What the Cessna 500 Citation I Is

The Cessna 500 Citation I is a twin-engine business jet that first flew in 1969 and remained in production until 1980. It seats six passengers plus two crew members and was designed to operate from shorter runways than larger jets, making it useful for regional airports. The aircraft became one of the most widely produced business jets of its era, and many remain in service today.

If you are researching this aircraft because you own one, are considering buying one, or work around aviation operations, understanding its basic specifications and history will help you make informed decisions about maintenance, operation, or value.

Key Takeaways

  • The Citation I carries eight people total (six passengers, two crew) and cruises at roughly 380 miles per hour with a range of about 1,700 nautical miles.
  • Two Pratt & Whitney JT15D turbofan engines power the aircraft, and both engines must be regularly inspected and overhauled according to manufacturer and FAA schedules.
  • Operating costs include fuel, crew, maintenance, hangar storage, and insurance, which vary significantly based on how often the aircraft flies and its condition.
  • The Citation I requires a type-rated pilot — meaning the pilot must hold a specific certification for this aircraft model — and cannot be flown by a general aviation pilot with only a commercial license.

Engine and Performance Specifications

The Citation I is powered by two Pratt & Whitney JT15D turbofan engines, each producing 2,200 pounds of thrust. These engines are known for reliability and fuel efficiency compared to earlier jet engines, which is one reason the Citation I became popular for business travel.

The aircraft has a maximum cruise speed of approximately 380 knots (437 miles per hour) and a service ceiling of 43,000 feet, allowing it to fly above most weather. Its maximum range is roughly 1,700 nautical miles with four passengers and reserves, meaning it can fly from New York to Miami or Chicago to Denver without refueling. Actual range depends on payload, weather, and how the pilot manages fuel consumption.

Takeoff distance is approximately 4,000 feet at sea level under standard conditions, which is significantly shorter than larger jets and one reason the Citation I was marketed as suitable for regional airports. Landing distance is roughly 2,500 feet. These figures change with altitude, temperature, and aircraft weight.

Seating, Cabin, and Interior Layout

The Citation I cabin is pressurized and air-conditioned, with a maximum cabin altitude of 8,000 feet when the aircraft is at 43,000 feet. The fuselage is roughly 43 feet long and 4.5 feet wide, making it narrower than larger business jets but wide enough for passengers to move without ducking.

Seating is typically arranged with two crew seats in the cockpit and six passenger seats in the cabin — usually four in the main cabin facing forward or in a club configuration, plus two additional seats in the rear. The cabin does not have a galley or lavatory, which is standard for jets of this size and era. Baggage capacity is approximately 40 cubic feet, split between a nose compartment and an aft compartment.

Maintenance and Inspection Requirements

Like all aircraft, the Citation I must undergo regular inspections mandated by the FAA and the manufacturer. Condition Inspection (formerly called Annual Inspection) is required every 12 months or every 100 flight hours, whichever comes first. This is a comprehensive inspection of airframe, engines, systems, and components.

Engine overhaul is required at specific intervals set by Pratt & Whitney — typically every 3,500 to 5,000 flight hours depending on the engine variant and how it has been operated. Overhaul is expensive, often $300,000 to $500,000 per engine, and is one of the largest maintenance costs an owner will face. Many owners budget for overhaul by setting aside money per flight hour.

Other scheduled maintenance includes 100-hour inspections (if the aircraft is used for commercial purposes), 500-hour inspections, and various component replacements based on time or cycles. Avionics, hydraulic systems, and environmental systems also require periodic checks. Maintenance costs vary widely based on aircraft condition, how often it flies, and whether major components need replacement.

Pilot Certification and Operating Requirements

Flying a Citation I legally requires a type rating — a specific endorsement on a pilot's commercial or airline transport license that certifies the pilot has trained on and demonstrated competency in that exact aircraft model. A general aviation pilot with only a private or commercial license cannot legally fly a Citation I, even if they have thousands of hours in other aircraft.

Type rating training typically takes 3 to 5 weeks and includes ground school, simulator time, and actual flight training with a may have access to instructor. Training costs range from $15,000 to $25,000 depending on the school and whether the pilot already holds a jet type rating on another aircraft.

The FAA also requires that any pilot operating a turbine-powered aircraft (any jet) hold a current medical certificate, typically a First Class or Second Class medical. Pilots must also maintain currency by flying the aircraft or a simulator regularly — the exact requirements depend on whether the flight is for personal use or commercial charter.

Operating Costs and Ownership Expenses

Operating a Citation I involves several categories of expense. Fuel is the largest variable cost — the aircraft burns roughly 200 to 250 gallons per hour depending on altitude and power settings. At current jet fuel prices, an hour of flight costs $1,200 to $1,600 in fuel alone, though prices fluctuate.

Fixed costs include hangar storage (typically $1,500 to $3,000 per month depending on location), insurance (typically $8,000 to $15,000 per year for hull and liability), and crew salaries if the aircraft is operated commercially or requires full-time crew. Maintenance reserves should be set aside at roughly $1,500 to $2,500 per flight hour to cover inspections, component replacements, and eventual engine overhaul.

Total annual operating cost for an aircraft flying 200 to 300 hours per year typically ranges from $150,000 to $250,000, though this varies significantly based on utilization, location, and the aircraft's condition. Owners who fly fewer hours pay higher per-hour costs because fixed expenses are spread across fewer flight hours.

Market Value and Resale Considerations

Citation I aircraft typically sell for $500,000 to $1.2 million depending on age, total flight hours, condition, avionics, and interior refurbishment. Aircraft with newer glass cockpits (modern digital flight displays) and recently overhauled engines command higher prices. Airframes with high total time and older steam-gauge instruments sell at the lower end.

Resale value is affected by the aircraft's maintenance history — a well-documented logbook with all inspections and overhauls completed on schedule is worth significantly more than an aircraft with gaps or deferred maintenance. The market for used business jets is smaller than the market for general aviation aircraft, so selling may take several months.

Depreciation is not linear. A Citation I that is well-maintained and regularly flown typically holds value better than one that sits idle for long periods, because idle aircraft develop corrosion and component deterioration that are expensive to remedy.

Frequently Asked Questions

Can a Citation I fly across the country without stopping?

Not typically without refueling. The Citation I's range of roughly 1,700 nautical miles means it can fly from the East Coast to the Midwest or from California to Denver, but a coast-to-coast flight requires at least one fuel stop. Larger jets in the Citation family (Citation II and later) have greater range.

How many hours per year does a Citation I need to fly to stay in good condition?

There is no minimum, but aircraft that sit idle for months develop corrosion, seal deterioration, and battery discharge. Most operators recommend at least 50 to 100 flight hours per year to keep systems exercised and seals fresh. Aircraft flown regularly tend to have fewer surprises during inspections.

What is the difference between a Citation I and a Citation II?

The Citation II (introduced in 1977) has more powerful engines, greater range (roughly 2,000 nautical miles), faster cruise speed, and a slightly larger cabin. It also has higher operating costs. The Citation I is lighter and more economical to operate, making it suitable for shorter regional flights.

Do Citation I aircraft have air conditioning?

Yes, the cabin is pressurized and air-conditioned, with environmental controls that allow the crew to set cabin temperature. The system is powered by the engines' bleed air, so cooling is available whenever the engines are running.

What happens if one engine fails during flight?

The Citation I is certified to fly on one engine and can maintain altitude and reach an airport safely. The aircraft will climb more slowly and cruise at a lower altitude, but it is designed to handle single-engine operation. Pilots train extensively on single-engine procedures as part of their type rating.