What are the best FSX settings users find for realism settings for using the JS41 with? In respect of Torque and Pfactor? Obvioulsy these havent been much of an issue with jet a/c and normally all me realism settings are set to fully real, having flown some other prop a/c I have lowered them a little, as I tend to find that on take off or landing the amount of veer as you apply power is excessive and makes keeping the aircraft straight on the runway a hard job having to use an excessive amount of rudder! I have FSPUIC also which I calibrate my controls with so any reccomended settings for that to assist in this issue?RegardsJames

James,In your Start menu, go to PMDG Simulations > PMDG Jetstream 41 > PMDG BAe JS4100 Introduction and Overview. You'll find your answers there.

James,In your Start menu, go to PMDG Simulations > PMDG Jetstream 41 > PMDG BAe JS4100 Introduction and Overview. You'll find your answers there.

Cant seem to find anything in my that manual that reffers to realism settings?

The JS41 has a right hand prop that rotates CCW and a left hand prop that rotates CW (when viewed from behind the aircraft)... there is no critical engine as a result...This effectively cancels out the the yaw induced by increasing power, as the induced yaw of each engine is cancelled out by the other...Also, in the case of p-factor, as the angle of attack increases, there is going to be no net effect, as the blades moving downwards are both on the proximal (ie inner side of the engine nacelle) side, as the thrust shift on the right hand side is to the left, and on the left hand side to the right...If the aircraft is veering on takeoff, check the winds... that is most likely going to be a crosswind causing the veer...AndrewPS: These parameters are an issue with single prop and multi-prop aircraft with a common rotational direction for the blades... however, the settings for the JS41 are going to be the same as for jets...

The JS41 has a right hand prop that rotates CCW and a left hand prop that rotates CW (when viewed from behind the aircraft)... there is no critical engine as a result...This effectively cancels out the the yaw induced by increasing power, as the induced yaw of each engine is cancelled out by the other...Also, in the case of p-factor, as the angle of attack increases, there is going to be no net effect, as the blades moving downwards are both on the proximal (ie inner side of the engine nacelle) side, as the thrust shift on the right hand side is to the left, and on the left hand side to the right...If the aircraft is veering on takeoff, check the winds... that is most likely going to be a crosswind causing the veer...AndrewPS: These parameters are an issue with single prop and multi-prop aircraft with a common rotational direction for the blades... however, the settings for the JS41 are going to be the same as for jets...

Andrew based on that then, why am i getting such an amount of veer? Obvioulsy wind as an effect, i fly with real world weather input from ASA, and there often some crosswind component, but generally with the flying i have done recentlty proably no more than 10kts max. Is it a fsx bug in the modelling of the props?RegardsJames

James,You mean yaw? It's possible that your engine power settings are mismatched. Are you using a throttle quadrant? What are you engine instruments telling you?

Good point there Kurt... I didn't think of that one... I assumed that he was powering up symmetrically... I use a TQ, but have only one lever active for both power levers, so do not experience asymmetric thrust due to mismatched levers...James, I haven't experienced any excessive yaw on takeoff or landing so far... even tried an hour of touch and goes a couple of days ago...Andrew

Good point there Kurt... I didn't think of that one... I assumed that he was powering up symmetrically... I use a TQ, but have only one lever active for both power levers, so do not experience asymmetric thrust due to mismatched levers...James, I haven't experienced any excessive yaw on takeoff or landing so far... even tried an hour of touch and goes a couple of days ago...Andrew

Hi there yes it is a Yaw effect, I do use saitek TQ, and have been careful to ensure they both are giving the same amount of power along with condition levers both at full also on takeoff, I even used the keyboard the one time to apply full power to see if it was joystick mismatch, I use FPSUIC to configure the controls. I use the same setup with leved 767 and other twin engined addons and dont get same effect, so hence why I thought it was a JS41 more specific issue, I shall try disabling all weather, and see effect of that and also using single control for engine.RegardsJames

