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Performance test hi altitude
renoduckman	#1  Posted on 08/24/22 - 1:11 PM
Member Posts: 81 Comments: 0 Joined: 08/12/05	Thought I’d post info on my boat, motor and propeller test at high altitude. Boat 1974 Montuak Engine 2021 F70 Yamaha mounted 2 holes up. Yamaha 13 5/8 x 13 k aluminum propeller Elevation 5800 feet, Lake Davis Ca Boat load 6 gallons of fuel, myself at 235 pounds, tackle box and fish rods. Calm wind, lake was glass. GPS speed 31 MPH at 6300 rpm. This was with trimming motor out. I hope this is helpful