the sections on cruise recommend setting power according to the cruise torque chart, but i can't find it in the manual anywhere. when i search for it the only other reference to it i find is a checklist item saying to make sure i have it on board! heheis this in the documentation somewhere or is it just a reference to a real jetstream document?if the info is not available can anyone suggest some settings for cruise? should i just keep the EGT at the -50C tick even if that seems kinda slow on the TAS? in the tutorial they mention 16000 as a typical cruise altitude but i'm also curious, is that a particularly efficient altitude for some reason or just because climbing is pretty slow beyond that so on shorter hops is preferable..cheers,-andy crosby

Andy,A very simple rule of thumb is to leave torque at the -10c "tick" during cruise with 98% RPM. That's how it was done at ACA, anyway.I have the cruise torque charts, and I'll see about getting them transcribed. But a bit of research is in order first... The way FSX handles the environmental variables that are responsible for determining the power output and the thermodynamic limits of an engine aren't always realistic, especially considering the abysmal FSX turboprop model that serves as the base for the engine simualtion. The result? Despite extraordinary effort, Torque in FSX might not match the real Torque values to within 1 to 2%. For example, at 16,000ft the Long Range Cruise Torque chart indicates that the difference between scheduled Torque at -45c and at +25c (thats a range from ISA -28 to ISA+42 !!!) is only 2%. The sim's numbers would have to be perfect in order for the chart to be useable.So I'll give the numbers a workout in the sim, and if they match up reasonably well, then I'll be happy to transcribe them. Otherwise, the best course of action might be to flight test the airplane in FSX and generate the actually numbers you'd see in the sim. That could ultimately prove to be more useful than a copied real-world chart.Regards,Nick

thank you very much for the reply. it is definitely what i was curious about, the -50 tick seemed safe, but my TAS looked very low for what i thought it should be. i'm eventually going to collect detailed info for an fsbuild profile but want to make sure i kind of have a good idea for typical operating speeds and altitudes first. in the manual's flight procedures it talks about using 96% for cruise operations, but from the tutorial it was suggested 98% is just fine also, just as you are saying is a RL procedure. is the decision to use 98% basically just because the benefits of faster speeds and more flights outweigh issues with the engine wear?cheers,-andy crosby

You're welcome.Honestly, while RSR might have some valuable insight on the benefits of "cruising up" the engines to 98% vs 96%, I could only guess. Knowing that continuous operation at certain RPM ranges is prohibited (well below cruise RPM) perhaps there are harmonic or acoustical reasons. Perhaps the prop sync worked better? Or, more likely, the Chief Pilot wrote the checklist that way because of some actual or perceived operational advantage, and it simply stuck. All I know for sure is that 96% RPM is safe per the manufacturer, 98% RPM was the company policy at ACA, and sometimes, when we were late or otherwise in a hurry, we cruised at 100%.Regards,Nick