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Citation Sovereign+

Skyward Simulations

SKYWARDC680CITATIONSOVEREIGNCESSNA

3.3/5 (10)


This high-fidelity simulation of the Citation Sovereign+ emphasizes deep system fidelity, flight model accuracy, and real-world behavior. Developed through extensive iterations and continuous refinement of avionics, custom sounds, and flight dynamics, it has been rigorously tested by a pool consisting of over 80% real-world pilots—many flying the 680 type daily.

The Sovereign+ is a mid-size business jet engineered for high-altitude cruise, rapid climb, and short-field flexibility. In this simulation, dual-FADEC logic, Garmin CPDLC/ACARS datalink, and board-level systems are accurately modeled from OEM documentation and pilot consultation.

Model & Cockpit

  • High-detail exterior and interior models with refined geometry and optimized LODs
  • Fully interactive flight deck: functional panels, switches, knobs, and circuit interfaces
  • Garmin G5000 avionics suite with custom PFD, MFD, and GTC plugins
  • System synoptics for electrical, fuel, and hydraulic systems
  • Dynamic and static registration support, interior/exterior lighting, and optional ground equipment

Electrical System

  • High-fidelity architecture: ~60 buses, 60 relays, transformers, 600 circuits, and 100 diodes
  • Simulated PCB logic boards processing inputs and outputs across aircraft systems
  • Dual 28V TRUs operating with left/right alternators during generator failure
  • Dual 24V 44Ah NiCd main batteries (with hot buses), 24V standby battery, and 4 emergency lighting batteries
  • Dual PMAs powering dual-channel FADEC; dual 28V DC 100A engine-driven generators and GPU support

FADEC & Engines

  • Dynamic FADEC control with TO, MCT, CRU, T/R, and APR modes
  • Dual-channel command logic driven by WOW, bleed-air control boards, and electrical power states
  • Real-world N1, N2, ITT, and fuel flow relationships across climb, cruise, and descent envelopes
  • Accurate takeoff, climb, and cruise thrust limits (anti-ice on/off)

Flight Model & Systems

  • Tuned lift/drag polar for realistic climb speeds, cruise fuel burn, and descent profiles
  • Comprehensive hydraulic simulation: gear, brakes, speedbrakes, spoilers, thrust reversers, and NWS
  • Parking brake with toggleable realistic/unrealistic modes
  • Fuel system with crossfeed capability, boost pump logic, and accurate multi-tank modeling
  • Pneumatics & Environmental: OEM-spec bleed air control logic (engine/APU), environmental control, and cabin pressurization
  • Advanced anti-ice: wing, engine, stab, and windshield coverage with temperature monitoring and rate-based valve timing

Gear & Emergencies

  • Hydraulic gear operation with gravity-assisted emergency extension and pneumatic blowdown
  • Mechanical uplock release mechanisms and aerodynamic effects during abnormal extensions
  • Nitrogen emergency brake simulation

Avionics, Datalink & CAS

  • Garmin G5000 with complete system interconnectivity
  • Platform-agnostic CPDLC & ACARS datalink (PC only), D-ATIS (FAA/VATSIM), and SimBrief NOTAMs
  • Logic-driven CAS: caution, warning, and advisory messages tied to real bus states and inhibit modes (takeoff, landing, engine shutdown, bus fail)

Electronic Flight Bag (EFB)

  • SimBrief flight plan, fuel, and weather import
  • Weight & balance with interactive payload management, ground services, and aircraft state control
  • System diagnostics pages (electrical, oxygen, airframe configuration)
  • Integrated Navigraph charts and flight planning tools
  • Over 300 AFM-referenced normal, abnormal, and emergency checklists

Audio

  • Authentic soundset recorded from the real Sovereign+ by Boris Audioworks
  • High-definition environmental audio, interactive cockpit click sounds, and exterior volume controls

Note: The advanced PCB-level electrical architecture is exclusive to Microsoft Flight Simulator 2024 due to new sim engine capabilities. Your purchase includes a free upgrade to the 2024 version.

The C680 Sovereign+ is an advanced, twin-engine, super mid-size business jet. Crewed by two, it can accommodate up to 12 passengers, although typical configurations seat up to eight in its main cabin. The original airframe, the Sovereign, took its maiden flight in February of 2002 and entered service in 2004. The Sovereign+ is an upgraded variant comprising improved powerplants, a more robust flight deck, and winglets to improve operational efficiency by mitigating drag-inducing vortex generation. The Sovereign+ took its first flight in April of 2013 and began commercial operations in December of 2013. A total of 94 Sovereign+ airframes were manufactured.

The C680 Sovereign+ is renowned for its versatility, performance, and passenger comforts. Its spacious interior can accommodate several customized layouts that are typical of heavy jet platforms. Its cockpit includes next-generation avionics such as color moving maps and synthetic vision. Its flight control suite boasts several automated features, including flap adjustment, that maximize pilot efficacy. Its powerplants optimize flight efficiency and aircraft range.

The C680 Sovereign+ measures 63 feet, 6 inches in length, stands 20 feet, 4 inches tall, and has a wingspan of 72 feet, 4 inches. It is powered by two fuselage-mounted high efficiency turbofan engines that each generate up to 5,900 pounds of thrust. The jet has a maximum range of 3,532 miles, a service ceiling of 47,000 feet above sea level, and a maximum climb rate of 4,080 feet per minute. The Sovereign+ cruises at 447 miles per hour and has a top speed of 529 mph.

VERSION 1.0.7 RELEASED OCTOBER 22, 2026