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Old 07-02-2013, 03:52 AM   #174 (permalink)
bschloop
Master EcoModder
 
Join Date: Feb 2010
Location: Michigan
Posts: 304

sr185 bullet - '81 Yamaha SR185 streamliner
Team Streamliner
90 day: 96.35 mpg (US)

Sunny Colarado - '06 Chevrolet Colarado WT
90 day: 24.18 mpg (US)

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Quote:
Originally Posted by Grant-53 View Post
The concern that the height and length of the tail could affect stability in crosswinds is valid.
My personal concern with long straight tails has pretty much always been more about the length than the angle. to make a straight cone that doesn't get seperation at its front edge means you have to make it much longer than the compuund curve of a teardrop. the longer you get the more you get into skin drag, and other factors, as well as the weight of/in the tail lifting the front of the bike. even with a compuond curved tail, my bike is about 2-3 feet longer than the streamlining template. the straight tailed bikes are almost twice as long as the template.

P.S. I always look at the profile from the top. the side view profile is mostly irrelevant, save for clearance, and a single continuous shape.
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