N661US

N661US is a registration marking, also known as an N-number, assigned to an aircraft registered in the United States. This alphanumeric code is displayed on the exterior of the aircraft, typically on the fuselage and wings, and is used for identification purposes by air traffic control, aviation authorities, and others.

N-numbers in the United States are regulated by the Federal Aviation Administration (FAA). The "N" prefix indicates that the aircraft is registered in the United States. The following numbers and letters provide a unique identifier for that specific aircraft. The FAA maintains a registry of all N-numbered aircraft, allowing for tracking of ownership, aircraft type, and other relevant information.

Aircraft registration numbers like N661US are crucial for safety and regulatory compliance within the aviation industry. They allow for the rapid identification of aircraft involved in incidents or accidents, and aid in enforcing aviation regulations.