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On most of the rotary engined aircraft that I've been around the pulsator wouldn't work. At Kermit Weeks his Pup with 80 LeRhone was always sucking the pulsator empty, and the Avro with twin Monosoupape pulsators would hold the level, but if it pulsated it wasn't much. Cole Palen used to say that as long as you could see oil streaks forming on the lower wing roots you were OK. Maybe that was the theory on the Triplanes.
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