N401SF

This article concerns the specific airframe bearing tail number N401SF, a 2004-built Learjet 45XR with manufacturer serial 45-247. The airframe is registered in the United States and is owned by the corporation RAPID RESPONSE LLC, based in Lafayette, LA, United States; current ownership is recorded to this Lafayette-based entity. There are no additional published registry actions or operator changes in the provided data beyond the stated corporate ownership. The aircraft carries an estimated market valuation of $2,850,000, reflecting its age, configuration, and typical equipment fit.

The subject cabin is fitted in a double-club executive layout with eight primary cabin seats and a belted lavatory seat option reported for up to nine occupants; some listings indicate capability for a twelve-seat configuration, reflecting flexible interior arrangements on this serial. Avionics aboard this airframe follow the typical Learjet 45XR fit with Honeywell Primus 1000 and dual UNS-1EW flight management systems. Based on its owner and registry, the aircraft would typically operate from bases in the continental United States, supporting short- to mid-range executive transport, on-demand charter, or dedicated corporate response missions from its Lafayette, Louisiana home base. Maintenance and operational considerations for this airframe align with mid-2000s Learjet 45XR practices, including attention to TFE731 series engine lifecycle and avionics support.

The Learjet 45XR family occupies a light-cabin, high-performance niche with transcontinental capability for its class, offering a blend of cruise speed (about 436 kts) and a service ceiling of 51,000 ft. Competing models historically include late-model light-to-midsize business jets with similar ranges, where buyers seek a combination of speed, runway performance, and lower acquisition cost compared to larger cabin types. For this specific 2004 serial, resale and charter demand will hinge on interior configuration flexibility (8–12 seats reported), engine TBO status for the Honeywell TFE731-20BR pair, and the documented avionics fit, all factors that influence maintenance planning and marketability at the stated valuation.