This is the location of the local database of the simulator. Copy everything except "file://". Open the terminal and type "open /Users/geartotten/Library/Developer/CoreSimulator/Devices/6E509F73-6C1E-4B66-9E5C-2F4FDD3DAA29/data/Containers/Shared/AppGroup/B39F3427-81A5-4FA7-BCE3-F637920BFBA7/".
When the database models have been changed you will need to delete the database file named above. When you build it again you will have to add the aircrafts again.