LNAV/VNAV BAROVNAV APPROACH
Hello,
I have some questions on Baro vnav approaches on b737NG.
First, is it necessary to correct the DA and platform altitude for cold temperatures as long as the OAT is above the minimum published temperature?
Besides, in your airline do you add 40/50ft to comply with the CDFA technique?
If we do not correct these altitudes, is it acceptable to fly a lower angle of descent? Does the procedure guarantees obstacle margin as long as the temperature is above the minimum published temperature? this margin decreasing when we are close to the mini published T.
What happens if I decide to correct the altitudes (platform) and in consequence to fly the published angle of descent? Is that acceptable?
Finally, how does the system reacts if I put the temperature and QNH in the DESCENT FORECAST page?
I know that some FMC's will make some kind of corrections to keep optimum obstacle margin if temperature decreases close to the minimum temperature published for the procedure. Does it "update" the FAP ( making it closer to the runway)?
Thank you