WhiteKnight
27th Feb 2011, 14:02
Hello,
i just got a question regarding Vapp for an unreliable airspeed event in an
A320.
According the QRH there is one line which says the "APP SPD" is VLS +10 with LDG CONF 3.
If you look in the table for LDG CONF/APPR SPD/ LDG DIST on DRY RUNWAYS for Unreliable Speed it gives you a "delta" VREF of 16.
My Question is now, which value du you enter in the MCDU as your Vapp.
Letīs say your flight plan is sequenced you see a VLS of 115 on the MCDU.
VAPP = VREF+ "delta"VREF+ APPR COR
Is my VREF now: VLS(115)+10?
and VAPP = 115+10+16+APP COR?
Any advise of how to handle the extra 10 knots given in the QRH would be great. Thank you
i just got a question regarding Vapp for an unreliable airspeed event in an
A320.
According the QRH there is one line which says the "APP SPD" is VLS +10 with LDG CONF 3.
If you look in the table for LDG CONF/APPR SPD/ LDG DIST on DRY RUNWAYS for Unreliable Speed it gives you a "delta" VREF of 16.
My Question is now, which value du you enter in the MCDU as your Vapp.
Letīs say your flight plan is sequenced you see a VLS of 115 on the MCDU.
VAPP = VREF+ "delta"VREF+ APPR COR
Is my VREF now: VLS(115)+10?
and VAPP = 115+10+16+APP COR?
Any advise of how to handle the extra 10 knots given in the QRH would be great. Thank you