Nov. 20, 2018 Air Force Secretary announces Tinker home for B-21 Raider maintenance Tinker Air Force Base has been selected as the maintenance hub for the B-21 Raider — a new Air Force bomber expected to be delivered in the mid-2020s.Secretary of the Air Force Heather Wilson announced the decision Nov. 16 in a media opportunity at the base.She said Tinker AFB was selected because