1925

The Edger station was the first steam electric plant produced that could tolerate over 1000 psi of pressure. Initially conceived by Mr. Irving Edwin Moultrop, then Assistant Superintendent, Construction Bureau of the Edison Electric Illuminating Company of Boston. He guided his company and the electric utility industry on a major step forward into the higher-pressure range of 1,200 psi steam.

This site, formerly known as Oakland Municipal Airport, served as the gateway to the Pacific during aviation’s pioneering age of trans-Pacific flight. Among other notable events, Albert Hegenberger and Lester Maitland departed from the airfield on 28 June 1927 on the first flight from the mainland to Hawaii, and Amelia Earhart landed here on 13 January 1935, completing the first-ever solo flight from Hawaii to the mainland.

Lunken Field, now also known as Cincinnati Municipal Lunken Airport, opened in 1925 on ground purchased from the Cincinnati Polo Club. The nation’s largest municipal airport at the time, it attracted several aerospace enterprises, starting with early aviator J. Richard “Dixie” Davis, who established his barnstorming enterprise there in 1925.  In 1928, several other firms established enterprises at the field – each making history.

Aircraft engines, considered unreliable during the first 20 years of aviation due to their need for liquid-cooling, heavy weight and other inconsistencies, were given a revolutionary boost with the development of Pratt & Whitney’s R-1340 Wasp Radial Engine in 1925.

The Travel Air Airplane Manufacturing Company served as the incubator in which Wichita Kansas’ present-day status as the world’s “Air Capital” first developed. The firm was among the first viable airplane manufacturers to be established in Wichita (1925). It also was responsible for four aviation legends firmly establishing themselves in Wichita and forming the nexus between Wichita and world aviation: Walter Beech, Olive Ann Mellor (later Olive Ann Beech), Clyde Cessna, and Lloyd Stearman.

Constructed on 1,040 acres just 10 miles southwest of the city center, the Cleveland Hopkins Airport was the first major airport in the world to provide an integrated system of paved landing surfaces, lighted runways, and a terminal complex consisting of hangars and operating facilities. Overseen by city manager William Hopkins and Major "Jack" Berry - an engineer on loan from the U.S. postal service who eventually became the city's first Airport Commissioner - the project at first was called "Major Berry's Folly" by local residents because of its outlying location.