I count myself lucky in having many many hours behind and/or next too radial engines. That began with the TWA Constellations in the early 60's and continued on commercial aircraft into the mid-80's on Republic Airlines Convair 240 and its variants. I used to take them from Detroit to the UP of MI and loved the aircraft because of the room and comfort. They all dated from the 50's (I always checked the date on the plate in the door jamb as I got on).
But---of all---the most pleasant memories are the hours spent just behind the engine and the harmonic drones of de Havilland Beavers, beginning in the early 60's in the Army and still flying in Alaska by many bush pilots.
"A pessimist sees the difficulty in every opportunity, an optimist sees the opportunity in every difficulty” ---Sir Winston Churchill
"Political extremism involves two prime ingredients: an excessively simple diagnosis of the world's ills, and a conviction that there are identifiable villains back of it all." ---John W. Gardner
“You can’t go back and change the beginning, but you can start where you are and change the ending.” ---C. S. Lewis