B737 Vref Ice
Hi Folks,
I understand that with selection of wing anti-ice (and TAI) that the min maneuvre speed tape and the stick shaker logic are adjusted to account for icing (ie they´re raised). Also that the FMC computed Vref is not adjusted and therefore you have to add 10 kts to Vref 15 in order to get Vref Ice.
What I don´t understand is why this is only applied to flap 15 landings and not to flap 30 and 40.
Can anyone enlighten me?
Kind Regards, Framer