Thanks for the replies, 212 man if I understand you correctly the basic WAT graph should guarantee both first and second segment minimum OEI ROC. If this is the case then the forward climb perf graph (fig 4.12 and fig 4.13) should tally with the basic WAT graph and give in excess of minimum required ROC. This is not he case for icing conditions when applying the supplied penalties.
Chopper in ABZ, I am interested in hearing your answer.