The Jacobson Databases

These documents were compiled by Randall S. Jacobson, Ph.D., for the Earhart Project and are © Randall S. Jacobson and TIGHAR. They are published here for the use of researchers and other interested parties. No permission to copy, publish, or distribute is given or implied.

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Navigation Logs:
Explanation Colorado Cushing Drayton
Honolulu Itasca Lamson Lexington
Ontario PBY Swan  
Radio Logs:
Explanations Procedures Call Signs
Sources Z-Codes July 1
July 2 July 3 Other
Radio Messages:
Explanations Call Signs Sources Time Zones Weather Codes
Group 1 Group 2 Group 3 Group 4 Group 5
Group 6 Group 7 Group 8 Group 9 Group 10
Group 11 Group 12 Group 13    
Weather Reports:
Explanations Reports

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