Liason / Observation / Light plane aircraft locator
- C-2 (Aeronca)
- L-1 Vigilant (Vultee)
- L-2 (Taylorcraft)
- L-3 Grasshopper (Aeronca)
- L-4 Grasshopper (Piper)
- L-5 Sentinel (Stinson)
- L-6 (Interstate)
- L-9 Voyager (Stinson)
- L-13 (Convair)
- L-16 (Aeronca)
- L-18 Grasshopper (Piper)
- L-19 Bird Dog (Cessna)
- L-20 Beaver (De Havilland)
- L-21 Grasshopper (Piper)
- L-23 Seminole (Beech)
- L-26 (Aeronca)
- L-17A Navion (North American)
- L-17B Navion (Ryan)
- L5 Sentinel (Stinson)
- Model 33 Little Dipper (Lockheed)