[Solved] Climb and descent profiles?

[Gábor]

Hi,

Is it possible to set up these profiles in fms?

 

What I mean with descent: when you are descenting with vnav, usually it is 2400 ft/ min. Is it possible to set up 1500 ft/min in fms? In TBM it was possible. This determines the T/D point.

Might be this interesting in climb also if do not want to use the v/s option...

 

Thanks.

[Graeme_77]

You can set the descent angle in degrees. It's on VNAV Setup under the PERF index. For climb it's normal to climb in FLC mode and 250 kts. Check the operations reference included in the documentation for other climb information.

[Rodeo]

So it's an angle rather than performance-based like on recent airliners? Interesting

Edited January 9, 2022 by Rodeo

[mraviator]

On business jets, you will typically climb and descend at a specific speed schedule.

Example, 250/300/M0.78 means you start your climb at constant 250 KIAS until reaching 10000 ft (speed limited to 250 KIAS below 10000 ft), then pitch nose down to accelerate to 300 KIAS, then hold 300 KIAS until you reach the crossover altitude where 300 KIAS matches Mach 0.78 (high 20s, low 30s altitude, depending on the speed pair). At that point, you toggle to Mach hold and climb a constant Mach to your cruise altitude.

You can achieve this by using the FLCH (Flight Level Change), which should hold you selected speed using pitch at whatever thrust setting you have set (typically you would set CL (Climb) thrust. 

Descent is the same, but in reverse (0.78/300/250)

[Gábor]

55 minutes ago, mraviator said:

On business jets, you will typically climb and descend at a specific speed schedule.

Example, 250/300/M0.78 means you start your climb at constant 250 KIAS until reaching 10000 ft (speed limited to 250 KIAS below 10000 ft), then pitch nose down to accelerate to 300 KIAS, then hold 300 KIAS until you reach the crossover altitude where 300 KIAS matches Mach 0.78 (high 20s, low 30s altitude, depending on the speed pair). At that point, you toggle to Mach hold and climb a constant Mach to your cruise altitude.

You can achieve this by using the FLCH (Flight Level Change), which should hold you selected speed using pitch at whatever thrust setting you have set (typically you would set CL (Climb) thrust. 

Descent is the same, but in reverse (0.78/300/250)

Thank you.