N444QG

This airframe, registered as N444QG, is a 2001-built Gulfstream G-IV with serial number 1453. It is owned by QUAD/AIR LLC, an LLC based in Sussex, Wisconsin, United States, and is registered in the United States. The aircraft is a two‑engine, fixed‑wing multi‑engine business jet that, as of the latest registry information, carries an estimated market value of $5,800,000. Its registry record and ownership are notable for the clear corporate ownership structure and U.S. basing in Sussex, WI.

The cabin is listed on the registry with 22 seats, though common operator configurations for this airframe type are typically an 11–13 passenger executive interior; the registry also notes an executive layout and the presence of a forward galley and aft lavatory. Avionics fitment for this airframe is recorded as Collins Pro Line, with the acknowledgment that various Pro Line/Pro Line II/Pro Line 4 installations are possible depending on retrofit history. Typical missions for this airframe profile include long‑range executive transport consistent with its 4,220 nm range and 459 kts cruise, operated from its U.S. base. Maintenance and outfitting considerations for this specific jet center on engine type and avionics retrofit options, as well as interior reconfiguration between the registry‑listed 22 seats and more common executive layouts.

The Gulfstream G‑IV airframe represented here, built in 2001, sits in the large‑cabin, long‑range business jet sector, offering transcontinental and intercontinental capability reflected by its 4,220 nm range and 45,000 ft ceiling. At an estimated value of $5,800,000, resale and acquisition considerations are influenced by age, engine model (Rolls‑Royce Tay 611-8), avionics configuration, and interior layout; prospective buyers or operators weigh retrofit costs for avionics and cabin modernization against the aircraft’s established performance and range.