I am having difficulty visualizing the stepping process.
The permutation of Wheel
I of Enigma
I is as follows:
For this rotor, the stepping notch is at
Y. The literature states that the letter
Q is visible when the notch is positioned, and after the step,
R is visible.
It is my current understanding that the lower (exit) row increments with every character entry (which would be represented here by a circular shift), and when it gets to the notch, a step of the next wheel occurs. My question is, what is the configuration of the lower row with respect to the upper rows at the notch step? If
Y is the final character in the lower (exit) row (26), then
Q is in position 19 in the upper row. Shouldn't it be at position 1? Or conversely, when
Q is in position 1,
Y is in position 8.
Are the notch sensor and window always 7 contacts apart (on this rotor), or are they both relative to some other component?
Can someone provide a diagram of where this rotor is prior to the step (i.e., notch
Y and window