91st Observation Squadron, 1926 thejivebombers Army Air Corps & Army Air Service October 8, 2018April 20, 2020 1 Minute Aircraft is a Douglas O-2 which was flown by the 91st from 1926-30. Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading... Related Published by thejivebombers View all posts by thejivebombers Published October 8, 2018April 20, 2020