All Aero

The Harriman Motor Works of South Glastonbury, CT, founded by Frank H. Harriman, produced airplane and marine engines from 1907 until 1916. Perhaps a hundred vertical in-line, water-cooled aircraft engines for four- and six-cylinders and ranging from 30 to 100 hp were produced. Harriman also built several prototype airplanes. He was apparently a more skilled inventor than businessman as the company failed.