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Used Aircraft Guide: Cessna 340 Boasts Cabin-Class Comfort and Pleasing Handling

Used Aircraft Guide: Cessna 340 Boasts Cabin-Class Comfort and Pleasing Handling
A Step Up in Capability and Comfort
For pilots seeking to transition from a high-performance single-engine aircraft to a cabin-class piston twin, the Cessna 340 presents a compelling choice. Introduced in 1972 as a more affordable alternative to the larger Cessna 414, the 340 occupies a unique position in Cessna’s lineup, bridging the gap between the smaller 310 and the more substantial 414. Despite its 300-series designation, the 340 shares many components with the 414, including the wing, flaps, ailerons, landing gear, and engines. One of its notable features is the airstair door, which facilitates easier cabin access compared to the ladder entry required by the 310.
Performance-wise, the Cessna 340 offers a blend of speed and efficiency. It is faster than the 414 while maintaining a similar fuel burn, although it carries slightly less fuel capacity. Early models, produced between 1972 and 1975, were equipped with Continental TSIO-520-K engines rated at 285 horsepower. Most of these have since been upgraded to the J or N variants, which deliver 310 horsepower and incorporate intercoolers to enhance efficiency and engine longevity. The N variant, in particular, sustains rated power up to 20,000 feet, enabling higher cruise speeds. In 1976, the aircraft transitioned from two-blade to three-blade McCauley propellers, improving performance and smoothness. The addition of known-icing certification in 1977 further expanded the 340’s operational capabilities in adverse weather conditions.
By 1989, the 340A model featured a maximum ramp weight of 6,025 pounds and a maximum takeoff and landing weight of 5,990 pounds, slightly exceeding the original 340’s limits. The last significant update arrived in 1979 with the introduction of TSIO-520NB engines, which included a heavier crankshaft and other modifications that extended the time between overhauls.
Operational Considerations and Market Context
Despite its many strengths, the Cessna 340 demands careful attention from owners and operators. Its loading limitations and complex fuel system require diligent management to ensure safe and efficient operation. Prospective buyers are advised to conduct thorough pre-purchase inspections and to budget for ongoing maintenance, particularly for aircraft with high-time engines or deferred upkeep. Adequate training is also essential to master the aircraft’s systems and performance characteristics.
Recent developments in the aviation industry have influenced perceptions of mid-sized aircraft reliability. For instance, operational delays caused by software updates in comparable Airbus models, as experienced by American Airlines, have heightened scrutiny across the market. Although these issues do not directly affect the Cessna 340, they may impact buyer confidence and market dynamics for aircraft in this category. In response, manufacturers and sellers of competing models have emphasized their reliability and unique features to reassure customers concerned about potential software or operational disruptions.
The Cessna 340 remains a versatile and impressive aircraft, well-suited for business missions and family travel alike. When properly maintained and operated, it delivers cabin-class comfort and satisfying handling—qualities that continue to appeal to discerning pilots despite evolving market conditions.

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