N45NF

This entry describes a single airframe registered as N45NF, a Cessna 680 Citation Sovereign+ built in 2016 with serial number 680-0556. The aircraft is owned by Noble Research Institute LLC, a nonprofit (LLC) based in Ardmore, OK, US, and is U.S.-registered (US). The airframe is presented in operator service with an estimated market value of $11,000,000, and its configuration and equipment suggest readiness for executive transport missions operated from the owner's home base in Oklahoma. Acquisition and continued operation by Noble Research Institute LLC mark the most recent ownership chapter for this airframe.

The cabin of N45NF is fitted in a nine-passenger executive layout with a forward galley and large aft baggage compartment, accommodating typical business and research-related point-to-point missions. Avionics are provided by Garmin G5000, supporting advanced flight management, integrated displays, and modern navigation and communications capabilities for long-range operations. With a cruise speed of 460 kts and a range of 3,190 nm, the aircraft is capable of transcontinental flights within the continental United States and nonstop missions to much of North America and nearby regions. Maintenance considerations for this airframe center on the twin PW306D engines and the integrated Garmin suite, with upkeep aligned to preserve the aircraft’s estimated valuation and operational availability for the owner's nonprofit missions.

The Cessna 680 Citation Sovereign+ occupies a performance niche offering midsize cabin comfort with near-long-range capability, exemplified by this airframe’s 3,190 nm range and 47,000 ft ceiling. Competing aircraft in the mid-to-super-midsize executive market typically target buyers and charter operators seeking a blend of runway performance, range, and modern avionics such as the Garmin G5000. For prospective buyers or operators, considerations include lifecycle maintenance for the PW306D engines, avionics support and updates, and resale factors tied to certification, total time, and configuration consistency with executive interior expectations.