N81GK

This airframe, registered as N81GK, is a Gulfstream Aerospace GIV-X (G450) built by Gulfstream Aerospace in 2011 with manufacturer serial number 4225. The aircraft is recorded as owned by American Family Mutual Insurance Company, a corporation based in Madison, WI, USA, and is entered on the US civil register. The entry focuses on this specific airframe’s build and corporate ownership; its corporate registration links the aircraft to a Madison, Wisconsin home base and operator environment.

The cabin fit for this airframe reflects the G450’s typical executive arrangements, with multiple floorplan options enabling 12–16 place executive layouts commonly installed; this airframe is noted with a nominal capacity of 22 seats and a cabin length of approximately 45 ft. Onboard service provisions include forward and aft galley positions and forward and aft lavatories as part of the typical cabin configuration. Avionics are installed in the Honeywell Primus Epic / PlaneView suite in the typical G450 fit, supporting the aircraft’s long-range business missions. Operating from a corporate base in Madison, Wisconsin, the airframe’s performance—cruise speed and range—suits transcontinental and North American missions consistent with corporate transport duties.

The Gulfstream GIV-X (G450) platform occupies the long-range large-cabin business jet niche, with this airframe’s 4,350 nm range, 459 kts cruise and 45,000 ft ceiling aligning it with executive transport and corporate shuttle roles. Powered by twin Rolls‑Royce Tay engines producing 13,850 lbf each, the model emphasizes speed and comfort for extended missions. The multipart executive cabin options and Honeywell Primus Epic avionics support high-demand charter and corporate use; resale and maintenance considerations for this airframe follow G450 norms given its 2011 build and corporate ownership profile.