b377 - yessir...
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R-4360 on the B-377 (C-97) were same engine/same power, sounded same.
My ear cannot recall the thunder of the 3500 hp these made.
28 cylinders, 56 spark plugs per engine...
My mother took me from Brussels to London early 1950s, a PanAm B-377.
I recall playing with a model toy plane, on the stairs to the bar in the tail.
Got a "diploma" signed by the captain, aircraft was N1029V.
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Van Nuys, early 1970s... American Jet (Alan Paulson's facility).
There was an old Guppy stored there, I went inside... to cockpit...
Sat in the captain seat, some old instruments were left.
And there was a N registry small plastic plate on the pilot panel... N1029V...!
Took my Swiss army knife, and yanked-it... incredible souvenir.
Sadly, when I moved to Argentina 1993, lost a lot of my memorabilia...
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Happy contrails