The story of the Merlin Mustang began with a phone call from Wing Commander Ian Campbell-Orde, CO of ARDU at Duxford, to Ronnie Harker, Rolls-Royce service liaison pilot, inviting him to fly a newly arrived Allison Mustang.
Does the fact that Campbell-Orde invited a Rolls Royce pilot to fly the Mustang indicate that he was already thinking along the same lines?