While I would probably have chosen F-105 or F-4 if I had the choice (!), the F-104, especially in later G version, should be very interesting systems- and flying-wise!
Check this website: http://www.dcode.fr/affine-cipher
Enter Cobra's code
Alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ
3rd solution in the list is CALVERTONHW (I think it ignores the numbers)
Looking back at this topic on simHQ http://simhq.com/forum/ubbthreads.php/topics/3988192/all/I'm_going_to_make_this_very,_v
Cobra was already giving us clues months ago (the OP of that topic was asking for an F-4):
Fingers crossed :cry:
Can you support that claim as I don't recall Cobra saying this? As far as I remember they only said backers would have their keys in time for the general release.