
Book a Citation SII
Citation SII
Midsize jet
The Citation S/II (Super II) is the aerodynamic leader, engineered with a supercritical wing for cruise speeds exceeding 400 knots and extended range. It pairs jet speed and single-pilot efficiency with the Citation's spacious, proven cabin for superior executive utility across mid-range missions.

A Leap in Aerodynamics and High-Altitude Performance
Overview
The Cessna Citation S/II (Model S550) was certified in July 1984, delivering a comprehensive aerodynamic overhaul to the Citation II platform. The "S" designation stands for Super, highlighting the core upgrade: the incorporation of a supercritical wing airfoil (derived from the Citation III program). This advanced wing profile, along with optimized engine nacelles, drastically reduces high-speed drag, allowing the S/II to reach maximum cruise speeds exceeding 400 nots, a significant performance boost. The aircraft is powered by upgraded Pratt & Whitney Canada JT15D-4B engines, which provide more effective thrust at higher altitudes for enhanced long-range efficiency. Furthermore, the S/II introduced a superior TKS fluid de-icing system (replacing the older pneumatic boots), offering continuous, effective ice protection and enhanced safety. The aerodynamic gains, coupled with increased fuel capacity, boost the maximum range to nearly 2,000 nautical miles. Crucially, the S/II was certified under the more rigorous FAR Part 25 standards while retaining the efficient single-pilot capability, offering best-in-class safety and speed.
Speed Meets Space: The Utilitarian Cabin
Luxury interior
The Citation S/II pairs its high-speed aerodynamic profile with the generous, time-tested cabin of the Citation II series. Designed for productivity and comfort, the layout prioritizes utility, offering a large volume, ample natural light, and essential executive amenities for efficient, mid-range corporate travel.
Class-Leading Passenger Capacity
The S/II allows to comfortably accommodate up to 8 passengers in a full executive club seating arrangement. This superior capacity ensures the jet meets the needs of larger teams and families while maintaining its high cruise speeds and operational efficiency.
Business-Ready Amenities and Privacy
The executive interior is designed for functionality, featuring comfortable club seating with fold-out work tables and a refreshment center for enhanced productivity. It includes an enclosed aft lavatory, ensuring privacy and comfort.
Exceptional Luggage Volume
The Citation S/II provides an impressive total baggage volume making it one of the most generous storage capacities. This ample space, split between nose and aft compartments, easily fits luggage and equipment for every passenger.
Key Specifications & Performance
Technical Characteristics
The Citation S/II delivers a significant leap in speed and efficiency, maximizing utility for high-speed, mid-range corporate travel.
Performance
Maximum Cruise Speed
402 knots (745 km/h)
Maximum Range
1,998 nautical miles (3,700 km)
Service Ceiling
43,000 feet (13,106 m)
Takeoff Distance
3,240 feet (988 m)
Landing Distance
2,247 feet (685 m)
Rate of Climb
3,000 feet/minute (914 meters/minute)
Capacity
Passengers
7–8 (Typical Executive Configuration)
Crew
2 (Pilot & Co-Pilot). Single-Pilot Capable
Cabin Volume
292 cubic feet (8.3 cubic meters)
Cabin Dimensions
Length: 15,9 ft (4,8 m)
Width: 4.10 ft (1.47 m)
Height: 4.8 ft (1.42 m)
Fuel & Engines
Fuel Capacity
5,740 pounds (2,604 kg)
Engines
2 x Pratt & Whitney Canada JT15D-4B
Twin turbofans optimized for high-altitude/high-speed performance, complementing the supercritical wing design for maximum efficiency.
Thrust (each)
2,500 pounds of thrust (11.1 kN)
Cargo & Access
Cargo Door Size
77 cubic feet (2.18 cubic meters)
Baggage Compartment
Approximately 6–7 standard suitcases or pieces of luggage.
Excellent capacity split between a dedicated aft compartment (often heated) and a forward nose compartment (for lighter items).
Aerodynamic Excellence and All-Weather Assurance
Key feature
The Citation S/II represents a total re-engineering of the Citation II platform. These two core features (a revolutionary aerodynamic profile and an advanced safety system) deliver a level of speed, range, and operational reliability that sets it far apart from its predecessors and many light jet peers.

The Supercritical Wing Advantage
Performance & Technical Excellence
The "S" in Citation S/II is defined by the supercritical wing airfoil, a sophisticated aerodynamic feature derived from the Citation III program. This advanced profile is specifically engineered to reduce drag significantly at high cruise speeds and high altitudes. This design leap allows the S/II to reach maximum cruise speeds exceeding 400 knots (a massive jump from the Citation II's performance) and, combined with increased fuel capacity, extends the max range to nearly 2,000 nautical miles. For the customer, this means vastly reduced total travel times and the ability to complete demanding mid-range missions non-stop. Chartering the S/II ensures you receive a high-speed, long-range capability that is comparable to newer jets, offering true efficiency across your entire flight schedule.

The Advanced TKS Safety System
Safety & Operational Advantage
The Citation S/II provides a superior level of all-weather operational assurance by upgrading its de-icing system. It replaced the older, intermittent pneumatic de-icing boots used on previous models with the advanced TKS Fluid De-Icing System (often referred to as the "weeping wing"). This technology uses small laser-drilled panels that distribute glycol-based fluid across the wing and tail leading edges. The fluid creates a continuous layer of anti-ice protection, actively preventing ice from forming, rather than waiting to break it off after accumulation. This continuous protection is a significant safety and reliability enhancement, ensuring the wing remains aerodynamically clean at all times and dramatically increasing dispatch reliability during cold weather or light-icing conditions, giving passengers maximum peace of mind.
Alternative Jet Options
Aircraft
Citation IISP
Midsize jet
Flying in a Citation IISP
The Citation II/SP is the cost-efficiency leader. Certified for one pilot, it seats 8 passengers while providing high reliability and low operating costs for essential business travel.
Citation Ultra
Midsize jet
Flying in a Citation Ultra
The Citation Ultra combines its class-leading, spacious 17-foot cabin with the sophisticated cockpit. This pairing delivers superior safety, faster climbs, and high operational value for executive charter missions.
Citation V
Midsize jet
Flying in a Citation V
The Citation V set the standard for midsize jet comfort. It offers an exceptionally spacious cabin for up to eight passengers, ensuring a relaxing and productive flight.