The Cessna 650 Citation III is a twin-engine business jet built for speed and range, not passenger comfort

The Cessna 650 Citation III is a mid-size twin-turbofan jet that Cessna produced from 1979 to 1989. It carries 8 to 10 passengers plus crew, cruises at around 460 knots (530 mph), and has a range of roughly 2,400 nautical miles without refueling. The aircraft is pressurized, meaning it can fly at altitudes above 35,000 feet where the air is too thin to breathe without cabin pressure. It was built to move business travelers and small groups across continents quickly, and it still does that job today in the used market.

If you own one, operate one, or are considering buying one, you need to understand that this is not a straightforward vehicle. The Citation III requires type-rated pilots (pilots trained specifically on this aircraft), regular inspections that cost thousands of dollars, and parts that are expensive and sometimes hard to find. Maintenance is not optional and not cheap. The engine overhaul alone can run six figures. But if you need to move people fast and land at smaller airports that big commercial jets cannot use, the Citation III does that reliably.

Key Takeaways

  • The Citation III is a pressurized twin-engine jet that carries 8 to 10 people and cruises at 460 knots, making it faster than most single-engine planes but smaller than heavy business jets.
  • Both pilots must hold a type rating for the Citation III specifically, and recurrent training is required every 12 months to stay current.
  • Maintenance costs include annual inspections, 100-hour inspections, engine overhauls every 3,500 to 5,000 hours, and avionics upgrades that can each cost tens of thousands of dollars.
  • The airframe and engines have service bulletins and airworthiness directives issued by the FAA that must be completed on a schedule or before flight.
  • Used Citation IIIs are still available but parts availability and maintenance support vary by region and by how recently the aircraft was in active service.

Engine and Performance Specifications

The Citation III is powered by two Garrett TFE731-3B-100S turbofan engines, each producing 3,650 pounds of thrust. These engines are reliable but not interchangeable with engines from other aircraft, so if one fails, you cannot straightforward bolt on a different brand. The engines burn Jet A or Jet A-1 fuel and together consume roughly 200 gallons per hour at cruise power. That fuel burn matters because it determines how far you can fly and how much it costs to operate the aircraft per hour.

Maximum cruise speed is 460 knots true airspeed at 35,000 feet. Service ceiling is 43,000 feet, meaning the aircraft can climb to that altitude and maintain level flight. Maximum range with standard fuel tanks is approximately 2,400 nautical miles, which translates to about 5 hours of flight time. With auxiliary fuel tanks installed, range increases to roughly 2,700 nautical miles. The aircraft can land on runways as short as 4,000 feet, which is why it can use regional airports that larger jets cannot.

Pilot Certification and Training Requirements

Both the pilot in command and the first officer must hold a type rating for the Citation III. A type rating is a specific endorsement on a pilot's commercial or airline transport license that certifies they have trained on that exact aircraft type and understand its systems, performance, and emergency procedures. You cannot legally fly a Citation III with only a general multiengine rating. The initial type-rating course takes 5 to 7 days and includes classroom instruction, simulator training, and at least one flight with an examiner.

After the initial rating is earned, both pilots must complete recurrent training every 12 months. This training covers systems review, emergency procedures, and at least one flight in the aircraft or simulator. Many operators use a flight training device or full-motion simulator for recurrent training because it is less expensive than flying the actual aircraft. The cost of initial type rating training ranges widely depending on the flight school, but budget several thousand dollars. Recurrent training is typically less expensive but still costs hundreds to low thousands of dollars per pilot per year.

Maintenance Schedules and Inspection Requirements

The Citation III is subject to Federal Aviation Administration (FAA) maintenance rules that explore to all turbine-powered aircraft. The most common inspection intervals are the annual inspection (required every 12 months), the 100-hour inspection (required every 100 flight hours), and the progressive inspection (a continuous maintenance program spread across the year). Most Citation III operators use the progressive inspection because it spreads the workload and cost more evenly.

Beyond routine inspections, the aircraft has service bulletins issued by Cessna and airworthiness directives (ADs) issued by the FAA. Service bulletins are recommendations from the manufacturer to improve reliability or safety. Airworthiness directives are mandatory orders that must be completed before the aircraft can fly again. Both must be tracked and completed on schedule. Examples include inspections of the landing gear, fuel system components, and avionics. The cost of completing a single AD can range from a few hundred dollars to tens of thousands, depending on what it requires.

Engine overhaul is the largest single maintenance expense. Each Garrett TFE731 engine has a recommended overhaul interval of 3,500 to 5,000 flight hours, depending on operating conditions and maintenance history. A complete engine overhaul costs between $400,000 and $600,000 per engine, and that is before installation labor. Many operators budget for engine reserves (setting aside money each month for future overhauls) to avoid a sudden catastrophic bill.

