Is jet and turboprop spool-up fixed in FSX? Do engines now have a slow steady spool-up vs the high rpm (piston) spike? Regards,SD

SD,assuming the models have not changed here, then Table 1505 and the fuel flow gain will have the same effects.Ian

In my mostly unqualified opinion (having experience only in full-motion KC-10 sims), turbofan spool up is dramatically too slow. On a reasonably modern turbofan (such as the CF-6), the engine speed should only very slightly lag behind throttle position. As it is now, if you chop the power, it takes a good 5 seconds before N1 begins to drop appreciably. In my (again lacking) experience, this is just not correct.Earl

I believe this is all possible in cfg files now. Take a look at the vistaliners 727s

Hi,I think the OP might not be referring to throttle response in-flight, but rather the strange behavior upon engine start. I'm pretty sure that throttle response can be adjusted in the .air or .cfg files, but during start, the FS default behavior has been a very rapid and unrealistic spike in N1, N2, EGT to values way above stabilized idle. Ive seen N1 spikes to nearly 90% in previous versions of FS.Obviously, in the real world, N1 and N2 smoothly and slowly increase to stabilized idle, while EGT may spike depending on conditions and pilot action.Of course, maybe he is referring to throttle response, and I've just wasted 5 minutes of life, and 30 seconds of yours. ;)Regards,Nick

You are correct Nick. I was refering to the engine rpm (N1, N2, EGT) spike on startup. Sorry if I was not clear on that. Regards,SD

Ah yeah I see now. Try cold and dead in the CRJ in the demo that should give you your answer.