Might be me being stupid but need to ask

[donkey20048 19]

I want to step climb in the 777 and use pfpx fine and it calculates the step climbs and also the fmc shows the step climbs in the legs page. It also shows it in the recommended FL so I know I'm not to heavy st that point but wen with the auto step climbs enabled in the options in fmc and the level dialled in already on the MVP it still isn't climbing without me forcing t to climb by pressing in the altitude button on MVP

 

Can someone advise as I'm sure I'm missing a step (no pun intended)

 

Cheers

[Budbud 227]

Hello,

 

With the auto step climb option enabled, you don't need to change the altitude on the MCP. The option will simulate this along with the press on the altitude button.

 

Are you sure that the CDU displays NOW under AT on the VNAV cruise page (below STEP TO on the top left), meaning that you have reached the S/C pseudo-waypoint?

The recommend flight level doesn't always correspond to the step climb level.

[donkey20048 19]

Affirm it always says now when it gets to that way point but maintains the current FL even if I have dialled in the top Fl requested on route

 

I know it is me that has done something wrong but can't work out what it is I'm missing

[scandinavian13 5,192]

 

 

I know it is me that has done something wrong but can't work out what it is I'm missing

 

Leave the MCP altitude at the altitude the FMC has for your cruise altitude.

 

As an example:

 

You're cruising at FL320. The FMC VNAV CRZ Page shows FL320 as the cruise alt. The MCP altitude should be FL320. Don't try to outsmart it, or think ahead of it. Behave as you would on any other flight (where you would not have a different altitude dialed into the MCP other than the one you're flying at cruise).

[donkey20048 19]

Ok so dial in the initial cruise altitude and leave that alone for the rest of flight until descent? I thought I'd have to change the dial

 

Cheers Kyle I'll do that

[Budbud 227]

Ok so dial in the initial cruise altitude and leave that alone for the rest of flight until descent?

 

Yes, the auto step climb option will change the altitude on the MCP when reaching the S/C. It is possible that the fact you dial a higher altitude in prevents the option from performing correctly.