ROYAN
This may be true for other aircraft types, but the Lockheed L1011 A/P in CWS can be used unrestricted for all takeoffs. However, those L1011's that were "reengineered" to be placed on the UK register have a CWS restriction. Also Mmo is .88 for UK registered TriStars, .90 for those on the US (and most other) registers. Same for scarfed pitot tubes and MDLC. The Brits were/are very sensitive to "not invented here".