Designation | Nickname | Primary role |
---|---|---|
L-6 | Cadet  | U.S. Air Force Liaison (1942-1962) |
L-8 | Cadet  | U.S. Air Force Liaison (1942-1962) |
O-63 | Grasshopper  | U.S. Air Force Observation (1924-1942) |
TD2R |   | U.S. Navy / Marines Target Drone (1942-1946) |
TD3R |   | U.S. Navy / Marines Target Drone (1942-1946) |
TDR |   | U.S. Navy / Marines Target Drone (1942-1946) |