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2007 3600 Open QSB 5.9 380 hp Propeller and Engine Performance Test today
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Sapphire Offline
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Joined: Jun 2022
Home Port: Longboat Key, FL
Vessel Info: 2020 53 Fly CAT 12.9-1000 Straight Shaft
#2
08-06-2025, 09:41 AM
Not an expert but I agree with you.  The RPMs could be limited by a governor and thus you get to the max RPMs without 100% load and not overrevving.  I think this would explain the fuel burn differences as well. Try those 27 pitch once repaired and keep the 26s for spares.  Good luck.
2020 53 Fly
CAT 12.9L-1000, straight shaft
Gulf Coast Florida 
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RE: 2007 3600 Open QSB 5.9 380 hp Propeller and Engine Performance Test today - by Sapphire - 08-06-2025, 09:41 AM

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2007 3600 Open QSB 5.9 380 hp Propeller and Engine Performance Test today00