That sir is a Willy Victor, phoenetic slang for the Navy WV-1, later RC-121 come EC-121. As an Air Force Brat I saw my first Willy Victors at Naha, Okinawa about 1960-61. As you can imagine the four big radials being spun up and those great clouds of oil smoke, from the oil that had pooled in the bottom cylinders, and that fabulous slobbering popping sound as those fouled plugs began to fire and then the music as the slobbering turned into the lovely rumble of a large round motor, I believe they are turbo compound engines. Multiply that by 4, add the triple tails of the Lochkeed Super Connie and that sweet pouty puss looks like shes smilin, I know I'm a knockout, setting back on the mains with her snout in the air. Yeah that grabbed me even at five years old, I would literally beg my Dad to take me down to the flight line, ya know what, I still have to stand around and watch and listen , whether its a Cub or the Concord, and yes I have stood less than 100 yds away as the sweet awfull Concord clawed her way off the earth. Yep it all still gives me that lovin feelin! The sounds, smells, and sights of freedom!