I don't really understand the Flow Selectors, but on page 60 of the Tutorial is says to set them to 5, which I have been doing.I am now reading through the AOM and in Chapter 3, page 17, it says for Takeoff they must be set at 3 or less.Which one is correct?Roy Warren

Roy,I haven't flown the tutorial flight, so I'm not sure when/where/why it wants you to set Flows 5.On the real airplane (at my old airline), Flows 3 is the maximum allowed for takeoff/landing. You are only allowed to use them if the airplane is capable of generating 100% torque if 10C were added to the current Static Air Temperature. The only way you would know the answer to that question is if you could look at the takeoff analysis charts for the runway you're using for takeoff.As an example if you were taking off from IAD, Runway 19L, full length, and the SAT/OAT was 19C, you would be able to use Flows 3 for takeoff because the runway analysis shows that at 29C, the scheduled torque is still 100%. On the other hand, if it were 20C, then you'd have to perform a no-bleed takeoff because at 30C, the airplane will only make 99% torque.Clear as mud?As an aside, when you move the Flows from the OFF position, you should initially set the selector to 10 in order to facilitate pack spinup and reduce bearing wear. After 10-15 seconds, position the selector to the desired position.Edit: Forgot to add that the Flows must be off for all takeoffs in icing conditions.

Roy,I haven't flown the tutorial flight, so I'm not sure when/where/why it wants you to set Flows 5.On the real airplane (at my old airline), Flows 3 is the maximum allowed for takeoff/landing. You are only allowed to use them if the airplane is capable of generating 100% torque if 10C were added to the current Static Air Temperature. The only way you would know the answer to that question is if you could look at the takeoff analysis charts for the runway you're using for takeoff.As an example if you were taking off from IAD, Runway 19L, full length, and the SAT/OAT was 19C, you would be able to use Flows 3 for takeoff because the runway analysis shows that at 29C, the scheduled torque is still 100%. On the other hand, if it were 20C, then you'd have to perform a no-bleed takeoff because at 30C, the airplane will only make 99% torque.Clear as mud?As an aside, when you move the Flows from the OFF position, you should initially set the selector to 10 in order to facilitate pack spinup and reduce bearing wear. After 10-15 seconds, position the selector to the desired position.Edit: Forgot to add that the Flows must be off for all takeoffs in icing conditions.

Nick,Thanks for explaining this to me. When I fly the JS-41 I want the experience to be as close to the real thing as possible. Of course that's the one reason I bought this plane. I really love the attention to detail which PMDG gives us. I still have so much to learn.Roy Warren

Roy,No problem! It's a sweet ride, and a lot of fun to handfly. I hope you enjoy it!