Quote:
Originally Posted by euromodder
Don't you have windy tanks on record to compare this one to ?
Windy days is when a streamliner should shine - if not in absolute numbers then at least in relative mpg numbers.
Good to hear that. 
Let's hope they stay safely put for the whole trip.
Sorry to hear the Bonneville attempt has fallen through after all the work you've done. 
Let's hope the truck stays good for another year. |
Wind in Texas can have extreme variability:direction and amplitude,varying with location in real time.Without on-board data acquisition it would be virtually impossible to 'know' what was happening 'outside' the vehicle.
Throw in grade effects,curve resistance,etc. and you've got such a can of worms,it would be impossible to make any sense of it.
That's why the SAE is very prudent about road-testing:
*Flat roadway
*No grade
*No wind
*No rain or other precipitation
*No curves
*Constant velocity
*Fully warmed up (22-miles at 50 mph)
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For us,maybe all we can expect,is that over a long series of tests,a 'trend' emerges from the signal-to-noise ratio of the data scatterplot.
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On the Denton-to-Albuquerque leg I'd never made this run with the trailer.With the topography of the route and wind spectra I knew I was going to be hammered at the gas pump.This turned out to be my lowest MPG tank.So I guess that.intuitively my senses were correct.
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Check the data for this tank in the up-coming post and you can see what I was facing.