Known as the Elbridge Engine Company, it was established in Rochester, NY.

-The engines were known by the nickname of "Featherweight", perhaps because of its lightness.

-Already in 1908, they built aviation engines with the two-stroke cycle and made several models.

-The engines were of modular construction, designed by Dr. Greene.

"Elbridge 3-cylinder engine"

-The Type A engine gave 6 - 10 hp, and was water cooled. It had one cylinder, and It is also identified as a two-cylinder at times.

-The Type C had three cylinders, giving 18 -30 hp and it had  227 cu. in. of total displacement.

-Having obtained a nice picture of the "Featherweight" 3-cylinder that gives 45 hp at 1,400 rpm, it has been inserted in this edition. This engine worked on a two-stroke cycle.

-By 1910, it was mounted on several American aircraft like the Curtiss, Martin, Farman-Roehring, Greene, Mathewson, McCallum or the Strikes.

-Several of them for schools.

"Elbridge 3-cylinder Featherweight"

-Interestingly at that time, Elbridge offered unlimited warranty on manufacturing defects.

-And as we can see, it has a nice, clean and robust manufacture.

"Elbridge 4-cylinder Aero Special"

-In 1910, they were put on the market in the form of three-, four-, and six-cylinder engines, for manufacturers of amateur aircraft.

"Silver Wings"

-When the C rotated at 1,400 rpm the power rose to 35 - 45 hp. The four cylinders gave between 40 - 60 hp.

-Another photography is the one of the four-cylinder, obtained in a visit to the NEAM Museum in the United States.

-We can clearly see the modular construction.

-We also see the greasers between each crankshaft neck.

"Featherweight with four cylinders"

-A variant of the four-cylinder was offered to the clientele but with 50 - 80 hp at 2,000 rpm, known as the Special Aero in the Featherweight family.

"Elbridge 6-cylinder engine"

-The 6-cylinder gave 60 - 90 hp, and like the previous ones, it was a "Featherweight".

-Precisely, an Aero Special was installed on the Clyde Cessna plane, the first Cessna of this great brand, with an 80 hp engine, and was known as the "Silver Wings".

-Later and to this day the Cessna Aircraft Company is the largest producer of aircraft of General Aviation. In recent times they are in the aviation of executives, reactors of high performance and benefits.

-Perhaps more than 50% of all private planes over the world are Cessna and the reactor market is covered by the Cessna Citation in 75%, from model 500 to Citation X.

From Appendix 7: The beginnings of Elbridge, located in Rochester, were with industrial, marine and finally aeronautical engines.

-Advertised in a range of 1 to 6 cylinders according to a review made to the newspaper library of PopMechs magazine (PiP).

"Elbridge single-cylinder ad"

-With output for multi-use pulley, air cooled, and a fan-flywheel.

"The Elbridge 3-cylinder marine engine"

-Thanks to the modular design, a varied range of 1, 2, 3, 4 or 6 cylinders could be offered, by simply coupling single-cylinder units. In this marine engine we already see the traces of the aeronautical engine.

-Of course, the air-cooled engine was lightened to the point of being called "Featherweight".

"Advertisement of the aeronautical engine, in its beginnings"

-The one that was later known as "Featherweight" in the beginning was named to a quality. In fact it was called "Aerospecial".

From Appendix 10: Engines of this brand were recognized as being simple, two-stroke and of modular construction from a single 10 hp cylinder.

"Basis for developing other engines"

-In the main text "Featherweight" 3- and 4-cylinder engines are shown.

"The Elbridge 4-cylinder with flywheel"

-The engine with flywheel could be marine, industrial or for an airship.

-The "Aero Special" engine is not mentioned a lot in the main text, now we have more information, from the year 1911.

"Elbridge Aero Special"

"Aero Special drawing"

"The Aero Special is distinguished by details"