Skyward Simulations Updates Citation Sovereign+

Skyward Simulations recently updated its Cessna Citation C680 Sovereign+ for Microsoft Flight Simulator 2024 to v1.0.4, with the update delivering a broad range of improvements across the aircraft.

On the avionics front, Skyward Simulations has introduced improved engine efficiency modelling tied to bleed air settings, enhanced APU behaviour, additional aural alerts, and a variety of refinements to the autothrottle, pressurisation, and CPDLC systems.

Numerous bugs have also been addressed, including issues affecting brake logic, speed protection, standby instruments, external lighting compatibility, and Hoppie integration, while several behind-the-scenes changes improve robustness and data handling.

On the visuals side, new lighting details, improved interior interaction points, VR collision meshes, and refinements to areas such as the lavatory, galley, and engine effects have been introduced. Exterior lighting has also been tweaked, the landing gear geometry adjusted, and several visual quirks corrected.

Skyward Simulations has also further tuned flight dynamics, with changes to spoiler effectiveness, nosewheel steering, rudder authority, and engine temperatures aimed at delivering more accurate handling characteristics.

Elsewhere, the update adds quickview camera presets and brings a handful of quality-of-life improvements to the EFB and passenger systems, including fixes for SimBrief imports and weight loading.

The full changelog can be found below.

You can download the v1.0.4 update now from the MSFS 2024 Marketplace and Orbx Central.

Skyward Simulations Citation Sovereign+ Changelog

Avionics & Systems

• Added efficiency loss to the engines, depending on the bleed air setting
• Added automatic display of ITT digits when the BLD AIR or PRESS SOURCE knob is not NORM
• Added missing right aileron trim indicator
• Added display of fuel flow when combustion is detected during engine start
• Added EGT effects to the APU that is based on electrical and bleed load
• Added “LANDING GEAR,” “NO TAKEOFF,” and “CABIN ALTITUDE” aural alerts
• Added the ability to enter the CRU thrust target when toggling the autothrottle
• Added the P/S HEAT ON caution message that displays when the pitot-static heat has been selected ON for more than 2 minutes while on the ground
• Added a progressive brake application when using a button input to brake
• Refactored rudder & tiller steering input detection (separate rudder and tiller should now work again)
• Fixed response timer expired message from being sent if the recipient was not a CDA
• Fixed the ability to hand over an aircraft without being logged on to a facility
• Fixed aircraft.cfg not displaying type code as C680
• Fixed the bleed air monitor producing an ENGINE COLD caution message prior to when the engine nacelle valve was commanded open
• Fixed Hoppie not parsing CLEARED as PDC
• Fixed MRN in NCDA message
• Fixed the bus tie relay not being powered by the RH EMER BUS
• Fixed the pressurisation controller so that it could use altitude ADC data from GSD3
• Fixed the brake control system from momentarily accepting brake inputs when the parking brake or chocks were engaged
• Fixed the autothrottle speed protection system not re-engaging the autothrottle if it was on prior to protection
• Fixed the MIN/MAX speed protection not providing “disconnected” feedback to the pilot if the AT was off prior to engagement
• Fixed the ADF frequency not changing
• Fixed the takeoff data computer not displaying the correct max temperature for the given conditions
• Fixed elevator trim not displaying the proper sign depending on the position
• Fixed certain CPDLC messages not sending with the correct response attribute
• Fixed the standby airspeed indicator displaying the incorrect overspeed range
• Fixed the summary synopsis from displaying the incorrect state of the CABIN DOOR
• Fixed the autothrottle from not engaging underspeed protection when it was off
• Fixed the baggage heat shutoff valve from erroneously opening when shutting down the airplane
• Fixed the LIGHTS SimVars not being set for external light visibility for programs such as vPilot and ACARS
• Fixed the outflow valves from not initialising as fully open when spawning on the ground
• Fixed Baro STD from ending up in an infinite sync condition
• Fixed an issue where the pressurisation controller would sometimes fail on spawn
• Adjusted the intensity ratio of the ECS sounds with bleed air pressure
• Increased robustness of PDC messages
• Refactored how synoptics fetch data on the PFD and MFD
• FADEC now ignores mixture key events
• CPDLC will now expire previous messages when logging on to a new ATSU
• The pressurisation controller will now skip its self-test when spawning on the runway
• Spoiler axis commands are now limited to deploying only 6 panels when in the air
• Made the auto throttle permanently powered (circuit breaker is ignored)
• Clamped the maximum throttle to -20% when using thrust reversers to negate the forward thrust regime
• Clamped the min & max flight idle N1 to a known value
• Removed ADF2 radio

Model & Textures

• Added missing tail position/navigation light
• Added fuel hose model to fuel truck
• Added collision meshes for VR in interior view
• Added map light emissive to be linked to the correct electrical circuit
• Added bevels to the aft lavatory door for better visual appearance
• Added a click spot to put the carpet panel back for the main landing gear extension handle
• Added another click spot to remove the window sun shades from the cockpit
• Removed flashbang from pulse lights and auxiliary lights
• Decreased nose landing gear height
• Improved lavatory door model
• Reduced the see-through effect when looking from behind the engine
• Reduced the rim size of the main landing gear
• Fixed engine heat blur effect
• Fixed various gaps in the galley
• Increased taxi light brightness and adjusted beam/scatter
• Lucas finally remembered to change it.

Flight Model & Engines

• Added the ability to steer the nose wheel when stopped
• Increased ground spoiler effect
• Reduced spoiler effectiveness when deployed in the air
• Reduced rudder authority
• Reduced steering speeds
• Reduced oil temperature heating time
• Reduced overall oil temperature
• Reduced the nose wheel steering angle
• Fixed the fuel flow controller from fluctuating in some scenarios

Cameras

• Added quickviews

EFB & PAX Displays

• The EFB bezel is no longer an emissive
• Fixed passenger and pilot weights not loading at 210 pounds
• Changed the CPDLC option label from VATSIM to Hoppie
• Fixed simBrief loading when importing a second flight plan