ShareVapor trails from Boeing B-17 Flying Fortresses (World War 2)
Sub-zero temperatures at high altitudes cause exhaust gases to condense leaving long vapor trails across the sky. These Eighth Air Force B-17s were flying towards communication targets from their base in England.
236 views. Added 19 Aug 2008 | Add a comment | Link & Embed
Located in WWII US Air Force Photos » Europe » England » Aircraft » Vapor Trails » [None Entered] » Page 21
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