On the Descent page of Boeing aircraft, it is customary to change the default speeds prior to leaving cruise altitude (we typically do it on the ground before departure).
For instance, in the B737, we set .78/280 for our descents. 
 

Does anyone know what the correct speeds should be for the B787 Dreamliner? I’m fairly sure the default speeds in the box are incorrect.

 

4 hours ago, Boeing_Driver said:

On the Descent page of Boeing aircraft, it is customary to change the default speeds prior to leaving cruise altitude (we typically do it on the ground before departure).
For instance, in the B737, we set .78/280 for our descents. 
 

Does anyone know what the correct speeds should be for the B787 Dreamliner? I’m fairly sure the default speeds in the box are incorrect.

 

Quick and dirty answer, we leave the aircraft alone based on CI. In a busy environment, we use .840/310, .850/330, or whatever ATC or STAR restriction. This default FMC in 748 or 787 leaves much to be desired on this MSFS2020.

 

 

 

Edited April 4, 20242 yr by LRBS

3 hours ago, Boeing_Driver said:

On the Descent page of Boeing aircraft, it is customary to change the default speeds prior to leaving cruise altitude (we typically do it on the ground before departure).
For instance, in the B737, we set .78/280 for our descents. 
 

Does anyone know what the correct speeds should be for the B787 Dreamliner? I’m fairly sure the default speeds in the box are incorrect.

 

You can change the default descent speeds on the FMS VNAV page (Descent), but in any case the speedbrakes do an excellent job in slowing down the aircraft if needed.

18 hours ago, LRBS said:

Quick and dirty answer, we leave the aircraft alone based on CI. In a busy environment, we use .840/310, .850/330, or whatever ATC or STAR restriction. This default FMC in 748 or 787 leaves much to be desired on this MSFS2020.

 

 

 

Interesting. I knew it was high, but that’s faster than I thought it would be.

28 minutes ago, Boeing_Driver said:

Interesting. I knew it was high, but that’s faster than I thought it would be.

Yeah, both are very close on operating speeds. As I mentioned we let it go by the CI, on departers, you see somewhere between 340/.850 or 350/.860 up to the transition to the Mach#, or 310/.850 max if turbulence. On descent most of the time we find ourselves speed-limited by ATC or STAR. I wasn't too long on the 787 (1 year or so) but on the 748 is a constant heated discussion about our speeds. 

18 hours ago, LRBS said:

Quick and dirty answer, we leave the aircraft alone based on CI. In a busy environment, we use .840/310, .850/330, or whatever ATC or STAR restriction. This default FMC in 748 or 787 leaves much to be desired on this MSFS2020.

 

 

 

I love working the 787 in the air traffic environment... its so fast 🙂  Faster to get out of my sector haha