Interstate
Aircraft Locator
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)
