Hi Gents,I'm wondering if anyone knows the parameter in the aircraft cfg file which specifically affects the amount of time a turbine engine spools up. By that, I mean the amount of time or delay between when a power change is made and the engine actually responds. In the old days, with turbojet engines on DC-8s and B727s, the delay was quite long and the engines were not very efficient. But today's turbo props are pretty good about this (I know, because I fly them for a living :( ).I had successfully changed this on the Aeroworx King Air years ago but now I've forgotten which parameter it was. :( My theory is that it might be max_rpm_mechanical_efficiency_scalar but I'm not sure.Anyone know for sure?

Hi Gents,I'm wondering if anyone knows the parameter in the aircraft cfg file which specifically affects the amount of time a turbine engine spools up. By that, I mean the amount of time or delay between when a power change is made and the engine actually responds. In the old days, with turbojet engines on DC-8s and B727s, the delay was quite long and the engines were not very efficient. But today's turbo props are pretty good about this (I know, because I fly them for a living :( ).I had successfully changed this on the Aeroworx King Air years ago but now I've forgotten which parameter it was. :( My theory is that it might be max_rpm_mechanical_efficiency_scalar but I'm not sure.Anyone know for sure?

I think it is 1501 in the aircraft air file "Engine Turbine" lower numbers = less more delay. 0.0001200Douglas

1505 - CN2 vs CFFalso, the spool lag in those old engines are only between idle and ~50% of N1%. then, is faster than you can imagine.