CapitollandingWEB-27395.jpg (137.0 kB)
Elmer_A_SperryWEB-27388.jpg (136.3 kB)
First Autopilots Installed on Airplanes.mp4 (13.5 MB)
HighFlight-George5.jpg (296.0 kB)
Lawrence Sperry.docx (18.9 kB)
Lawrence Sperry.pptx (17.5 MB)
Lawrence Sperry_s biplane landing in front of the US Capitol Building, Washington DC.mp4 (1.1 MB)
LawrenceSperry.jpg (508.6 kB)
Lawrence_Sperry_and_Elmer_SperryWEB-27396.jpg (80.4 kB)
Sperry_Messenger_Statistics.jpg (889.6 kB)
Elmer_A_SperryWEB-27388.jpg (136.3 kB)
First Autopilots Installed on Airplanes.mp4 (13.5 MB)
HighFlight-George5.jpg (296.0 kB)
Lawrence Sperry.docx (18.9 kB)
Lawrence Sperry.pptx (17.5 MB)
Lawrence Sperry_s biplane landing in front of the US Capitol Building, Washington DC.mp4 (1.1 MB)
LawrenceSperry.jpg (508.6 kB)
Lawrence_Sperry_and_Elmer_SperryWEB-27396.jpg (80.4 kB)
Sperry_Messenger_Statistics.jpg (889.6 kB)