Cessna 401B Businessliner

The Cessna 401B Businessliner, introduced in 1979 by the American manufacturer Cessna Aircraft Company, is the most powerful model in the 400 series of twin‑engine, pressurized business aircraft. Developed from the earlier 401A, the 401B replaced the 300 hp Continental TSIO-520‑B engines with 310 hp Continental TSIO-520‑U engines, delivering higher cruise speeds and improved climb performance. The aircraft features a low‑drag, all‑metal airframe with a 39‑foot wingspan, retractable landing gear, and a spacious, climate‑controlled cabin that can accommodate up to eight passengers or a combination of crew and luggage. Its avionics suite, originally equipped with analog instruments, has been upgraded over the years to modern glass panels, enhancing situational awareness and flight safety. The 401B’s pressurization system allows operation at altitudes up to 30,000 feet, providing smoother rides and fuel‑efficient cruise at 230 knots. Throughout the 1980s and 1990s the Businessliner became a popular choice for corporate flight departments, air‑charter operators, and medical‑evacuation services because of its reliability, relatively low operating costs, and ability to access smaller airports. Today the 401B remains a valued legacy aircraft, illustrating Cessna’s contribution to the evolution of efficient, twin‑engine business aviation.