My planes don't steer correctly

[EddieKerbal]

With any planes I have built, I can only use the yaw to set the heading, banking doesn't change the heading at all.  I haven't seen any mention of this anywhere so I am wondering if there is something I'm doing wrong?

[Snark]

8 minutes ago, EddieKerbal said:

With any planes I have built, I can only use the yaw to set the heading, banking doesn't change the heading at all.  I haven't seen any mention of this anywhere so I am wondering if there is something I'm doing wrong?

If by "banking" you mean simply "roll", then yes, that's pretty much correct.  An actual banking turn is a combination of rolling, and pitching up.  (Often with some yaw added, too.)

[EddieKerbal]

1 minute ago, Snark said:

If by "banking" you mean simply "roll", then yes, that's pretty much correct.  An actual banking turn is a combination of rolling, and pitching up.  (Often with some yaw added, too.)

When one flies a aircraft on earth,banking or rolling the plane changes the angle if the lift in such a way as to change the heading in the direction the plane is banking. (or rolling). Is this not the case on Kerbin?

[Jimbo Jangles]

15 minutes ago, EddieKerbal said:

With any planes I have built, I can only use the yaw to set the heading, banking doesn't change the heading at all.  I haven't seen any mention of this anywhere so I am wondering if there is something I'm doing wrong?

You're not doing anything wrong, except for thinking that KSP will have aerodynamics like a normal flight sim. In regular flight sims, a 30 degree bank will give you a good turn speed. In KSP, you must apply positive pitch in your bank to get the plane turning. Sometimes a 30-45 degree bank will give you about 1 degree of turn every 10-15 seconds. If you pitch up in the same bank you will probably get 30 degrees per second.

[bewing]

If you bank, your prograde marker will slide off to the side a little. Then your SAS will apply yaw in the other direction to keep you going straight. It's necessary to overcome the SAS by applying pitch and yaw control as said above.

[Stoney3K]

8 hours ago, Jimbo Jangles said:

You're not doing anything wrong, except for thinking that KSP will have aerodynamics like a normal flight sim. In regular flight sims, a 30 degree bank will give you a good turn speed. In KSP, you must apply positive pitch in your bank to get the plane turning. Sometimes a 30-45 degree bank will give you about 1 degree of turn every 10-15 seconds. If you pitch up in the same bank you will probably get 30 degrees per second.

That is not true if your wings have an angle of incidence - ie. there is lift being generated when the plane is flying prograde.

I usually have about 3-5 degrees of angle on my wings and I can fly my aircraft with SAS holding prograde. Banking right will make it turn right because the lift will cause a heading change.

[Jimbo Jangles]

36 minutes ago, Stoney3K said:

That is not true if your wings have an angle of incidence - ie. there is lift being generated when the plane is flying prograde.

I usually have about 3-5 degrees of angle on my wings and I can fly my aircraft with SAS holding prograde. Banking right will make it turn right because the lift will cause a heading change.

In KSP it still won't turn like a regular flight sim. I have positive AoI on all my designs as well.

[Stoney3K]

22 minutes ago, Jimbo Jangles said:

In KSP it still won't turn like a regular flight sim. I have positive AoI on all my designs as well.

Try flying without SAS and use your trim (ALT+S or ALT+W) to hold attitude like you would in a real plane. And don't forget to use some rudder while you turn.

[Van Disaster]

If you want something approaching realism you'll have to use FAR. Also, if you have a reaction wheel on the craft & SAS enabled, the wheel is going to try and hold the craft's heading.