By directly communicating with FSX (no need for any external software like FSUIPC) we managed to manipulate the friction for each surface and condition (dry, wet, snow) you could encounter. So the 'patch' would work nice for some but not so nice for others who use different aircraft.įSPS decided to resolve once and for ever the “FSX friction” problem. Although a pioneer approach to solve the problem, the quality of the results would vary from user to user as some smaller aircraft behaved differently from bigger ones.
Some people in the past tried to fixed the problem by replacing the Sim1.dll (the Microsoft file that contains all friction values). That – in real life – causes the aircraft to need more distance and additional time to reach the same speed when on wet! In real life there is also the resistance from the mass of water that the wheels travel on and cut through, so a 'virtual weight' or an opposing force, is added to the formula. The friction of the same surface when on dry compared to wet is higher, so the opposing force would also be higher, so the distance on the same thrust and weight – thus the time – to reach the same speed would also be higher. Thinking lightly, someone would say yes. By changing the weather setting to have a wet runway you will see that you will need LESS time (i.e. You will notice that you will need (just for example) 10 seconds to reach 50KTS GS on model “X”. You can easily test out yourself a part of the problematic default FSX settings by accelerating with a specific aircraft to a specific ground speed down the runway. (Runway condition, thrust, weight), aircraft is accelerating faster in wet / snow covered runways and more.Īt the start many thought that the aircraft physics model was not made correctly: For example that the thrust was misconfigured or that the weight distribution played a role.Īctually all problems (most times) are due to the way FSX is handling friction. In some cases aircraft would taxi on idle thrust while the real aircraft was not behaving like this (or vice-versa) at the exact same conditions. The problem in a few words is that FSX friction is unrealistic. Runway friction in FSX was always a subject of discussion in the developers and advanced users community.