N815DT

This entry covers airframe N815DT, a Gulfstream G-IV built by Gulfstream Aerospace with manufacturer serial number 1085. The build year is not published in the available data; the current registered owner is AVIATION DEVELOPMENT GROUP LLC, an LLC based in Kalispell, Montana, US. The aircraft is US-registered and is recorded with a 22-seat configuration on the registry; valuation information lists the airframe at $5,800,000. Registration actions have been recorded under the Kalispell, MT owner entry, but no further public ownership timeline or notable incidents are provided.

The cabin is described as a typical executive layout for the Gulfstream G-IV family, with common configurations seating between 12 and 19 passengers; the civil registry for this specific airframe lists 22 seats. Reported avionics fit for this airframe aligns with Collins Pro Line-series equipment or typical Pro Line retrofits commonly installed across the type, reflecting a mission-capable cockpit for long-range executive operations. With a design range of 4,220 nm and a cruise speed near 460 kts, operational profiles for this specific G-IV are consistent with transcontinental and medium long-haul corporate transport, frequently flown from its owner/operator base in Kalispell, MT. Maintenance and cabin refurbishment considerations follow standard Gulfstream G-IV practices, with avionics retrofit options commonly applied to extend avionics capability and resale relevance.

The Gulfstream G-IV family occupies the large-cabin, long-range executive jet niche, offering transcontinental capability and high cruise speeds; this airframe's specifications — notably the 4,220 nm range and 460 kts cruise — are typical for its class. Competing aircraft include other late‑model large-cabin business jets; buyer and charter demand for G‑IV airframes tends to emphasize lifecycle maintenance status, avionics modernization (such as Pro Line upgrades), and interior condition. At an indicated value of $5,800,000, resale considerations for N815DT will hinge on logbook completeness, APU and engine times, and any completed avionics or interior refurbishments.