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Old 05-11-2022, 08:13 PM   #16 (permalink)
sregord
EcoModding DIY aer.or
 
Join Date: Oct 2020
Location: Virginia City, NV
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freebeard,
I have reviewed the NASA aerodynamic data... and it is clear that a boat-tail or folding semi trailertail or Rocketail would get a 11.5' X 8'+ rounded nose brick a more fuel efficient exit.
Ours is a '02 Rexhall Aerbus XL3100. its a measured 32' long. w/44,000miles. It was cheap used, & its nice sitting up front watching the world go by.
I've done some weight reduction. and added vortex generators to the rear, so far.

Honestly I've been a little "abashed" ... most here are projecting on 30mpg autos up to 50 & 60mpg. The first thought why bother chasing a +10% goal of 9mpg. when the newer class Bs might be getting 21mpg. of course those are selling for 10xs what I have in Moby.
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