I’ve been very impressed with flying the Citation Longitude (and others) in MSFS after the AAU update. I noticed that the new VNAV Climb page now has different climb modes (High Speed, Cruise, Maximum Rate). I see that the differences in speeds for each mode are listed in the Garmin. I was wonderin…

Max Rate is typically only used if the STAR has a particularly steep climb gradient required (typical of mountainous areas) or if ATC asks for “best rate” Cruise Climb is a relatively optimal blend of forward speed and climb rate, and generally results in the least fuel used by the time you arrive …

Thanks very much for your answer! My plane seemed to be on Max Rate by default, which I guess explains why the plane wanted to climb at 6000-7000 per minute :sweat_smile:

The good news is it remembers what you select, so my plane is always ready for high speed climb unless I tell it otherwise.

It’s not clear to me whether it is required to enable VNAV and FLC mode during climb or is just VNAV mode sufficient?

For a climb, vnav is not sufficient. Vnav will stop climb according to altitude restrictions but you have to tell it how you want it to climb in the first place. You don’t technically have to use FLC it is just the recommended. You can also use v/s or pitch

Can you help me with the VNAV on the AAU1 Cessna Longitude. I cannot get it to climb or descend even after I have put all the altitudes into each waypoint, the airspeed does follow what I enter. The PFD has FMS on, VNAV is active, AP is on, NAV is on as well as FD.

You still have to select a climb mode Selecting just vnav will stop it climbing at specific altitudes (as restricted in your flight plan / departure) and will resume previous climb mode once past the restriction, but you still have to select a vertical mode (FLC is the default). So, assuming you h…

Thank you for your help, I finally got it to work.

I agree with the FLC BUT it used to work perfectly. Now after this last update the plane climbs at 3000 to 9500 fpm regardless what the flc is set at, blows thru the assigned alt. and overpowers the auto throttle so the plane stalls. I have not changed anything that i am aware of. Any ideas would…

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Citation Longitude Climb Modes

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GimbalAxis March 5, 2023, 9:14pm 7

(sorry, thought I was replying to a different post).