Hi there yes it is a Yaw effect, I do use saitek TQ, and have been careful to ensure they both are giving the same amount of power along with condition levers both at full also on takeoff, I even used the keyboard the one time to apply full power to see if it was joystick mismatch, I use FPSUIC to configure the controls. I use the same setup with leved 767 and other twin engined addons and dont get same effect, so hence why I thought it was a JS41 more specific issue, I shall try disabling all weather, and see effect of that and also using single control for engine.RegardsJames

I'm using an X52 Pro throttle and I notice a slight yaw and slight roll effect with both engines synced at both high AOA and high power as well as High AOA and low power. Not sure if this has to do with it (In regards to the engine simulation of the addon), but I have noticed that upon high throttle delta, while decreasing power, one of the engines egt's lags behind the other (not sure which one, I can't recall). Maybe initialising FSX with the default King Air (Since it's a default turboprop and the J41 uses a portion of the FSX turboprop model) before switching to the J41, instead of using the C172, a default single, will cure the issue.JB

I'm using an X52 Pro throttle and I notice a slight yaw and slight roll effect with both engines synced at both high AOA and high power as well as High AOA and low power. Not sure if this has to do with it (In regards to the engine simulation of the addon), but I have noticed that upon high throttle delta, while decreasing power, one of the engines egt's lags behind the other (not sure which one, I can't recall). Maybe initialising FSX with the default King Air (Since it's a default turboprop and the J41 uses a portion of the FSX turboprop model) before switching to the J41, instead of using the C172, a default single, will cure the issue.JB

I had this problem. I t turned out to be that I had only released the stop lock on one engine, so one spooled up to full power and the other did not.Keith Batchelor

I had this problem. I t turned out to be that I had only released the stop lock on one engine, so one spooled up to full power and the other did not.Keith Batchelor

The Stops are definately off on both engines. The roll and yaw tendency is so small it's hardly noticable, nothing like the whiplash inducing yaw from one engine running up and the other at 30ish% torque from one lock still on...But thanks... JB

The Stops are definately off on both engines. The roll and yaw tendency is so small it's hardly noticable, nothing like the whiplash inducing yaw from one engine running up and the other at 30ish% torque from one lock still on...But thanks... JB

I have found that at Idle postion on my TQ my engines are slightly in beta, which I find useful,I have noticed that taking them a little out of beta first and having them stabilised before applying more power does help with the yaw effect on takeoff, but it still occurs, I still have to apply quite a lot of rudder using my pedals to keep the aircraft completely straight on the takeoff role, so it would be interesting to still know if the Realism settings of FSX do actually have any effect, those users that get totally straight take offs, what do you have those settings at?Are you using hardware rudders, with autorudder turned off, etc...?RegardsJames

General slider should be at maximum - that's the big one, the others probably don't matter much. I'll try to get a response from Vangelis tho.

James,Are you starting your J41 flights from a user created save? The reason that I ask is because something happened to my original saved start point for the J41 that resulted in the aircraft veering to the right during the take off run, and also rolling to the right when airborne. So I dumped that save, and recreated exactly the same starting conditions (location, season, time, weather etc). When I tested the new save, the problem had vanished.FSX can act a bit strangely at times.....

James,Are you starting your J41 flights from a user created save? The reason that I ask is because something happened to my original saved start point for the J41 that resulted in the aircraft veering to the right during the take off run, and also rolling to the right when airborne. So I dumped that save, and recreated exactly the same starting conditions (location, season, time, weather etc). When I tested the new save, the problem had vanished.FSX can act a bit strangely at times.....

Ok I'll have a look at that then, as i use FSPUIC and the autosave function, I get it to do autosaves, but I also get it to save to a file called LAST which is set as my default flight, so on starting FSX its the flight it always loads, making it so whatever flight I did last, where I left the aircraft and in what state is always what loads. I do it for some realism that My Aircraft has to fly back to where I want it rather than making it magically move! So I'll give your suggestion a go thanks....RegardsJames