16 AIRPORT MANAGEMENT
made 270 flights and carried 40,500 pounds of mail. Although several pilots
had been injured, none had been killed. However, the Post Office felt that the
army had not sufficiently met the schedule and had been uncooperative. As a
result, the army contract was cancelled and the Post Office began carrying the
mail on August 12, 1918 (Mola, n.d.).
As the airmail system grew, so did the country’s airports. Indeed, many
communities began constructing airports to allow them a connection to the rest
of the world. Early airfields built by the Post Office typically had a 2,000-foot
by 2,000-foot square to allow for takeoffs and landings in any direction. Land-
ing surfaces were generally of gravel or cinders, as they allowed for adequate
drainage. Airfields generally ranged in size from 70 to 100 acres and consisted
of a hangar, storage of gasoline and oil, a wind indicator, a telephone connec-
tion, and a location marker. By the end of 1920, there were 145 airports owned
and operated by municipalities. Clearly, a national network of airports was
being established (Mola, n.d.).
The first permanent, hard-surfaced runway in the United States, at 1,600
feet long, is thought to have been constructed at Newark, New Jersey, in 1928.
Some airports were being developed by airlines. For instance, Pan American
Airways, flying a Miami–Key West–Havana route twice daily, constructed the
first U.S. land-based international airport: Pan American Field.
Yet as airmail began crossing the country successfully in the mid-1920s, the
owners of various railroads expressed their frustration with the government’s
sponsorship of the airmail system. They felt that railroad profits were being
negatively impacted due to the carriage of mail by air. Congressman Clyde
Kelly of Pennsylvania, chairman of the House Post Office Committee, was a
friend of the railroad industry and on February 2, 1925, sponsored H.R. 7064:
the Contract Air Mail Bill, which, upon enactment, became the Contract Air
Mail Act of 1925, also known as the Kelly Act. The act elevated airmail to
another level by allowing the postmaster general to contract for domestic air-
mail service with commercial air carriers. It also set airmail rates and the level
of cash subsidies to be paid to companies that carried the mail. The Act was
successful in expanding airmail service without undue burden on the taxpay-
ers. Routes created as part of the Act were known as Contract Air Mail routes
or CAM routes (see Figure 1-8). Initial routes were flown between cities such
as New York and Boston, Detroit and Cleveland, and Atlanta and Jackson-
ville. Eventually, a transcontinental route was established. In essence, this Act
effectively established the commercial aviation industry. Indeed, several airlines
that existed well into the twentieth century (such as Trans World Airlines,
Northwest Airlines, and United Airlines) were formed during this time (U.S.
Centennial of Flight Commission, n.d.[a]).
To financially support the airmail service, 80 percent of the airmail stamp
revenues received by the Post Office were to be paid to the airmail carriers.
The number of stamps needed depended on the weight of the mail and the
number of zones the mail had to cross.
1
Due to the structure of the system, air-
1
The country had been divided into three air zones on July 1, 1924.