Home Archive Search Media Media-418493.jpg FRE 8986 IMAGE Download Image By downloading this image, you are agreeing to our Terms and Conditions Three modified B-17 Flying Fortresses used by the Institut Géographique National, France, for aerial surveys, lined up along a runway. Revisions Date: 2 Feb 2015 10:00:13 ContributorAAMChangesAAM ingestSourcesIWM, Roger Freeman Collection