L - Liaison Aircraft

Model	Designation	Manufacturer	Engine(s)	Crew	Other
L-1	Vigilant	Stinson	1 Lycoming R-680-9	2	O-49
L-1A	Vigilant	Stinson	1 Lycoming R-680-9	2	O-49A
L-1B	Vigilant	Stinson	1 Lycoming R-680-9	2	O-49B
L-1C	Vigilant	Stinson	1 Lycoming R-680-9	2
L-1D	Vigilant	Stinson	1 Lycoming R-680-9	2
L-1E	Vigilant	Stinson	1 Lycoming R-680-9	2
L-1F	Vigilant	Stinson	1 Lycoming R-680-9	2
L-1T	Vigilant	Stinson	1 Lycoming R-680-9	2
L-2	Grasshopper	Taylorcraft	1 Continental O-170-3	2	YO-57, O-57
L-2A	Grasshopper	Taylorcraft	1 Continental O-170-3	2	O-57A
L-2B	Grasshopper	Taylorcraft	1 Continental O-170-3	2
L-2C	Grasshopper	Taylorcraft	1 Continental O-170	2
L-2D	Grasshopper	Taylorcraft	1 Lycoming O-145	2
L-2E	Grasshopper	Taylorcraft	1 Franklin O-150	2
L-2F	Grasshopper	Taylorcraft	1 Lycoming O-145	2	UC-95
L-2G	Grasshopper	Taylorcraft	1 Franklin O-150	2
L-2H	Grasshopper	Taylorcraft	1 Lycoming O-290	2
L-2J	Grasshopper	Taylorcraft	1 Lycoming O-145	2
L-2K	Grasshopper	Taylorcraft	1 Franklin O-150	2
L-2L	Grasshopper	Taylorcraft	1 Franklin O-150	2
L-2M	Grasshopper	Taylorcraft	1 Continental O-170-3	2
L-3	Grasshopper	Aeronca	1 Continental O-170-3	2	YO-58, O-58
L-3A	Grasshopper	Aeronca	1 Lycoming O-145	2	O-58A
L-3B	Grasshopper	Aeronca	1 Continental O-170-3	2	O-58B
L-3C	Grasshopper	Aeronca	1 Continental O-170-3	2
L-3D	Grasshopper	Aeronca	1 Franklin O-175	2
L-3E	Grasshopper	Aeronca	1 Continental O-170	2
L-3F	Grasshopper	Aeronca	1 Continental O-170	2
L-3G	Grasshopper	Aeronca	1 Lycoming O-145	2
L-3H	Grasshopper	Aeronca	1 Lycoming O-145	2
L-3J	Grasshopper	Aeronca	1 Continental O-170	2
L-4	Grasshopper	Piper	1 Continental O-170-3		O-59
L-4A	Grasshopper	Piper	1 Continental O-170-3	2	O-59A
L-4B	Grasshopper	Piper	1 Continental O-170-3	2
L-4C	Grasshopper	Piper	1 Lycoming O-145	2	UC-83A
L-4D	Grasshopper	Piper	1 Franklin O-175	2
L-4E	Grasshopper	Piper	1 Continental A75-9	2	UC-83B
L-4F	Grasshopper	Piper	1 Continental A75-8	2	UC-83
L-4G	Grasshopper	Piper	1 Lycoming O-145	2
L-4H	Grasshopper	Piper	1 Continental O-170-3	2
L-4J	Grasshopper	Piper	1 Continental O-170	2
L-5	Sentinel	Stinson	1 Lycoming O-435-1	2	O-62, OY-1
L-5A	Sentinel	Stinson	1 Lycoming O-435-1	2
L-5B	Sentinel	Stinson	1 Lycoming O-435-1	2	OY-1
L-5C	Sentinel	Stinson	1 Lycoming O-435-1	2
L-5D	Sentinel	Stinson	1 Lycoming O-435-1	2
L-5E	Sentinel	Stinson	1 Lycoming O-435-1	2
XL-5F	Sentinel	Stinson	1 Lycoming O-435-1	2	OY-2
L-5G	Sentinel	Stinson	1 Lycoming O-435-1	2	U-19B
XL-6	Grasshopper	Interstate	1 Franklin O-200-5	2	XO-63
L-6	Grasshopper	Interstate	1 Franklin O-200-5	2
L-7		Universal	1 Franklin O-200-1	2
