The Fairchild Aerial Camera Corporation of Farmingdale, Long Island, New York, entered the aircraft engine business in 1925, by forming the Fairchild-Caminez Engine Corporation to develop and produce air-cooled engines for the US Army Air Corps. The company was eventually renamed the Fairchild Engine and Airplane Corp. During the 1930’s they developed the Ranger L-440 (an inverted inline-6) that initially developed 175 HP. This engine was continually refined and ultimately produced 220 HP.

Over 6,500 of these engines were produced and they were used in a large number of different aircraft: Douglas O-14, Fairchild trainers (PT-19, T-19, PT-26), UC-61, UC-86, Northwestern-Waco PG-2, J-4F, Falconar SAL Mustang (a Canadian 2/3 scale P-51D Mustang kit-built), Grumman G-44 Widgeon, and St. Louis PT-LM-4.

The advantages of an inline, inverted engine are that pilot forward visibility in increased and drag is reduced due to the cylinders being in a straight line presenting a reduced frontal area (exposure to the airflow).

Engine Name
Ranger L-440
Manufactured by:Fairchild Engine and Airplane Corp.
Cylinder Configuration
inverted inline
Number of Cylinders
Bore (inches)
Stroke (inches)
Displacement (cubic inches)
Fuel Type
magneto with dual spark ignition
Horsepower (max for T.O.)
175 (for 6-440C-2 version)
Rated RPM
Compression Ratio
6 to 1
Cooling System
Dry Weight (lb)