View Single Post
Old 06-21-2017, 06:34 PM   #11
Benthic2
Guru
 
Benthic2's Avatar
 
City: Boston Area
Join Date: Feb 2017
Posts: 2,610
you're dealing with 2 things...a "rule of thumb" which never applies to everyone...and an "average" which is practically useless for a sample size of one.

Flip a coin once....you have a 50% chance of getting heads....but your actual results will be off by 50% from the average.

I think for anyone to give you a useful answer, you'd have to describe your boat and useage a little. ie: a 15 year old, 35 foot boat with twin diesels, no generator, air conditioning, and full electonics, and you expect to run the boat for 25 hours per week. I know that may require information you don't have....but without some sort of guideline, I don't you'll get very relevent information.
Benthic2 is offline   Reply With Quote