Flight Dynamics
REP refines the flight envelope by adding features beyond what X-Plane provides by default. With REP’s custom airfoils, the aircraft achieves the correct stall speed at precise attitudes, as well as accurate climb speeds (Vy and Vx) and vertical climb rates that align with real-world aircraft specifications.
For a detailed look at REP’s precision, see the example provided in this post.
One of REP’s standout features is its realistic stall behavior. REP tailors stall characteristics based on the specific wing type, allowing the aircraft to deliver authentic stall warnings, including a realistic stall buffet—a feature unmatched by any other aircraft in X-Plane! If you’re using HeadShake, you’ll even experience the added sensation of stall vibrations.
Ground Behavior
Many X-Plane add-ons focus exclusively on flight dynamics, often overlooking how an aircraft behaves and feels on the ground. We believe this is a significant oversight. Different aircraft exhibit unique ground behaviors due to variations in landing gear systems, weight distribution, and other subtle characteristics that bring them to life.
Take the Cessna 210, for example. Equipped with a spring-loaded, free-castering nose gear, the C210’s nose wheel pivots freely rather than being directly linked to the rudder pedals. Pilots steer by relying on the aerodynamic effect of the rudder and using differential braking—a technique replicated in REP for an authentic ground-handling experience. And no special hardware is required! If you’re flying with just a joystick, REP automatically adapts, providing convenient options for differential braking.
Additionally, X-Plane’s default exaggerated crosswind effects on the ground can lead to unrealistic tire skidding even during gentle turns. REP corrects this, making crosswind taxiing feel as true-to-life as possible!