Senior Airman Alexander Buchanan, an aviation resource management journeyman assigned to the 37th Bomb Squadron, participates in a kaiser sled obstacle during the Firefighter Challenge at Ellsworth Air Force Base, , Oct. 7, 2016. The Kaiser Sled obstacle uses a sledge hammer to simulate chopping a roof with an axe. ( Air Force photo by Airman 1st Class Donald C. Knechtel)

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Size: 3828px × 2817px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 28th, afb, air, bomb, ellsworth, fire, force, obstacle, prevention, week, wing