Awesome writeup by By Air Commodore Alistair Byford (Retired).
(https://miro.medium.com/max/5500/1*dPakhqfULN8j4EDPPgF3dA.jpeg)
https://medium.com/raf-caps/operation-granby-and-the-dawn-of-precision-in-the-royal-air-force-a-personal-perspective-52fa7fb8b26e