AO - Airplane, Observation

Model Designation Manufacturer Engine(s) Crew Other
YAO-1 Mohawk Grumman 2 Lycoming T53-L-3A 2 OF-1, YOV-1A
AO-1AF Mohawk Grumman 2 Lycoming T53-L-3A/7 2 OV-1A
AO-1BF Mohawk Grumman 2 Lycoming T53-L-3A/7 2 OV-1B
AO-1CF Mohawk Grumman 2 Lycoming T53-L-3A 2 OV-1C
XAO-2GI
Goodyear 1 McCulloch 4318-E 2
XAO-3GI
Goodyear 1 Nelson H-63A 1