Also known as "The Hamiltonian".

-The company name comes from Charles K. Hamilton from the state of NY.

-Several engines are known although it is supposed to be modifications of other existing ones.

-In 1909, there was a water-cooled, four-cylinder, in-line engine that gave 60 hp.

-In 1910, there was the Christie giving 110 hp with 8 cylinders in V. It was water cooled as well.

-There is an engine that is recognized as a Curtiss, modified by Ch. Hamilton.

“Hamiltonian”

-The one in the illustration is clearly a Hall Scott engine offered as Hamiltonian. Therefore it has been modified by Charles.

-Two other engines, known as "The Hamiltonian Intercity Flyer", with eight cylinders in V gave 60 HP. It weighed 235 lbs, completely with carburetor, magneto and water pump.

-The "The Hamiltonian Racer", also had 8 cylinders in V and gave 80 hp, weighing 250 Lbs.

From Appendix 6: Curious photograph from the year 1909 in which Charles K. Hamilton appears (seated) showing his engine to Captain Wild. This was the engine for the Eagle airship.

-Precisely the engine has the traces, but it seems somewhat larger than those of the Henderson motorcycle engines.

-It was Hamilton's habit to modify existing engines, (see)

"Photograph of the Eagle engine" (PeT=ps)