private void updateEngineGuiStats()
{
if (engineModule != null)
{
string prop = engineModule.propellants[0].name;
PartResource res = part.Resources[prop];
double propMass = res.info.density * res.amount;
guiThrust = engineModule.maxThrust * engineModule.thrustPercentage * 0.01f;
float isp = 220f;
float g = 9.81f;
float flowRate = guiThrust / (g * isp);
guiBurnTime = (float)(propMass / flowRate);
}
}