Although he experienced some problems with the autopilot , he completed the trip in seven days , 18 hours and 49 minutes .
In order to accomplish this , he equipped the Winnie Mae with a Sperry gyroscope autopilot and a radio direction finder .
Although Sperry experienced some problems with the autopilot , Sperry completed the trip in seven days , 18 hours and 49 minutes .
In order to accomplish this , he equipped the Winnie Mae with a Sperry gyroscope autopilot and a radio direction finder .