Developer Black Square has released its second steam gauge overhaul for Microsoft Flight Simulator, this time for the default Beechcraft King Air 350i.

Previously announced earlier this year, the overhaul includes a completely new interior and panel which retrofits the default cockpit instruments with analogue instruments, and extends its features to a fully overhauled electrical system with every circuit breaker, bus, meter, switch and knob functioning.

Radio and navigational systems from several eras of King Air’s history are included, so simmers can fly without GPS via an original Bendix KNS-80 RNAV system, or with the Garmin GTN 750 (PMS50 or TDS). Also included are swappable radio configurations via several different radio navigation systems such as Collins CTL NAV/COM radios, CTL-62 ADF, GNS 530, IND-42 DME, CTL-92 transponder, APS-65 autopilot, and a Bendix RDR1150XL colour weather radar.

You can purchase Black Square’s Steam Gauge Overhaul from Just Flight for £27.99.



Accurately modelled King Air 350 interior ONLY (uses default exterior model), created from hundreds of reference photos, panoramas and technical documentation100% MSFS native animation code for the smoothest animations and cockpit interactions using either legacy or new cockpit interaction modes4096×4096 (4K) textures are used to produce the highest possible texture clarityPBR (Physically Based Rendering) materials with real-time environment reflections for superb quality and realismDetailed normal mapping for leather, fabric, plastic, stitches, scratches, carpet and tooling marks, resulting in a texture resolution of 10,000 pixels per square inch (90.0kB)Extensive use of the new MSFS decal system for nearly vector-graphic quality of labels, arrows and exterior detail features


Greatly enhanced instrument panel detail compared to default aircraft with every label and marking in its place. If it appears in real aircraft, you can interact with it!Custom-coded steam gauges with low-pass filtering, needle bounce and physics provide ultra-realistic and silky-smooth animations as you’ve never seen beforeCarefully modelled components match the depth and character of the real instrumentation, based on reference photos, schematics and real-world measurements. Unlike other expensive Flight Sim aircraft, every piece of equipment that appears in a Black Square aircraft is modelled after a real piece of aircraft equipment and will behave the same way in its primary functionality.Every knob, switch and button is interactable and implemented, along with its respective electrical circuitry. Turn systems on and off or pull circuit breakers to see the impact it has on your generators and battery via the analogue meters. Many pieces of equipment respond correctly to electrical configurations with warning messages and diagnostic codes.Fully 3D cockpit lighting technology for every gauge and panel, with ambient bounce lighting for a more immersive night-time experience that won’t leave you fumbling around in unrealistically dark spots4096×4096 (4K) PBR textures on the cockpit and panel for crisp instrumentation. Even see the fingerprints on the instrument glass!Hideable yokes, adjustable sun visors and other cockpit aestheticsAll placards and warning labels from the real aircraft represented


Completely interactable electrical system with 12 buses and 165 circuitsSelective state saving for radio selection, radio frequency memory, cabin aesthetics etc.Fully modelled cabin environmental (temperature) system with controls and gaugesCrew/Passenger oxygen system that depletes according to pressure altitude, passenger occupancy and the biological demand of each passenger based on weightElectrical bus-tie, relay, diode, and fault logic, AC inverter logic and bleed air valve logicImproved turbine dynamics (ITT, TRQ, Ng, Fuel Flow, Inertial Separator), battery charging circuity and load sheddingEngine limit excursions decrease engine health and will eventually lead to failureEmergency gear extension hand pump logic and working propeller governor testsDimmable annunciators and backlighting controlled via electrical circuits and radio power, and automatically dimming screens via photocell match real-world equipmentRemote compass control with automatic gyro slaving simulated with electrical systems