CDFA in the sim
Further discussions with JimL have highlighted some issues that are so dependent on specifics (particular type of approach at a particular airfield) that the wisdom of a general approach must be in question when used as a teaching objective. Instead of my suggested 'published DA +50 ft' during training exercises it may be a wiser choice to use the published DA as is and to include a discussion of the OCL issues in the brief.
The essential as far as I am concerned is that when the helicopter arrives at the DA/MDA we (crew and instructor) all know what to expect and that my explanation to the crew as to why we will fly a CDFA in this way is an intelligent interpretation of the regulatory (and advisory) material available.
I welcome discussion on the subject.
G.