Larger Props For Efiency And Engine Life When Running Big Engines Slow

[chris]

Have never heard of a Vibration Test....Is it a formal procedure and or test debvice??? can someone explain what's involved...how it's done....can it isolate different sources???

Rob
They hook several sensors to different location on the boat. Then ran the boat from 900 to 2300 rpm in and recorded the vibration readings in 100 rpm increments.
If you are interested in seeing the data from mine pm me your email address and I will email it to you.
Chris

[REBrueckner]

Chris,
Thanks for the offer, I'd likely not know what the results mean. Sounds interesting.
Do they have benchmark's for comparison?/ In other words, how helpful are the sensors in isolating an actual problem? Did they make specific interpretations for you....For example, I'd assume the aft most strut adjacent to a prop gets more vibration that an intermediate strut in a drive drain that's ok...so it would be the additional vibration variations beyond those typical variations that would most likely be relevent....