N857ST

The airframe bearing tail number N857ST is a 1998-built Gulfstream, serial number 1345, configured as a Gulfstream Aerospace G-IV (G-IV-SP). It is owned by the Seminole Tribe of Florida and is registered in the US, with its operator/home base recorded as Hollywood, FL, US. No public record of prior ownership transfers or notable registry actions is published beyond its current government ownership; condition and formal valuation details are not published. The airframe is part of the Seminole Tribe’s government-operated transport assets and is maintained to support agency mission requirements.

The cabin of this specific G-IV-SP is configured for up to 22 seats, consistent with high-capacity executive or government transport layouts rather than dense commercial seating. Typical mission profiles for a long-range G-IV-SP with a 4,220 nm range and 460 kt cruise speed include transcontinental and international government transport, executive transport, and long-duration repositioning flights from its base in Hollywood, FL, US. Avionics and interior fit can vary by customer; specific avionics suite and custom cabin amenities for N857ST are not published, though maintenance is expected to follow Gulfstream factory schedules and government-operator practices. As a government-owned asset, it likely receives recurring inspections and may be subject to operational availability requirements tied to agency missions.

The Gulfstream Aerospace G-IV (G-IV-SP) family occupies the large-cabin, long-range business jet niche, offering transcontinental and overseas capability driven by twin Rolls-Royce Tay turbofans. With a service ceiling of 45,000 ft and long-range capability, it competes historically with late-model Bombardier and Dassault large-cabin types for government and charter buyers. For operators like the owner of N857ST, maintenance and resale considerations hinge on airframe hours, engine cycles on the Tay 611-8 engines, and adherence to Gulfstream structural inspections; specific resale valuation for this airframe is not published.