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Old 04-09-2013, 04:57 PM   #34 (permalink)
COcyclist
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Join Date: Dec 2007
Location: NW Colo
Posts: 738

TDi - '04 VW Golf
TEAM VW AUDI Group
90 day: 53.2 mpg (US)
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Quote:
Originally Posted by NeilBlanchard View Post
Sweet, sweet cardboard engineering! it you can just fiberglass over the cardboard (post testing natch!), then you will have a great boattail. Borrow 3-Wheeler's design for the latch cover, and you'll be done.
X2! Someone has to do a "proof of concept" in the real world and you are mostly already there. I love the epoxy resin/foam creations on this site but if there was a cheaper, quick and dirty way to get similar results, We need to see it.

If it tuft tests OK, glass it. I think the regulars on this website all cringed a little when the Firefly boat tail ended up in the recycling bin.
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Quote:
Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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