Assisted by Waldo Waterman, California millionaire Adolf Gilbert Sutro designed and built this machine in San Francisco, and, powered by a Hall-Scott 60 hp engine, it flew quite successfully.
Reportedly it was used to set several international records, including a speed record of 51 mph in 1913.
Engine: Hall-Scott 60 hp
Upper span: 45 ft
Lower span: 33 ft
Length: 25 ft
All Aero 