Grosse Ile Municipal Airport
|Grosse Ile Municipal Airport|
|IATA: none – ICAO: KONZ – FAA LID: ONZ|
|Owner||Township of Grosse Ile|
|Serves||Grosse Ile Township, Michigan|
|Elevation AMSL||591 ft / 180 m|
Grosse Ile Municipal Airport (ICAO: KONZ, FAA LID: ONZ) is a public airport located two miles (3 km) south of the central business district of Grosse Ile, in Wayne County, Michigan, United States. It is owned by the Township of Grosse Ile.
In 1929, the airport opened as Naval Reserve Air Base Ile, consisting of a training school, seaplane base and dirigible hangar. In 1930, Thomas Towle used the hangars to build his Towle TA-3 diesel powered amphibian.  Renamed as Naval Air Station Grosse Ile during World War II, the installation operated until 1969, when it was closed and turned over to the Township in 1971 for operation as a general aviation airport. A memorial garden sits directly behind Township Hall, the former Hangar One, to honor all the men and women who served in the armed forces at the Naval Air Station Grosse Ile.
The airport taxiways are now going through a major renovation that should be completed next year.
Facilities and aircraft
Grosse Ile Municipal Airport covers an area of 607 acres (246 ha) which contains two concrete paved runways: 4/22 measuring 4,846 x 100 ft (1,477 x 30 m) and 17/35 measuring 4,425 x 75 ft (1,349 x 23 m). For the 12-month period ending December 31, 2006, the airport had 52,820 general aviation aircraft operations, an average of 144 per day.
The airport is accessible by taking Jefferson Street to the Grosse Ile Parkway and turning right onto Meridian Road. Continue on Meridian Road and turn right onto Groh Road. Watch for the Township Hall sign on the left (about 200-250 yards), which marks the entrance drive to the parking lot. The airport offices are on the second floor.
- FAA Airport Master Record for ONZ ( PDF), effective 2007-12-20
- Great Circle Mapper: KONZ - Grosse Ile, Michigan (Grosse Ile Municipal Airport)
- ROBERT B. MEYER (1964). The First Airplane Diesel Engine: Packard Model DR-980 of 1928. SMITHSONIAN INSTITUTION • NATIONAL AIR MUSEUM WASHINGTON, D.C.