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VNAV CLimb
Posted: Sat Oct 21, 2023 4:47 pm
by PowieT
Noticed on a test flight.
FOB: 15tons
Will reach TOC approx after 250nm ... climbing only with 400-500 ft/min....
Same in Open Climb.
With V/S theres no problem to climb with 1500 ft/min or more.
Re: VNAV CLimb
Posted: Sat Oct 21, 2023 4:59 pm
by RicardoVitor
PowieT wrote: ↑Sat Oct 21, 2023 4:47 pm
Noticed on a test flight.
FOB: 15tons
Will reach TOC approx after 250nm ... climbing only with 400-500 ft/min....
Same in Open Climb.
With V/S theres no problem to climb with 1500 ft/min or more.
Yes, this is happening to me too. After passing 20,000 feet, it starts to climb without wanting to reach cruise, between 900, 800 and 600 FPM, climbing very slowly.
Re: VNAV CLimb
Posted: Sat Oct 21, 2023 5:00 pm
by RicardoVitor
RicardoVitor wrote: ↑Sat Oct 21, 2023 4:59 pm
Yes, this is happening to me too. After passing 20,000 feet, it starts to climb without wanting to reach cruise, between 900, 800 and 600 FPM, climbing very slowly.
In this case, when it starts to behave like this, I set the IAS to 270 knots until cruising. It tends to run more.
Re: VNAV CLimb
Posted: Sat Oct 21, 2023 5:20 pm
by RicardoLVFR
The A330 is a good initial climber, after FL200 upwards its kind of slow depending on weight and weather. Usually a long haul flight takes from 30 to 35 minutes to reach cruise altitudes.
Re: VNAV CLimb
Posted: Sat Oct 21, 2023 10:54 pm
by RicardoVitor
RicardoLVFR wrote: ↑Sat Oct 21, 2023 5:20 pm
The A330 is a good initial climber, after FL200 upwards its kind of slow depending on weight and weather. Usually a long haul flight takes from 30 to 35 minutes to reach cruise altitudes.
I think this may be adequate if he rises to something around 270 IAS. Honestly, as it is, it is rising very slowly, almost stopping. Now if you climb at 270 IAS it climbs very comfortably up to cruising altitude. One question Ricardo, is the Coast Index simulated in the LVFR system?
Re: VNAV CLimb
Posted: Sat Oct 21, 2023 11:09 pm
by RicardoLVFR
RicardoVitor wrote: ↑Sat Oct 21, 2023 10:54 pm
RicardoLVFR wrote: ↑Sat Oct 21, 2023 5:20 pm
The A330 is a good initial climber, after FL200 upwards its kind of slow depending on weight and weather. Usually a long haul flight takes from 30 to 35 minutes to reach cruise altitudes.
I think this may be adequate if he rises to something around 270 IAS. Honestly, as it is, it is rising very slowly, almost stopping. Now if you climb at 270 IAS it climbs very comfortably up to cruising altitude. One question Ricardo, is the Coast Index simulated in the LVFR system?
It is yes.