Thank you, useful document. Its the factors on page 49 (same as the old safety sense leaflet) that I am trying to reconcile with Class B in EU-OPS, one would have thought they would be the same. The 'general safety factor' on take-off of 1.33 is not something I recognise and some of the surface factors are different. It seems odd to teach one set of safety factors in PPL then another set at CPL/ATPL. Will research further