The cadence of updates for GSX shows no sign of slowing down. Umberto and the FSDT team is absolutely killing it! Version 4.0.0 dropped yesterday, and calling it a major update would be underselling it. This is a generational jump for the add-on, and if you use GSX at all, it promises to be a major expansion on the experience.
We’ve been covering GSX Pro fairly closely this year given the sheer amount of updates. Version 3.8.7 back in April brought the Aviramp staircase, dual-door boarding, and scripting upgrades. 4.0.0 dwarfs that. And it’s free, as always.
A completely new interface
The most immediately visible change is the redesigned menu system. The classic numbered button stack is gone, replaced by two distinct layouts depending on what you’re doing. Fixed-option menus, like service activation or de-icing, now use a 3×3 T9 grid with per-service SVG icons, color-coded state indicators (grey for idle, yellow for waiting, green for active), and inline keycap badges that match the hotkey display on the status page. Variable-length menus, like airport or gate pickers, use a row-list layout with operator livery thumbnails.
The economy system
This is another headline feature, and it’s quite elaborate. GSX now generates itemized HTML invoices for every paid ground service: fuel, catering, pushback, GPU, jetway, stairs, boarding, deboarding, water, lavatory, crew bus, and de-icing. They’re rendered in what FSDreamTeam describes as a NATA-style format, complete with operator letterhead, line items, and taxes.
Those taxes are computed per jurisdiction in real time. At US airports, GSX adds the Federal Fuel Tax ($0.218/gal) plus the relevant state sales tax, mapped from FAA NASR data. EU airports get the destination country’s VAT pulled from a live dataset (downloaded once per session and cached), plus a $0.15/gal environmental surcharge for intra-EU sectors. International fuel sales are exempt, consistent with real-world convention. A 228-country fallback table covers everywhere else.
Catering pricing now ties to SimBrief flight duration. Short hops under 90 minutes get beverage-only billing. Up to 3 hours is a light snack. Hot meals kick in at 3 to 6 hours, and it scales all the way up to a double-meal cycle for anything beyond 12 hours. De-icing fees scale with the aircraft’s footprint area, measured as fuselage length times wingspan in square metres, at a default rate of $3.00/m². A 737 pays a fraction of what a 777 does.
When an invoice is ready, a notification banner appears at the bottom of the panel with a cash register chime. Clicking it opens a viewer inside the panel, with an option to open in your browser or save as PDF. There’s also a full administration menu under Additional Services for browsing past invoices, filtering by tail number, and bulk-deleting old receipts.
The Mercedes Econic fuel truck
GSX Pro also gets a new fuel truck: the Mercedes Econic. FSDreamTeam says the crew animations are fully choreographed: the driver climbs out, walks to the pump panel, opens the cabinet doors and hose support gate, raises the hydraulic platform for high-wing aircraft, attaches the hose, presses the pump panel switch to activate the price LCD, then reverses every step on departure. Sound triggers are bound directly to each animation step, so cab doors, the crane motor, the hose reel, and footsteps all fire in sync with their animations.
Fuel trucks now also feed into the same multi-livery scoring system used by handling and catering vehicles, meaning fueler operators are selected by airport region, airline preference, and stand assignment. The update adds 44 new refueling operators to the roster, including Shell, TotalEnergies, BP, Chevron, Exxon, Q8 Aviation, Pertamina, and many regional operators across Asia, the Middle East, and Latin America.
Available now
GSX Pro 4.0.0 is available now via the FSDreamTeam installer as a free update. The full changelog is on FSDreamTeam’s site.
