To help my ageing eyes, I created those "data rulers", which one can simply print on a sticker paper, stick on cardboard and cut out.
Then place appropriate ruler next to the airplane console.
I used graphics at the maximum, so that these rulers are not language dependent.
They cover the following products : DOW, FftS, EotR, FL.
If I am not too lazy, I will include the Revolution and Last Biplanes in the file some day...