Performance predictor Dec 1, 2012 10:28:46 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by cuban8 on Dec 1, 2012 10:28:46 GMT www.castlecreations.com/support/flight_calculator.htmlJust came across this - seems very comprehensiveflbeagle.rchomepage.com/software/webocalc_1.5.2/html/webocalc_imperial.htmlAnother good performance predictor