![](http://www.alamy.com/thumbs/6/4290D209-8E89-4372-A138-43A729C889DC/T5J09J.jpg)
Airmen of the 121st Maintenance Group perform routine isochronal maintenance on a 121st Air Refueling Wing KC-135 Stratotanker April 23, 2019, at Rickenbacker Air National Guard Base, Ohio. ( Air National Guard photo by Ralph Branson)
Size: 6016px × 2388px
Photo credit: © APFootage / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: air, airman, cfm, guard, international, kc-135, maintainer, national, stratotanker