Avionics, Systems, and Upgrades

The Citation III was built in the 1980s, and avionics technology has changed dramatically since then. Original equipment included analog instruments and early glass cockpits in later models. Many operators have upgraded to modern glass cockpit systems such as the Garmin G1000 NXi or Rockwell Collins Pro Line Fusion, which integrate navigation, weather, engine monitoring, and autopilot into a unified display. These upgrades improve safety and reduce pilot workload, but they cost $500,000 to $1.5 million depending on the system and installation complexity.

The aircraft also has pressurization, air conditioning, and hydraulic systems that require regular inspection and occasional overhaul. Hydraulic fluid must be sampled and tested for contamination. Pressurization seals and valves wear out and must be replaced. Air conditioning packs can fail and are expensive to repair. None of these systems are straightforward, and all of them require technicians who are trained on the Citation III specifically. A general aircraft mechanic cannot work on these systems without proper training and certification.

Fuel Costs and Operating Expenses

Direct operating cost (DOC) for the Citation III includes fuel, engine reserves, maintenance, crew, and insurance. Fuel burn at cruise is approximately 200 gallons per hour, and Jet A fuel prices vary by location and market conditions. At typical prices, fuel cost alone runs $1,200 to $1,600 per flight hour. Engine reserves (money set aside for future overhauls) add another $300 to $500 per hour. Maintenance and inspections add $200 to $400 per hour depending on the aircraft's condition and age. Crew costs, if you employ pilots, add another $400 to $600 per hour.

Total direct operating cost typically ranges from $2,500 to $3,500 per flight hour, though this varies based on fuel prices, maintenance history, and how aggressively the engines are run. If you own the aircraft, you also pay hangar rent (typically $500 to $2,000 per month depending on location), insurance ($15,000 to $40,000 per year), and periodic capital improvements. These fixed costs do not change whether you fly 100 hours per year or 500 hours per year, so the more you fly, the lower your cost per hour becomes.

Resale Value and Market Availability

Used Citation III aircraft are available on the market, but the supply is limited because Cessna stopped production in 1989. Aircraft age, total flight hours, maintenance history, and avionics upgrades all affect resale value. A well-maintained Citation III with modern avionics and low total time might sell for $3 million to $5 million. An older aircraft with original avionics and higher time might sell for $1.5 million to $2.5 million. Prices fluctuate based on fuel costs, the health of the business aviation market, and the availability of competing aircraft.

Before buying a used Citation III, you should have the aircraft inspected by a may have access to pre-purchase inspection (PPI) team. This inspection takes several days and costs $15,000 to $30,000, but it can reveal hidden problems that would cost far more to fix after purchase. The inspection includes a detailed examination of the airframe, engines, avionics, and all systems. It also includes a test flight to verify performance and handling. Do not skip this step; the cost of the inspection is small compared to the cost of buying an aircraft with undisclosed damage or deferred maintenance.

Frequently Asked Questions

Can a single pilot fly the Citation III?

No. The Citation III is certified for two-pilot operation, meaning both a pilot in command and a first officer must be present during flight. This is a regulatory requirement, not a recommendation. Some smaller jets can be flown single-pilot under certain conditions, but the Citation III cannot.

What is the difference between the Citation III and the Citation X?

The Citation X is a larger, faster, and newer aircraft. It carries more passengers, flies at Mach 0.92 (much faster than the Citation III's 460 knots), and has longer range. The Citation X also costs significantly more to buy and operate. The Citation III is the right choice if you need a mid-size jet; the Citation X is for operators who need speed and transcontinental range.

How often does the airframe need inspection?

The airframe is inspected annually and every 100 flight hours, whichever comes first. Additionally, the FAA issues airworthiness directives that require specific inspections or repairs on a schedule determined by flight hours, calendar time, or cycles (takeoffs and landings). Your maintenance provider tracks all of these and schedules them accordingly.

Can I use a Citation III for charter operations?

Yes, but you must operate under Part 135 of the Federal Aviation Regulations, which is the commercial air taxi and charter rule. This requires additional crew training, insurance, and operational oversight. You also need a Part 135 certificate from the FAA. Operating under Part 135 is more expensive than private ownership but allows you to generate revenue from the aircraft.

What happens if an engine fails during flight?

The Citation III is certified to fly on one engine and return safely to an airport. Both engines must produce enough thrust individually to maintain altitude and climb, even if one fails. Pilots train extensively for single-engine operations in the simulator. If an engine fails, the pilot reduces power on the remaining engine, maintains altitude, and diverts to the nearest suitable airport. This is a serious situation but not an emergency if the pilot responds correctly.