Beechcraft King Air 350i – The History and Evolution of Beechcraft’s Twin-Turboprop Aircraft Range

Beechcraft King Air 350i – The History and Evolution of Beechcraft’s Twin-Turboprop Aircraft Range:

The Beechcraft Super King Air series of twin-turboprop aircraft is part of Beechcraft’s twin-turboprop aircraft range. The “Super King Air” name was withdrawn in 1996. The Model 200 and Model 300 series were originally marketed as the “Super King Air” family. Together with the King Air Model 90 and 100 series, they compose the King Airline.

The 250 (design B200GT) and 350i (B300) versions are currently available from Beechcraft. Government, military, and commercial customers can order the 350ER (B300CER) for special missions such as aerial surveys, air ambulance, flight inspections, and surveillance. The Model B200 King Air was the basis for the Beechcraft 1900 regional airliner.

Since 1974, the Super King Air series has been in continuous production, the longest of any civilian turboprop aircraft in its class. It outlasted all of its predecessors; the Piaggio P.180 Avanti is the only other pressurized multi-engine turboprop utility aircraft now in production.

The King Air 350i:

Beechcraft unveiled improved versions of the B300 series, the King Air 350i, in October 2008, featuring passenger interior modifications. According to the manufacturer, the noise level and overall comfort of the King Air 350i, 350iER, 350iC, and 350iCER, are now comparable to light jets. The B300 series’ cabin has been modified with controllers in the passenger seat armrests that operate an iPod dock and a high-definition video monitor and dim the LED lighting and darkening the windows. Universal Serial Bus (USB) ports, AC electrical sockets, and fold-out tables are also available for each of the eight passengers. The first deliveries were made in December 2009.

Due to improved insulation, the cabin sound level is lowered by 4 decibels to 78 decibels. In less than ten years, more than 440 350i have been delivered. It is 10-15 minutes slower than a jet on a one-hour journey while burning 700–900 lb (320–410 kg) less fuel. At FL350, it cruises at 292 knots (541 km/h) TAS while consuming 503 lb (228 kg) per hour, while at FL240, it can attain 312 knots (578 km/h) TAS. The $1.8 million Blackhawk PT6A-67A modification provides a TAS of 68 knots (126 km/h) and a 60 per cent faster climb time.

Direct running costs are roughly $1,300-1,500 per hour, with an average fuel flow of 900 lb (410 kg) per hour. Engine overhauls cost $500,000-550,000 at 3,600 hours, but second overhauls can cost $800,000-1.2 million. Second-hand aircraft ranged in price from $3 million for early versions to more than $4 million for late models by September 2019. In 2019, the King Air 350i cost $7.755 million dollars, while the King Air 350iER cost $8.8 million dollars.

Modification and Upgrade Programs:

For the 200 and 300 Series King Airs, a variety of aftermarket modifications and improvements are available. Enhanced Performance Leading Edges, Nacelle Wing Lockers, Ram Air Recovery System, Quiet Turbofan Propellers, High Flotation Gear Doors, and Dual Aft Body Strakes are all available from Raisbeck Engineering in Seattle, WA. A Wing Front Spar Reinforcement Kit and a modification to replace the electro-mechanical landing gear retraction system of early-build aircraft with an electro-hydraulic system are available from one supplier.

Another company offers a modification for the entire King Airline that entails reworking and extending the entire nose to accommodate a baggage compartment and the avionics normally found in the noses of King Air aircraft. Another company offers winglets for the 200 and other 300 series King Airs that are similar to those found on the B300. Textron Aviation introduced a redesigned nose in November 2019 that can accommodate 12 cu.ft (0.34 m3) or 250 lb (113 kg) of cargo or aircraft equipment.

In B200 King Airs, a modification to insert a forward-looking infrared camera in an expanded nose is available. Another option is to convert regular 200 Series King Airs to configurations equal to the Model 1300 or Model 200C and B200C King Airs.

Operational History:

On January 24, 2005, the 6,000th King Air was delivered. Australia’s Royal Flying Doctor Service (RFDS) operates 34 King Air B200/B200C and B300C aircraft.

Others are utilized by the Missionary Aviation Fellowship and associated groups. Retired military King Airs have entered civil service with US law enforcement and other government agencies such as State Police and Sheriff Departments.

The strangely designed Beechcraft Starship was supposed to replace it, but only 53 were made, with production stopping in 1995, while the King Air continues to sell.

During its 40-year production run, the King Air 200 series has delivered over 1,800 aircraft. A used 2011 model King Air 250 was worth US$3 million in early 2017, and late 2015 to early 2016 model was worth US$5 million, with an estimated annual usage of 240 hours and 216 cycles, while a King Air 350i is worth US$800,000 to US$1 million more.


Over 7,300 King Airs and Super King Airs have been delivered by May 2018, surpassing 60 million flight hours in the commercial, military, and special mission missions, making them the most widely used turboprop business aircraft in the world. They have a presence in over 94 countries. The 200/300 series family has accounted for over 53% of all aircraft delivered.

The Super King Air 350i in Flight Simulator:

The Beechcraft King Air is the world’s most popular business turboprop, a title it has earned through years of steady, dependable performance and constant refinement. The business launched the larger “Super King Air” a decade after the first prototype took Flight in 1963, and though the “super” has since been omitted from the name, the branch has the longest production run of any commercial turboprop aircraft in its class.

Beechcraft launched the King Air 350i in 2008, expanding on a long history. The model features an upgraded avionics suite, increased passenger comfort, and reduced internal noise and vibration, making it a viable competitor to smaller jets.

The plane’s powerful but economical Pratt & Whitney Canada PT6A-60A engines, along with dynamically balanced four-blade Hartzell propellers, result in exceptional cargo capacity, extended range, and the most fuel-efficient aircraft on the market.

The 350i can take off and land at airports of nearly any size, thanks to its superb short runway performance and large, durable landing gear – a vital advantage in today’s world where business needs can take you everywhere.


I hope you liked this article about the King Air 350i. I’ve tried to give you the most useful information about this aircraft so you’ll have enough data to make a decision about it. What’s your experience with Kind Air 350i? Feel free to share it as well as your opinion in the comments below; I would be happy to read and come back to you.

See you soon again!

6 thoughts on “Beechcraft King Air 350i – The History and Evolution of Beechcraft’s Twin-Turboprop Aircraft Range

  1. I would like to try the “Super King Air” in simulation. I have always been aware that their cargo capacity is good!But their fuel-efficiency is one of the things that has impressed me the most. Now that simulation is available, I can not miss the opportunity to tour around with this plane!

    1. I have been using Beechcraft Kingair in Flight Simulator X and the experience was great. You should try it.

  2. This looks like one heck of an aircraft. I love simulator games and how they place you in that world where you can get a sense of what it’s like to be the pilot of the aircraft. I would just like to ask have you used this aircraft in a simulator? If so how did you find it?

  3. I have never tried a flight simulator.  This sounds like it could be a lot of fun.  Although, I think the idea of it being a simulator, and not the real thing, is what makes it appealing.  I am not a fan of smaller planes after having travelled in them in my youth but it would be great to see what upgrades have been made over the years.

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