IFR Question
IFR Experts !
I am seeking clarification on some IFR questions which I am not certain on. I am not sure if the explanation below is suffice however as an example. Please feel free to add in any vital information that could clarify such a maneuver if possible :
Wind : 20-30 Northerly
Cloud: Some SCT cloud around the MDA of 800’ Essentially may not be possible to break visual at 800’ MDA
1. Are you allowed to let yourself down on an approach which has a lower MDA e.g. Rwy 18 ILS Avalon even though wind conditions depict the opposite runway to have a greater chance to break visual and then climb to the circling minima for a Cat B aircraft 300' above the highest obstacle. Of course then obey the visual maneuvering laws for circling approach Rwy36?
2. How is the highest obstacle determined? Can you use the airport chart to determine that in order to maintain 300’ above the highest obstacle during daylight? If not how do you calculate the highest obstacle ?
Thanks in advance