if you follow a few simple steps.  First open FCOM v1 and the Table of Contents for both volumes is up front, find the chapter on flight displays to be Ch 10.... open FCOM to beginning of Ch 10 and find the Chapter Table of Contents and the PFD speed indications starts on 10.11.6. 

You'll find your specific answer on page 10.11.8.  Index items 5 and 7 are minimum and maximum maneuver speeds.

Finding the answer this way is much quicker than posting on the forum and waiting for a response.

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That's some narrow envelope!  I don't think I've never seen it that tight.  I flew at FL400 last night and the FMC calculated max FL380, but I still burned enough to get up there and have a decent envelope.

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You‘re close to the coffin corner... fly faster and you may damage your structure, fly slower and you may stall. That‘s actually the limitation of the cruise altitude and I bet you are way over the max flightlevel adviced by the FMC. 😄

it‘s a simulator, I guess you‘re fine learning that way but the manuals are really interesting to read about. 

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Ahh thanks everyone. FL390 might be to much with that weight but PFPX gave me this altitude at that position. 

Thanks again 

Michael Moe 

 

 

 

 

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6 hours ago, Michael Moe said:

Ahh thanks everyone. FL390 might be to much with that weight but PFPX gave me this altitude at that position. 

Thanks again 

Michael Moe 

 

 

 

 

Don't use PFPX flight plan as anything but a plan that you deviate from as warranted by conditions.  Perhaps your SAT is higher than forecast.  Stick to the altitudes available to you in the FMS.

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7 hours ago, Michael Moe said:

Ahh thanks everyone. FL390 might be to much with that weight but PFPX gave me this altitude at that position.

I read the altitudes from PFPX and often wonder where it even gets its calculations from. I just stick with the FMC.

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Thanks , now this pilot to pilot conversation is hard to find in the FCOM right ? 😉

Thanks for all of your answers and hopefully you will stick to my "plan" regarding sharing knowledge ? 😃

Love you all 

 

Michael Moe

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I mean, you should still read the FCOM to have a better understanding of what everything does. If you need any further clarification on something, by all means ask away.

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I can nothing but second Kevin‘s advice. The FCOM and FCTM are actual Boeing manual and if they aren‘t perfect to study, what else? But if one needs help from experienced pilots, there are many of them here type rated on the models we have and there‘s always something to learn when they jump in. 

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19 hours ago, Ephedrin said:

I can nothing but second Kevin‘s advice. The FCOM and FCTM are actual Boeing manual and if they aren‘t perfect to study, what else? But if one needs help from experienced pilots, there are many of them here type rated on the models we have and there‘s always something to learn when they jump in. 

Thanks , its just harder to "just" read the FCOM and FCTM without actually getting a real pilot education.

I feel i need the dialog with people and gladly you guys fill in. 😉

its stil a hobby for me.

I do use the FCOMS but must admit that a Pilot instructor (like Blackbox711)with video - learning the systems and how they interact with each-other is more "interesting " for me 😉 But i agree with you.

(and airline2sim offcause - great series btw)

Thanks Michael Moe

Edited by Michael Moe
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