Originally what became the Flight IIA Burke was originally a much more modified design called the Flight III. It had all 4 SPY arrays raised up one deck and the aft VLS moved behind the flight deck. This was deemed too expensive and in the end they just slapped a hangar on the slightly improved Flight II and called it the Flight IIA.No, right now there has only been Flights I, II and IIA and now Flight III in FY-16.