He had a short career, being blighted by injury, but what a bowler when fit. Richie Benaud played against Tyson at his peak and watched all the later quicks (Snow, Lillee, the WI quicks, Waqar, Shoaib, Lee etc) at close hand. Richie regarded Tyson as the fastest he had seen, an opinion that carries considerable weight.
Tyson is one of three England fast bowlers who have spearheaded Ashes victories in Australia (along with Larwood, and Snow), during the past 100 years. He achieved greatness for a very brief period. This was largely through his exceptional pace, rather than his accuracy or ability to move the ball like his contemporaries, Statham and Trueman.
He was an intelligent man, with a degree from Durham University before his professional career. He was a well respected coach in Australia after emigrating there (following Larwood's path). I bought a copy of his 'Complete Cricket Coaching' (published in 1977) book when I was a boy and referred to it endlessly - comprehensive, clear and well illustrated.
RIP.