He gained a First Class degree from Cardiff Technical College.
Pearson became a Whitworth Senior Scholar in 1930 having used his Scholarship to do steam turbine research at Metropolitan-Vickers and in 1985 became President of the Whitworth Society.
During the Second World War, he was Chief Engineer at the R-R shadow factory in Glasgow, producing 150 Merlin engines a week.
He oversaw the expansion of Rolls-Royce into the jet aero-engine market in the 1960s.
[2] He became an FRAeS in 1964 and was awarded the Gold Medal of the Royal Aero Club in 1967.