Early development work on the project proceeded as per schedule: On 5 December 2006, the Preliminary Design Review (PDR) was completed; the Critical Design Review (CDR) was completed on 5 December 2007, at which point the design of the aircraft and all its sub-systems was frozen.
Os primeiros traballos de desenvolvemento do proxecto proseguiron segundo o calendario: o 5 de decembro de 2006 completouse o Exame Preliminar de Deseño (PDR); o Exame Crítico de Deseño (CDR) completouse o 5 de decembro de 2007, momento no cal o deseño da aeronave e de todos os seus subsistemas quedou conxelado.