787 Blog With Pics

Neat stuff, but the Collins displays are pretty hacked up. Not to sound to a.netish but last I check a display that showed your climb profile was VNAV not LNAV, and maybe I'm just used to deal with smaller engines, but having 97% N1 but 103% N2 wouldn't be too good for long term engine use.
 
Neat stuff, but the Collins displays are pretty hacked up. Not to sound to a.netish but last I check a display that showed your climb profile was VNAV not LNAV, and maybe I'm just used to deal with smaller engines, but having 97% N1 but 103% N2 wouldn't be too good for long term engine use.

Collins suck, shoulda gone Honeywell!!!

Ethan, you're an a.net nerd! ;)
 
VNAV is your climb profile.. hence Vertical NAVigation.


Climb N1's up in the high altitudes on GE engines are typically above 100%....

We were doing normal power T/O's in the 767 today with the pratt 4060's and TO N1 was 101 something percent.
 
VNAV is your climb profile.. hence Vertical NAVigation.


Climb N1's up in the high altitudes on GE engines are typically above 100%....

We were doing normal power T/O's in the 767 today with the pratt 4060's and TO N1 was 101 something percent.


I know that... The picture that they have of the MFD and PFD have a vertical navigation picture and it says "LNAV PATH". Also, I've seen N1s above 100%, but not N2s higher then N1s.
 
I know that... The picture that they have of the MFD and PFD have a vertical navigation picture and it says "LNAV PATH". Also, I've seen N1s above 100%, but not N2s higher then N1s.

I believe that it is labeled as LNAV because it is showing a cross section of the airspace that the LNAV will be flying above and through. Also I don't see the magenta path for a VNAV profile.
 
Back
Top