Finally recorded some numbers on performance:
Average of 2 runs with/against current/wind
Suzuki DF300B (duo-prop):
RPM Speed GPH NM/Gal
(knots)
3000 16.0 6.6 2.5
3600 25.1 8.6 3.0
4000 28.4 11.0 2.5
4500 32.5 13.9 2.3
5500 41.0 24.2 1.7
5700 42.5 26.0 1.6
Probably had a little more RPM to squeeze out with trim but thats where I cut it off.
Just a little under what dealer reported during initial trial.
Motor seems to like the 3600/max efficiency speed - loafing.
Curious how this compares to other 300 HP numbers with single prop if anyone can provide those.
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