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View Full Version : dual prop speed?



Terrell
03-27-2000, 07:59 AM
Hey, not to beat a dead horse, but how does that magic formula work when your in a dual prop setup? I recently changed over my '73 X-18 to a Volvo DP-D1 with 1.78 gear ratio, and factory stainless props which have the numbers 503B and 504B on them. Any clue what there pitch might be? It seems to me that the slipage factor shold be less in a dual prop setup.