The first delivery in the foreign military sale of 12 A-29 Super Tucano aircraft to Nigeria is not expected until May 2021, one year later than initially scheduled. An Air Force official attributed the delay to contract negotiations that were finalized last December, months after the original deal was signed and implemented in Jan. 2018. "The A-29 production efforts were not able to start until the contract negotiations were completed. The delayed start shifted production line schedules from the fourth...