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PROF mode: FMC Speed constraint

Featured Replies

I was making a short flight from VAPO to VABB. I set a speed/alt constraint at BBB/117/14 PBD, 210/5000 for approach to VABB ILS 27. But during climb from VAPO, plane is maintaining 210 knots where as I am expecting to accelerate to 250 kts! The mentioned constraint is for approach to VABB. Not for dep. from VAPO.

For ref., I did the same flight with Fenixsim A320 and PMDG 737-800. They accelerate to 250 kts below 10k and to 290 kts above 10k. They only slow down to 210 kts when approaching the PBD: BBB/117/14 PBD, 210/5000.

Is it a bug in IniBuilds A310? Please help.

Regards,

Haseen Ahmad

Dhaka, Bangladesh.

 

  • Staff

Hi Haseen, 

In order to to properly diagnose this, I need the following:

 

A screenshot of your FMS (with constraints inserted)

Your full route, including weights and cost index

A screenshot of your FCU

  • Author

Dear JoshF:

I tried to reproduce as you said. Please find attachments. Hope these help.

Regards,

Haseen Ahmad.

 

 

iB A310_2 SPD ALT Cons.PNG

iB A310_3 RTE F-PLN.PNG

iB A310-5 Cost Index CI.PNG

iB A310-6 INIT PAGE B.PNG

iB A310_8 PFD FCU 210 kts.PNG

  • Staff
4 hours ago, Haseen said:

Dear JoshF:

I tried to reproduce as you said. Please find attachments. Hope these help.

Regards,

Haseen Ahmad.

 

 

iB A310_2 SPD ALT Cons.PNG

iB A310_3 RTE F-PLN.PNG

iB A310-5 Cost Index CI.PNG

iB A310-6 INIT PAGE B.PNG

iB A310_8 PFD FCU 210 kts.PNG

Thanks Haseen, I'll take a look as soon as possible

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