L-8	Cadet	Interstate	1 Continental O-170	2
L-9A		Stinson	1 Franklin O-200	3	AT-19A
L-9B		Stinson	1 Franklin O-200	3	AT-19B
L-10		Ryan	1 Warner R-500 or R-550 Super Scarab	3
L-11		Bellanca	1 Pratt & Whitney R-1340 Wasp
L-12	Reliant	Stinson	1 Lycoming R-680	4	UC-81, AT-19, RQ-1, XR3Q-1
L-12A	Reliant	Stinson	1 Pratt & Whitney R-985 Wasp Junior	4
XL-13		Stinson/Convair	1 Franklin O-425-5	2
L-13A		Convair	1 Franklin O-425-9	2
L-13B		Convair	1 Franklin O-425-9	2
YL-14		Piper	1 Lycoming O-290-3	3
L-14		Piper	1 Lycoming O-290-3	3
XL-15	Scout	Boeing-Stearman	1 Lycoming O-290
YL-15	Scout	Boeing-Stearman	1 Lycoming O-290
L-15B	Scout	Boeing-Stearman	1 Lycoming O-290		cancelled
L-16A	Champion	Aeronca	1 Continental O-190	1
L-16B	Champion	Aeronca	1 Continental O-205	1
L-17A	Navion	North American	1 Continental O-470-7	2	U-18A
L-17B	Navion	Ryan	1 Continental O-470-7	2	U-18B
L-17C	Navion	Ryan	1 Continental O-470-7	2	U-18C
XL-17D	Navion	Ryan	1 Lycoming O-435-17	2	XL-22A
L-18A		Piper	1 Continental O-205	2
L-18B		Piper	1 Continental O-205	2
L-18C		Piper	1 Continental O-205	2
L-19A	Bird Dog	Cessna	1 Continental O-470-11	1	O-1A, OE-1A
XL-19B	Bird Dog	Cessna	1 Boeing XT50-BO-1
XL-19C	Bird Dog	Cessna	1 Continental XT51-T-1 Artouste
L-19D	Bird Dog	Cessna	1 Continental O-470-15		O-1D
TL-19D	Bird Dog	Cessna	1 Continental O-470-15		TO-1D
L-19E	Bird Dog	Cessna	1 Continental O-470-11		O-1E
L-20A	Beaver	DeHavilland Canada	1 Pratt & Whitney R-985-AN-1/3 Wasp Junior	1	C-127, U-6A
L-20B	Beaver	DeHavilland Canada	1 Pratt & Whitney R-985 Wasp Junior	1
YL-21		Piper	1 Lycoming O-290	2	U-7
L-21A		Piper	1 Lycoming O-290-11	2	U-7
TL-21A		Piper	1 Lycoming O-290-11	2
L-21B		Piper	1 Lycoming O-290	2	U-7A
XL-22A	Navion	Ryan	1 Lycoming O-435-17	2	XL-17D
YL-23	Seminole	Beech	2 Lycoming O-435	2
L-23A	Seminole	Beech	2 Lycoming O-435-17	2	U-8A
L-23B	Seminole	Beech	2 Lycoming O-435-17	2	U-8B
XL-23C	Seminole	Beech	2 Lycoming O-435	2	XU-8C
L-23D	Seminole	Beech	2 Lycoming O-480-1	2	U-8D
RL-23D	Seminole	Beech	2 Lycoming O-480-1	2	RU-8D
L-23E	Seminole	Beech	2 Lycoming GO-480-G2D6	2	U-8E
L-23F	Seminole	Beech	2 Lycoming O-480-3	2	U-8F
YL-24	Courier	Helio	1 Lycoming O-435
XL-25		McDonnell	1 Wright R-975-19 Whirlwind	1	XH-35, XV-1
YL-26		Aero Design	2 Lycoming O-435	2	U-9B
YL-26A		Aero Design	2 Lycoming O-540	2	U-4A
L-26B		Aero Design	2 Lycoming O-480	2	U-4B
L-26C		Aero Design	2 Lycoming O-480	2	U-9C
L-26D		Aero Design	2 Lycoming O-540	2	U-9D
RL-26D		Aero Design	2 Lycoming O-540	2	RU-9D
L-27A		Cessna	2 Continental O-470	2	U-3A
L-28A	Super Courier	Helio	1 Lycoming O-480	1	U-10A