Arrow SNC was an Italian aircraft engine manufacturer based in Piacenza. The company specialized in the design and manufacture of two-stroke engines for ultralight and homebuilt aircraft. The company is no longer in business.
The company developed a series of engines that were of a modular design, with the same pistons, cylinders and gearboxes, but using different crankcases. These were assembled into single, twin and four-cylinder engines named for their displacements in cubic centimetres. The single cylinder Arrow 250 has a displacement of and puts out . From the 250 was developed the Arrow 270 AC, which has a displacement of and puts out . The twin cylinder Arrow 500 has a displacement of and puts out , while the four-cylinder Arrow 1000 has a displacement of and puts out .
At one time the company did have a North American distributor in Montreal, Quebec, Canada.