Strange plane behavior

[bond]

Can someone please help me? I have a single engine plane,when it's sitting at idle on the tarmat everything is fine. I have the parking brake set to ON,and give just a little power,as soon as i give just a small amount of power to the engine,the left wheel dings halfway down into the tarmat? (by the way,it's a taildigger). Also if i reload the aircraft,and this time do not set parking brakes,as soon as power is given the plane rotates (yaws) to the left,alot. I downloaded some tutorials,but do not fully understand the various settings to .air files ect..

[Travis]

Sounds as though your torque is set way too high, or perhaps the prop size in the aircraft.cfg or airfile is too large, or perhaps has too much inertia.  If you want to get a more detailed (and perhaps more understandable and helpful) answer, go check the forums over at www.freeflightdesign.com since they seem to know more about these issues than most of us do.

EDIT: You might find the online version of the FSX  SDK handy in helping you.  It outlines everything that can be entered in the FS aircraft.cfg file and what it does.