xcitation:
The BEA Interim Report stated:
1.17.1.3 Preparation of flight AF447 on 31 May 2009
Preparation of the flight by the central flight study service
The flight was prepared between 15 h 28 and 18 h 59. Paris Orly was given as the alternate airport at destination. Given the estimated load of 37.8 t, the dossier included a main flight plan at a standard Mach of M 0.82 with an ETF at Bordeaux Mérignac with alternate at Toulouse Blagnac as well as two additional direct flight plans, one at Mach 0.82 and the other at a "slower Mach", i.e. M 0.81. A summary table of the loads offered enabled the crew to make the choice of the definitive flight plan from among these three options.
The full report is at
http://www.bea.aero/docspa/2009/f-cp...90601e1.en.pdf