N400SF

The airframe bearing tail number N400SF is a United States-registered Gulfstream G-IV built in 1987 with manufacturer serial number 1026. The aircraft is owned by CEMR INC, a corporation based in Houston, TX, US, which serves as the operator/home base for this airframe. Its registry reflects corporate ownership rather than individual or fractional operation, and the current condition is reflected in an estimated market valuation of $5,800,000. Maintenance and valuation notes for this airframe are consistent with an older G-IV example powered by Rolls‑Royce Tay engines and employed in executive configurations.

This specific G-IV is certified for 22 seats but is commonly operated in an executive layout, with typical high-end configurations accommodating 14–19 pax in executive fit. The aircraft’s mission profile for its owner-operator in Houston, TX, US typically includes long regional and transcontinental flights within the G-IV’s roughly 4,220 nm range, leveraging a cruise speed near 459 kts and a service ceiling of 45,000 ft. Avionics and interior specification sheets are not published in the provided data; operational considerations emphasize engine maintenance for the twin Rolls‑Royce Tay Mk 610-8 powerplants and cabin reconfiguration options to match charter or corporate transport roles.

The Gulfstream G-IV family occupies the large-cabin, long-range business jet niche introduced in the 1980s, offering transcontinental performance and high cruise speeds for its era. Competing models historically include late-model large-cabin business jets from Bombardier and Dassault, as well as earlier Gulfstream variants; buyer and charter demand for a 1987 G-IV is influenced by airframe age, engine type, maintenance history, and interior refurbishment. Resale and maintenance considerations for this airframe are driven by its age, the presence of Rolls‑Royce Tay Mk 610-8 engines, and the market valuation of $5,800,000, which reflects both utility and the need for ongoing maintenance and potential cabin modernization.