I have discovered that my planes enters an increasing left bank if controllers left alone at neutral, and with rudder and aileron trim set to zero and balanced loading.In the realism settings I see that this could be realistic and is affected by torque and p factor. But I have the impression that this is more pronounced than it has been before.For example after less than a minute the bank could be 20 degrees or even more. The default Cessna 172 was worse with more than 30 deg.Decreasing the toeque slider (from 2/3 to 1/3) diminished this effect but that is also supposed to mean less realism.What is normal here? If my planes behaves unrealistically how can it be cured.I have calibrated my controllers using FSUIPC.

One of a few things if not a few things at once when the slider realism is maxed out.Could be unequal fuel between left and right tanks. Some planes allow you to burn fuel in both, left or right tanks. This would cause more weight on one side over the other. If your are flying on left and right tanks seperatly, switch back and forth about ever 15 minutes to keep the tanks as equal as possible.Make sure your load out is equal. No more weight on one side than another.Could also be torque and P-factor as you have said. At high angles of attack the torque and P-factor are the greatest. It is not uncommon for me to have to trim the aircraft in climb out, cruise, and decent stages of flight. Elevator trim will assist with pitch, Aileron trim will assist with roll, and Rudder trim will assist with yaw.Kevin

>Could be unequal fuel between left and right tanks. Some>planes allow you to burn fuel in both, left or right tanks. >Make sure your load out is equal. No more weight on one side>than another.>No this is not the problem. I had equal load on both sides. Alsothis left turning occurs before any significant fuel inbalance has had time to build up.>Could also be torque and P-factor as you have said. At high>angles of attack the torque and P-factor are the greatest. It>is not uncommon for me to have to trim the aircraft in climb>out, cruise, and decent stages of flight. Elevator trim will>assist with pitch, Aileron trim will assist with roll, and>Rudder trim will assist with yaw.>If you don't touch aileron and rudder controls with equal load and neutral trim, does the plane start banking to the left? If so how much and for which planes? What have you set the P factor and torque sliders to?

I wouldn't use the default cessna to test realism effects

That seems a little more pronounced then I'd expect in a Cessna 172, but I haven't flown the 172. In the Cessna 150/152, I know it' would veer to the left and be probably at a 20 degree bank if I took my hands and feet away from the controls long enough to try, but letting the plane go out of control was not my goal in flight training. :-hah----------------------------------------------------------------John MorganReal World: KGEG, UND Aerospace Spokane Satillite, Private ASEL 141.2 hrs, 314 landings, 46 inst. apprs.Virtual: MSFS 2004"There is a feeling about an airport that no other piece of ground can have. No matter what the name of the country on whose land it lies, an airport is a place you can see and touch that leads to a reality that can only be thought and felt." - The Bridge Across Forever: A Love Story by Richard Bach

With my setup, a Saitek X-45 joystick & Thrustmaster pedals, the default 172 actually does a rather good job. Left drift during the takeoff roll & climb, and fly's quite straight at 100 kias. It's also easy to trim for fairly level flight, much like the real one.The 172 uses a fixed ground adjustable rudder tab, which is suppose to fly somewhat straight once you get to cruise speeds. I think this simulated one, does it quite realistically.IMO, the RealAir 172 update for FS2002 had quite an effect on improving the stock (FS2002) 172 flight dynamics. But I found it to be less, with the FS2004 default, with the exception of slip/spins, in which the RealAir update excels.L.Adamsonedit: Realisim settings are at full

Donny AKA ShalomarFly 2 ROCKS!!!I have not noticed any problems with #aircraft# at full realism. However, should you ever try choppers, take the general realism down a notch and it will be #more# realistic- or more like other sims in which I have no problem with the basic maneuvers. It is not just me saying this either.Merry Christmas and a Survivable New Year:-beerchug

>>Donny AKA Shalomar>Fly 2 ROCKS!!!>>I have not noticed any problems with #aircraft# at full>realism. However, should you ever try choppers, take the>general realism down a notch and it will be #more# realistic->or more like other sims in which I have no problem with the>basic maneuvers. It is not just me saying this either.>In most cases, the down a notch for choppers works best. But then, the FLY 2 choppers............were too easy! :D L.Adamson

Donny AKA ShalomarFly 2 ROCKS!!!Quick comeback.:D How bout SAR 3? I am about to get 4.Best regards, Donny:-wave

>Donny AKA Shalomar>Fly 2 ROCKS!!!>>Quick comeback.:D How bout SAR 3? I am about to get 4.>Haven't heard of it...

Donny AKA ShalomarFly 2 ROCKS!!!Stands for Search And Rescue. Not quite a sim, not totally a game, use choppers the way they usually get used by the Coast Guard. Not to take this any #more# of topic- BTW, good to "hear" from you.All they do is chopper flight dynamics.Merry Christmas and a Survivable New Year:-beerchug

jfriSometimes you have to go back and reset all the neutral axis in FS9.Problems can occur when you download a 3rd party plane and just go fly. The 3rd party plane may not have a neutral setting.Start FS9 with the default startup of the C172 at KSEA. MSN as always said to start FS9 this way or problems can occur but we sometimes deviate from this with our own planes. This calibrates all the axis to neutral, sets mag compass correctly, etc. Now "Go To" the aircraft menu and select the plane that is giving you problems.Move the plane to what ever airport you want to save it at. Make sure to also set engine off, light settings, etc. If you want this to be the default startup plane then tick that box also.Restart FS9 and the plane should fly properly if the designer wrote a good set of mdl's and cfg's.

The problem is not limited to just C-172 aircraft. I noticed that even my jet tends to continually pull to the left on takeoff roll. While I could chalk it up a P-factor or torque or spiraling slipstream on my Cessna and other prop driven aircraft, why my jet pulls left on high realism is beyond me.Mark

This is mentioned in the Dreamfleet forums. They recommend turning 'P-Factor' down to half way as it is over exaggerated in FS9

When I flew a C150 it slowly rolled left into a spiral dive if it was left to itself.I well remember my instructor taking his hands and feet off the controls during an initial flight. When he saw my (obvious) look of concern he pointed to the VSI and asked me what does it show? I said -500 fpm. He then asked me what the altimeter showed and I said 3000 ft. So, he said, why are you worrying - we've got 6 minutes. My first lesson in trusting the instruments!