trim lag

[kapapilot 0]

Hi,I just wanted to see if any of you have experienced a lag in the trim on FSX. On mine, I add elevator trim up or down and it doesn't respond until around 10 seconds later. Any ideas?thanksAnthony

[kapapilot 0]

anybody know?

[zfehr 1]

How exactly are you using the trim? Give an example of what you are doing and when you are changing the trim setting so we know what you are talking about.

[rightseater 0]

Hi Anthony,You may need to expand your question a bit, because it is unclear how you are applying said trim. It would be helpful to know which method you use, such as a button or switch on a yoke or HOTAS, keyboard commands or otherwise. You should also examine the control settings in FSX to determine if the trim action occurs once, or how often it repeats the key/alternative command. It may also help to share your experience with trimming an aircraft since some do not understand exactly how it works....not saying that you don't. Also, is this a new anomoly or has it been occuring for some time? Does it happen in all circumstances, or only when trying to trim a climb,descent, straight and level, etc?

[kapapilot 0]

Hi,I am using a toggle on a saitek yoke, but even when trying the keyboard, there is a delay, it might be something in a setting somewhere.thanksAnthony

[zfehr 1]

Hi Anthony,You are not explaining how and when you are using the trim and my suspicion is you are attempting to use it incorrectly. Flight Simulator at best doesn't allow for a good simulation of trim in the first place since you don't have control forces coming through the yoke/joystick and even the older force feedback units were gamey at best. If you did have a force feedback joystick there was an older secondary program that was designed to better emulate trim adjustment and how it works in real life. If you are a real pilot and have experience with trimming a real aircraft then you may be running into the limitation the sim platform has in properly emulating this procedure. If you are a simmer and haven't read the section in the learning center regarding trim use I will quote that section below:"Trim ControlThe trim control is like the cruise control on a car. It helps you maintain a specific control position so that the airplane stays at a particular speed or attitude without making you hold constant pressure on the controls.Most small aircraft have only one trim tab, located on the elevator. Larger aircraft usually have trim tabs on all the primary control surfaces: ailerons, rudder, and elevator.How Trim Control WorksOn small aircraft, the pilot moves the trim tab by rotating a wheel. The trim wheel is usually located below the engine controls or between the front seats. To apply nose-down trim, you rotate the wheel forward or up. To apply nose-up trim, you rotate the wheel backward or down.Moving the trim wheel deflects the trim tab, which in turn moves the control surface in the opposite direction. To hold the elevator up, move the trim tab down.What Trim Control DoesThe elevator trim compensates for the changing force created by the flow of air over the elevator. When the airplane is properly trimmed for level-cruising flight, you can fly "hands off," applying only occasional, small control pressures to compensate for the occasional bump or minor change in heading. If you add power, however, the airplane speeds up, and the nose tends to rise because more air is flowing over the tail. To maintain altitude, you must apply forward pressure on the control yoke. Holding that forward pressure for more than a few minutes is fatiguing and difficult. To compensate, apply down elevator trim until the pressure disappears.If you reduce power, the airplane slows down, and the nose tends to fall because less air is flowing over the tail. To maintain altitude, you must apply back pressure on the yoke. To compensate, apply up elevator trim until the pressure disappears.Trim for SpeedYou can also think of the trim control as the airplane speed control. For example, suppose you set the engine controls for cruise power and trim the airplane so that it flies straight and level "hands off." The airspeed will soon stabilize at a particular speed. If you reduce power, the airplane slows down and the nose drops. If you leave the trim setting alone, the airplane will gradually stabilize in a descent at the cruise speed you established earlier. Likewise, if you add power, the nose will rise and the airplane will stabilize in a climb at about cruise speed.Trim to Relieve Pressure, Not SteerRemember to use the trim control only to relieve control pressure. Don't try to fly the airplane with the trim control. If you want to change the airplane's pitch attitude, apply the appropriate control pressure on the yoke, change the power setting if necessary, and then adjust the trim after the airplane stabilizes."taken from the Learning Center, Cockpit basics

[brucek 38]

Regarding the original poster

[rightseater 0]

Excellent post straight from the Learning Center. Sometimes I forget how many goodies MS included with FS.Anthony, I'm still not sure exactly what is going on with your trim problem, but you may simply need to revisit the settings in FS. It is possible that your yoke switch command is set to only perform the trim action once, or it may be set to repeat the action causing a trim up/down input repeatedly so long as you are holding the switch/button. There are a multitude of variables that are included in properly trimming an aircraft, including your airspeed, attitude, and thanks to FSX even turbulence. But as has been stated in this thread, FS does not do a particularly magnificant job at recreating trimming, especially with the lack of a seat-of-your-pants feeling.