?? I would have figured the HUD symbology is FDM-independent. That would be ideal, however there seems to be a dis-connection between the EOM in the JSB models that's present in the YASim model. Of course, I'm comparing the PA-28 to the c172 models, but the PA-128 will drive the energy markers within the HUD according to model velocities and accelerations while the c172 seems to pass a zero value for the accelerations and the energy markers just hang onto the velocity vector values. Mike
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