So they used more oil than a 2 stroke .... multigrade 20-60 ?
wonder what the ratio leak:burn was !
Is the aviation gasoline available today still the same formula as used in the 50/60s? Sweet smell I recall much more aromatic than car gasoline - my mother used to tell me not to breath it when I wondered around underneath a DC-3 looking and touching everything until one day I burnt my fingers on very hot break disks.
Oh ...and fabric elevators and rudder always puzzled me why fabric was used?