N7229U

The airframe bearing tail number N7229U is a Boeing-built jet, a Boeing 720-022 completed in 1962 with manufacturer serial 18082. It is recorded as owned by United Air Lines, a corporation based in the United States, and carries a US registration marking. The airframe’s operational history ties it to mainline airline service under United’s corporate ownership; no alternate owners or transfers are published. Registry actions are limited to its United States registration; valuation and current-condition summaries are Not published.

Configured for a 143-seat layout, this specific Boeing 720-022 would have been arranged for short- to medium-haul mainline passenger service consistent with its range of 3,680 nm and cruise speed of 540 kts. Under United Air Lines operation, typical mission profiles would include domestic trunk routes and transcontinental sectors within the aircraft’s ceiling of 41,000 ft, leveraging its four Pratt & Whitney JT3C-7 powerplants. Cabin avionics and fitment adhere to contemporary airline standards of the era for the model, with maintenance considerations driven by four-engine JT3C turbofan support requirements and airframe commonality with Boeing narrow-body derivatives. Specific unique amenities or modern retrofit details for this airframe are Not published.

The Boeing 720-022 sits within the Boeing 707/720 family niche as a short- to medium-range narrow-body jet derived for higher-frequency trunk routes, offering faster cruise performance and a multi-engine redundancy profile. Competing types during its service period included early derivatives of long-range narrow- and medium-haul jets; buyer and charter demand historically favored mainline carriers for this class. Maintenance and resale considerations for this airframe center on lifecycle support for Pratt & Whitney JT3-series engines, parts commonality with Boeing’s early jet family, and the operational economics of a four-engine design relative to newer twin-engined successors.