FB, very comprehensive list, thanks. Amendment to my opening post: the caption in the paper is "key combat aircraft". Furthermore, their comparison to the RAF's key combat aircraft for 2021 is this: 104 Typhoon, 7 Poseidon, 66 Hawk, 20 A400M and 21 Lightning. I find it an unusual comparison - and if they're going to include, for instance, the A400M in the 2021 figures why no mention of C130s in 1990 (amongst others).