Quote:
Originally Posted by Nerys
current is everything in a boat...
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Really it is only part of the picture. I think it is a legacy measurement (because they didn't have a better way to measure miles made good) that only complicates efficiency measurements.
It would be like saying headwinds and tailwinds are everything to a car, when measuring actual ground distance traveled is still the critical metric along with fuel used. Measuring windspeed might be a nice addition when rationalizing the currently displayed mpg number, but it is a tertiary bit of information when it comes to fuel used and distance traveled.