A stretched, pressurized twin-turbine aircraft offering increased seating flexibility, higher gross weight capability, and extended mission reach within the established King Air architecture.
Aircraft Photo Copyright by Cristian Ariel Martinez
The King Air 350 represents a structural and mission expansion beyond the 300-series, emphasizing cabin length and payload flexibility rather than incremental speed increases. It extends the King Air concept into longer-range and higher-capacity operations while preserving the underlying turboprop efficiency that defines the platform. Rather than redefining the aircraft class, the 350 refines it at a larger scale. For operators seeking additional passenger capacity and operational margin without transitioning to jet ownership, the 350 occupies a central role within the turboprop segment.
Developed as a further stretch of the 300-series platform, the 350 incorporated an extended fuselage, increased maximum takeoff weight, and system refinements supporting longer-range operations. These changes expanded cabin accommodations and improved payload distribution while maintaining the aerodynamic framework of earlier stretched models. The aircraft preserved familiar handling characteristics and system architecture, enabling continuity for established King Air operators. Over time, the 350 became widely adopted across corporate, charter, and special-mission applications due to its combination of cabin scale and turbine consistency.
310 kts
1,250 nm
15,000 lbs
Source: Published performance figures from Vref (2021 Vol. 4). Actual performance varies by configuration and operating conditions.
This aircraft is commonly operated by corporate flight departments, charter providers, and special-mission organizations requiring additional cabin capacity and extended range within turboprop economics. It often appeals to buyers seeking increased seating flexibility and baggage volume without absorbing jet-level acquisition and operating costs. Operators aligned with the 350 typically manage regional and cross-country missions where cabin comfort and payload margin influence mission planning. When deployed within structured schedules, the aircraft delivers expanded capability while retaining turboprop operating characteristics.
The original 350 introduced a fuselage stretch over the 300-series, increasing cabin length and enhancing passenger capacity while maintaining the existing aerodynamic framework. Maximum takeoff weight and systems refinements supported extended mission capability and improved payload flexibility. Engine configuration remained aligned with high-output PT6A variants, preserving cruise efficiency within the turboprop class. This configuration established the 350 as a larger-scale evolution of the stretched King Air platform.
The 350i incorporated cabin and avionics refinements emphasizing passenger experience and flight deck modernization rather than structural alteration. Noise reduction initiatives, interior updates, and enhanced environmental systems distinguished the model within the series. Airframe dimensions and fundamental performance parameters remained consistent with the original 350 configuration. These enhancements positioned the 350i as a matured expression of the extended King Air concept.
The 350ER incorporated increased fuel capacity and associated structural accommodations to support extended range missions. Cabin dimensions and baseline engine configuration remained consistent with the standard 350 series. Maximum takeoff weight allowances were adjusted to accommodate the additional fuel load and endurance capability. This configuration positioned the 350ER as a longer-range extension of the stretched King Air platform.
The 350-series operates within a mission envelope shaped by increased cabin length and higher gross weight relative to earlier models. Its advantages are most apparent in payload flexibility and passenger capacity rather than dramatic increases in cruise speed. Real-world performance outcomes vary with loading, altitude selection, and environmental conditions, particularly on longer-range missions. The aircraft performs best when aligned with structured regional and cross-country operations requiring consistent turbine capability and expanded cabin accommodations.
Traditional King Air cockpit architecture in early models, frequently updated through factory and aftermarket avionics programs to support modern navigation and compliance standards.
Twin Pratt & Whitney PT6A engines configured for sustained cruise efficiency within a higher gross weight airframe.
Extensive supplemental type certificate availability including avionics modernization, interior refurbishments, performance enhancements, and mission-specific equipment installations.
An extended, pressurized cabin offering increased passenger seating flexibility and baggage capacity relative to earlier stretched variants.
Supported by a broad global maintenance network with established inspection intervals and significant fleet population across multiple operating sectors.
Well suited for regional and cross-country operations requiring expanded cabin accommodations and range while maintaining turboprop operating economics.
The King Air 350 aligns with operators seeking greater cabin capacity and mission flexibility within the turboprop category. It delivers increased seating volume and payload margin compared to earlier stretched variants while preserving structural familiarity and turbine efficiency. Buyers prioritizing higher cruise speeds may evaluate jet alternatives, though many missions benefit from the 350’s balance of range and operating cost. When deployed within its intended scope, the 350 remains a widely adopted and durable platform in the extended King Air lineage.
Aircraft commonly cross-shopped for similar missions or ownership priorities.
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