Daedal,
I have been told.....
the more detailed entries are generally public use pads. the same level of information is generally available for the PPR pads but it isn't made public excepted to those approved to use the pads.
This applies to YX pads in particular.
Don't just rock up and use someone's pad without approval. you may be removing the helo by truck and be charged with tresspass.
The Eye