N135AJ

This article concerns airframe N135AJ, a Gates-built business jet delivered in 1975 bearing serial number 036. The airframe is a member of the Gates Learjet 35 family manufactured by Gates Learjet and is registered in the US. Ownership records show the aircraft held by N135AJ LLC (an LLC based in Englewood, CO, US); the available data do not list prior owners or multiple registry transfers. Registered and operated under the single LLC listed in public summary data, the jet carries an assessed market value of $650,000, a figure that reflects its age, model lineage, and the typical maintenance and avionics update needs of 1970s-era light business jets.

The cabin for this specific airframe is not published in available records; the Learjet 35 family commonly features a typical executive layout with six to eight executive seats, and the summarized data note that specific fit for N135AJ is not published. Operationally the airframe is configured for light business missions consistent with its performance capabilities—short to medium international hops within its 2,857 nm range and high-speed transits at approximately 418 kts to altitudes up to 45,000 ft. Based in Englewood, CO, US by ownership registration, maintenance considerations for this airframe would follow the Learjet 35 type common to 1970s airframes, including focused attention on engine life-limited components, avionics modernization history (not published), and airframe corrosion and fatigue inspections commensurate with its build year of 1975.

The Gates Learjet 35 occupies a performance niche as a light, high-speed business jet with transcontinental capability for its era, driven by twin Garrett TFE731-2-2B turbofan powerplants producing 3,500 lbf each. Competing models historically included other light jets offering similar speed and altitude performance; buyer interest for a 1975 airframe such as N135AJ is typically driven by mission fit, upgrade history, and maintenance status. Resale and operational economics for this airframe are influenced by its assessed value of $650,000, age-related maintenance requirements, and the availability of certified upgrades and parts for the Learjet 35 family.