I have worked for several JAR operators over the EU and it is incorrect to claim Turkish carriers have such an advantage, or any operator / state. As has been indicated in other posts there are UK, Nordic, German, Irish and Italian companies that I have worked for who all use the 'charter' weights for scheduled flights, and indeed several use the intra-EU weights for intercontinental flights. Whats in the Ops manual Part A is by definition approved by the state, no matter how it disagrees with the text in JAR OPS 1. These operators continue to operate today with this lower weight approved and have not had it removed as appears to have happened in Turkey.