N81GK

2011 Gulfstream Aerospace GIV-X (G450)

Fixed-wing, multi-engine · serial 4225

Valid registration

Registered with the FAA until Dec 31, 2029.

Aircraft

Make and model: Gulfstream Aerospace GIV-X (G450)
Year built: 2011
Serial number: 4225
Type: Fixed-wing, multi-engine · Land
Engines: 2 × Turbofan · Rolls-Royc TAY 611-8C · 13,850 lb thrust
Seats: 22
Weight class: 20,000 lb and over
Certification: Type certificated · Experimental airworthiness (issued Feb 25, 2026)
Mode S code: AB07A3 (the transponder's ICAO address, used by ADS-B flight trackers)
Registered since: Dec 19, 2013 · last FAA action Sep 22, 2023

What a Gulfstream IV looks likePhoto of a Gulfstream IV, not this aircraft: NOAA; http://www.photolib.noaa.gov/aboutc.html, Public domain, via Wikimedia Commons

Check the official record

This page mirrors the FAA's public registry file dated Oct 30, 2026. The FAA's own N-number inquiry is the official record, with the full owner address and documents.

Where is it now?

The registry doesn't show where an aircraft is flying. Flight trackers do, by tail number or Mode S code AB07A3: FlightAware or ADS-B Exchange. Some owners block tracking through the FAA's privacy programs.

Something wrong?

Owners update their registration with the FAA Aircraft Registry; changes appear here the day after the FAA publishes them. Email admin@whoownsthisplane.com about how this site shows a record.