As an FAA Certificated Flight Instructor I am always happy to see helpful information about flying published. There is good information on the sites you published, however, there is also information that is just flat out wrong, and if followed in a real airplane in the real world might kill you.
just one example is the following:
Standard turn
A standard turn is when the wings are out of alignment with the horizon, with the aircraft tilted to the left or right. A little rudder applied in the opposite direction will prevent the nose form dropping , keeping you in a nice steady turn. The greater the tilt of the wings the tighter the turn at a given speed, also more rudder will need to be applied.
First, a Standard Turn or Standard Rate Turn is a bank angle that results in a two minute turn, that is, it takes two minutes for the aircraft in level flight to make a 360 degree turn.
Second, When ever you apply opposite rudder you put the aircraft into a cross controlled situation. Not something you want to do. You use the rudder to center the ball, period. In a steep banked turn, the only way to keep the nose on the horizon is to center the ball and apply back pressure on the stick to maintain level flight. If the nose drops shallow the bank. If the nose raised above the horizon just steepen the bank. If the nose raised use a steeper bank angle. But the ball stays centered using Rudder.
In any turn you have to roll the aircraft into a Bank, Lift of the wings is what turns an aircraft, not rudder. When you bank the aircraft the lift is offset and pulls the aircraft in that direction.
The offset lift component is less then when the aircraft is in level flight. Therefore the pilot is required to increase back pressure just to maintain level flight. The increased back pressure increases the angle of attack (AOA).
The steeper the bank, the more back pressure is required to maintain level flight and the greater the AOA becomes. If the critical AOA is reached, the wing stalls, in a steep turn of 45 to 60 degrees to the right, the left wing has a greater AOA and will reach the critical AOA before the right wing.
When this happens it’s called an Accelerated Stall. If the ball is centered all that happens in an Accelerated Stall is that the high wing loses lift and drops down until the AOA for the bank angle is no longer critical. In effect the aircraft roles wings level.
If however, you were holding left rudder to maintain a steep level turn to the right, well that turn at the moment of stall now becomes a snap roll in the opposite direction of the rudder input. Your steep right turn becomes an inverted flat spin to the right.