Here's a screenshot to go with the above

I have also worked out what those little numbers at the trailing edge are - they are the distance of the travel in cm or inches depending which version of the chart you are using. So if you know you want the t/e travel to be 2 cm or inches, just adjust the angle in Rc until you see the diagram give you the travel value that you need - of course you must have already set the correct chord in box Cavg, but in order to find the angle that gives the correct travel set Cavg to the chord at the travel measurement point e.g the root, and not the average chord. Once you see what angle that requires, you can set Cavg back to the average chord in order to do the rest of the calculations.

It's astonishing what values are calculated, for example it says that at 150mph the ailerons on my F-86 need a servo torque of, wait for it, 0.7kgcm !! Even with a 50% uplift to provide a margin for error and not strain the servo, that's tiny electric foam model territory, why did I fit expensive, powerful, coreless servos? Because I didn't have this spreadsheet!! A very standard servo would do the job. It says the rudder needs a mere 0.3kgcm, a housefly could pull that! Having this for future building projects will certainly be changing my servo buying decisions.