So if the engines are already in beta, why not have one lever further back in beta to assist the turn?
That's what I was thinking the case to be.
What's the alternative, differential brake to assist a turn if it needs tightening?
Surely the change in beta on one prop is not as noticable than someone stabbing at a brake pedal (it is surprising how many people don't know how to brake smoothly!)
HH, how do you turn your Kingair tightly after taxying with some beta- click them out and use differrential brake and apply differential power (spool one up)?
Or are you just talking about not using differential beta in a normal, non-tighter-than-the-pedal-steering turn?