O'Neal Airport was a public use airport

Airport

An airport is a location where aircraft such as fixed-wing aircraft, helicopters, and blimps take off and land. Aircraft may be stored or maintained at an airport...

 owned by Vincennes University

Vincennes University

Vincennes University is a public university in Vincennes, Indiana, in the United States. Founded in 1801 as Jefferson Academy, VU is the oldest public institution of higher learning in Indiana. Since 1889, VU has been a two-year university, although baccalaureate degrees in seven select areas are...

 and located in Lawrence County, Illinois

Illinois

Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The airport was one nautical mile (1.85 km) west of the central business district

Central business district

A central business district is the commercial and often geographic heart of a city. In North America this part of a city is commonly referred to as "downtown" or "city center"...

 of Vincennes

Vincennes, Indiana

Vincennes is a city in and the county seat of Knox County, Indiana, United States. It is located on the Wabash River in the southwestern part of the state. The population was 18,701 at the 2000 census...

, a city in Knox County

Knox County, Indiana

As of the census of 2000, there were 39,256 people, 15,552 households, and 10,139 families residing in the county. The population density was 76 people per square mile . There were 17,305 housing units at an average density of 34 per square mile...

. The airport is now closed.

Facilities and aircraft

O'Neal Airport covered an area of 250 acres (101.2 ha) at an elevation

Elevation

The elevation of a geographic location is its height above a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface ....

 of 414 feet (126 m) above mean sea level. It had three runway

Runway

According to ICAO a runway is a "defined rectangular area on a land aerodrome prepared for the landing and take-off of aircraft." Runways may be a man-made surface or a natural surface .- Orientation and dimensions :Runways are named by a number between 01 and 36, which is generally one tenth...

s with turf

Grass

Grasses, or more technically graminoids, are monocotyledonous, usually herbaceous plants with narrow leaves growing from the base. They include the "true grasses", of the Poaceae family, as well as the sedges and the rushes . The true grasses include cereals, bamboo and the grasses of lawns ...

 surfaces: 9/27 is 3,450 by 150 feet (1,052 x 46 m); 14/32 is 2,625 by 135 feet (800 x 41 m); 3/21 is 2,350 by 120 feet (716 x 37 m).

For the 12-month period ending August 31, 2004, the airport had 8,000 general aviation

General aviation

General aviation is one of the two categories of civil aviation. It refers to all flights other than military and scheduled airline and regular cargo flights, both private and commercial. General aviation flights range from gliders and powered parachutes to large, non-scheduled cargo jet flights...

 aircraft operations, an average of 21 per day. At that time there were 18 aircraft based at this airport: 67% single-engine

Aircraft engine

An aircraft engine is the component of the propulsion system for an aircraft that generates mechanical power. Aircraft engines are almost always either lightweight piston engines or gas turbines...

, 22% multi-engine, 6% helicopter

Helicopter

A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...

 and 6% ultralight.