Hi,
I'm currently trying to simulate a Cirrus SR-20. Everything generally works well, except that the cruise speed is approximately 110kts, importantly, around 40kts below published values of 150kts. I did some research and found on flight gear, the cirrus sr-20 model is modelled on the Piper PA-28, which has a cruise speed also of 110kts. I would like to increase this cruise speed to its required cruise speed of 155kts. Has anyone else had a similar problem, and if so, what have been some ways to solve this? I'm thinking of changing aerodynamic parameters, or the CG location, but am unsure whether this will have unrealistic consequences in the rest of the model. I'm using JSB-sim as an FDM.
Cheers.