Maybe someone smarter than us will come up with an explanation that us simple folk can grasp!
1.32 is the fourth root of 3, incidentally. If you understand basic calculus, that is simply derived from comparing minimum values for Drag and Power, using the relationships D = A/VČ + BVČ and P=D x V, having differentiated D with respect to V and equating to zero, then the same thing for dP/dV and comparing the 2 minima.
Beagle.
My days of differential calculus are very long ago, and little used since.
I'm reminded of a story told by (or about) Former Master of the Rolls, Lord Denning.
The Judge had asked a question of an expert witness, and having endured a long and technical explanation, looked despairingly at Council and said, 'Frankly Mr Xxxxxx, I'm none the wiser.'
Council, without hesitation, stood and replied, ' No Mi'lord, but you are now much better informed!'
MJ
