Chris, Think JagMate was practising 'humor' (hope so anyway). Isn't offensive but 'for-form-and-not-really-meant' banter about navs compulsory on any single-seat aircraft? And while endorsing your comment about Qinetiq, I'd thought that a lot of credit for the Jag's excellence went to people like your recently retired Jupo, certain chaps at FJTS, and some at St Athan and Wyton, but relatively little to BAE, or even to the IPT in its current form....