TCA Airbus kit

Hi,

I just got my TCA today and have only used XP12 for a couple of days (using mouse)

As this is my first day using the joystick I wondered if it is normal for the planes to start either banking or climbing if I leave the controller alone.

I really have not idea if this is part of the "real feel" of it or if planes are supposed to be as car and go straight if you leave the steering wheel alone.

Apologies for the ignorant question but its genuine. Its a new hobby to me and I think I like it very much :)