The A2A Accu-Sim Legacy RG550 is an upcoming high-performance experimental aircraft for Microsoft Flight Simulator. Based on the Lancair Legacy RG550, the project marks A2A Simulations' first venture into the experimental kit-built aircraft category while continuing the company's focus on highly realistic general aviation simulations.
Like previous A2A releases, the Legacy RG550 is built around the Accu-Sim 2.0 platform, featuring custom flight physics, persistent aircraft ownership, deep systems simulation, bespoke sound design, and detailed engine modeling. The aircraft is based directly on a real Legacy RG550 owned and flown by A2A founder Scott Gentile, allowing the team to continuously refine the simulation using firsthand operational experience.
The aircraft will include multiple avionics configurations, custom Garmin G5 instrumentation, laser-scanned and photogrammetry-assisted modeling, and persistent wear that evolves as the aircraft is flown. A2A has stated that the unique characteristics of each individually built Legacy make it an ideal candidate for its ownership-focused simulation philosophy.
Recent development updates indicate that progress continues steadily, with additional refinements resulting from repeated visits to the real aircraft. Rather than rushing the release, A2A has delayed the project to further improve numerous small details discovered during real-world operation.

