Ok, In the guise of trying to keep this alive as requested I offer the following:
When discussing the Cat A procedures and what is allowed/not can someone clarify the reason why there are performance charts in Supp 12 that have no corresponding equal in Supp 50?
For weights below 6400kg Supp 12 contains WAT Chart(s) and CTO OEI chart for Heliports - Ground Level/Elevated - Vertical Procedure
However, In Supp 50 there are no corresponding charts for - VERTICAL Procedure Elevated Helideck. Instead you have ones for Confined Area, Off Shore and Clear Area/Cat B.
The CTO OEI chart in Supp 12 could be easily extrapolated from as the lines for the weights are nice even 400kg separations but I suppose its frowned upon if we were to no?
There are no limitations against this procedure. So, how does one figure the CTO distance if you are to depart from a elevated deck at Sea Level that is not an Off Shore rig?
