sunedog
Well-Known Member
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Had a chance to do a long cruise on smooth water and played with the trim some. 2017 23RSB with ESP and a Yamaha 250 VMAX. SS "Turbo 1" prop but I can't find a part number or the size and pitch on it. Toons are pretty clean (as clean as you can get them with a scotch bite pad in the water.). About 3/4 tank of fuel (52 gallon tank).
I generally keep the trim about one tick above the middle on the gauge. Result: about 20.8 MPH at 4550 RPM
![IMG_1617.jpg IMG_1617.jpg](https://club.benningtonmarine.com/data/attachments/31/31680-efa69eaaf1b16585d938be14941451bd.jpg)
I moved the trim down significantly to well below half. RPM's dropped and speed increased more than 1 MPH? A hair under 22 MPH at 4200 RPM. I was not expecting that result.
![IMG_1616.jpg IMG_1616.jpg](https://club.benningtonmarine.com/data/attachments/31/31683-40b821751404fde351f113b4daecde2f.jpg)
And here's the prop I can't identify. I'll take it off when I do my annual maintenance and will probably find the part number and pitch.
![IMG_1520.jpg IMG_1520.jpg](https://club.benningtonmarine.com/data/attachments/31/31684-0eeea4477423e6e3da6b9ceb6e74a2e2.jpg)
I generally keep the trim about one tick above the middle on the gauge. Result: about 20.8 MPH at 4550 RPM
![IMG_1617.jpg IMG_1617.jpg](https://club.benningtonmarine.com/data/attachments/31/31680-efa69eaaf1b16585d938be14941451bd.jpg)
I moved the trim down significantly to well below half. RPM's dropped and speed increased more than 1 MPH? A hair under 22 MPH at 4200 RPM. I was not expecting that result.
![IMG_1616.jpg IMG_1616.jpg](https://club.benningtonmarine.com/data/attachments/31/31683-40b821751404fde351f113b4daecde2f.jpg)
And here's the prop I can't identify. I'll take it off when I do my annual maintenance and will probably find the part number and pitch.
![IMG_1520.jpg IMG_1520.jpg](https://club.benningtonmarine.com/data/attachments/31/31684-0eeea4477423e6e3da6b9ceb6e74a2e2.jpg)