The Beechcraft Super King Air 350 represents a mature yet highly competitive turboprop platform favored by corporate operators, medevac teams, and government fleets. With its robust Pratt & Whitney PT6A-60A engines and proven airframe, the 350 balances performance, comfort, and operating economics.
This article highlights key specifications, operational characteristics, mission flexibility, and ownership considerations for the Super King Air 350.
| Model | Year | Engines | Max. Range (nm) | Typical Cabin Volume (cu ft) |
|---|---|---|---|---|
| Super King Air 350 | 1991–present | 2 × Pratt & Whitney PT6A-60A | 1,833 | 290–340 |
| King Air 300 | 2019–present | 2 × PT6A-42 | 1,500 | 230 |
| King Air 250 | 2010–2021 | 2 × PT6A-42 | 1,439 | 190 |
| Super King Air 250 | 1974–2022 | 2 × PT6A-135/PT6A-140 | 1,522 | 250–305 |
Performance and Range Capabilities
Turboprop Efficiency and Cruise Speed
The Super King Air 350 cruises near 310 knots true airspeed at FL250–FL310, offering a practical compromise between speed and fuel efficiency. Its PT6A-60A engines deliver substantial power for short fields while maintaining predictable handling across a wide envelope.
High-Altitude Operations and Payload
Capable of operating up to FL310, the 350 can avoid turbulence and optimize routing, extending range in favorable conditions. Typical useful loads support mixed passenger and cargo configurations, making it adaptable for charter, corporate, and air taxi roles without sacrificing reserves.
Design and Cabin Customization
Airliner-Inspired Comfort and Visibility
The 350 shares visual and ergonomic traits with the King Air line, featuring large windows, a high wing, and a forgiving handling model. The wing design enhances climb performance and short-field capability, supporting operations from semi-prepared runways.
Adaptable Cabin Layouts and Avionics
With a relatively wide fuselage, the cabin can host multiple seating rows, conference tables, or medical modules depending on operator needs. Modern upgrades include large-area windows, improved insulation, and glass cockpit options that streamline pilot workload on long routes.
Operational Versatility
Corporate and Air Taxi Use
Corporate users value the Super King Air 350 for point-to-point flexibility, avoiding congested hubs while carrying multiple passengers in relative comfort. Air taxi operators leverage its predictable performance on regional routes, where turboprop economics outperform light jets at moderate loads.
Medevac and Mission Configurations
Medevac variants often include side-facing stretcher positions, medical-grade power, and climate control for critical care transport. Government and military customers configure the 350 for surveillance, training, and utility roles, benefiting from robust avionics and cabin modularity in demanding environments.
Maintenance, Reliability, and Lifecycle Value
Service History and Support Network
Decades of production have created a deep parts inventory and widespread technician familiarity, reducing turnaround times for unscheduled maintenance. The PT6A engine line is renowned for reliability, contributing to high dispatch reliability and lower downtime.
Depreciation and Market Liquidity
Older Super King Air 350 airframes maintain value well due to proven longevity and consistent demand from lessors and charter operators. Buyers should weigh airframe hours, corrosion history, and avionics upgrades when evaluating total cost of ownership.
Key Takeaways for Operators
- Range and cabin comfort make the Super King Air 350 suitable for corporate, charter, and medevac roles.
- PT6A engines deliver high reliability and support residual value across the used-aircraft market.
- Glass cockpit upgrades and avionics modernization can reduce pilot workload and improve connectivity.
- Operating economics favor the 350 on regional routes where jet efficiency gains are offset by airport and handling costs.
- Pre-purchase inspections should focus on airframe hours, corrosion, and history of pressurization cycles to protect long-term value.
FAQ
Reader questions
What makes the Super King Air 350 a strong choice for corporate charter?
The 350 offers a wide cabin, predictable handling, and efficient turboprop economics, making it ideal for mid-size groups on regional and interregional routes with short runway access.
How does the 350 compare to the King Air 300 for long-range missions?
The Super King Air 350 provides greater range and cabin volume, while the King Air 300 offers newer avionics and slightly better fuel efficiency at lower altitudes, trading some capability for operational simplicity.
Is the Super King Air 350 suitable for medical evacuation configurations?
Yes, medevac operators frequently deploy the 350 due to its robust pressurization, generous cabin, and ability to carry multiple stretchers with attendant stations and medical power.
What are typical operating costs for a Super King Air 350 on a fractional or charter basis?
Hourly operating costs cover fuel, maintenance reserves, crew, and insurance, often positioning the 350 as a cost-effective option for missions of 1.5–4 hours where light jets would incur higher direct costs.