Purposefully fudged schematics

[woodelf]

Robert Feldman wrote:
> Leonardo DaVinci put errors in the drawings for his "tank."
> 
But then how many people have built it!
Ornithopter's are a lot more fun. :)
The unrealized dream of aviation -- man powered Ornithopter.
http://web.kyoto-inet.or.jp/people/kazuho/index-e.htm
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To get back on topic about babbage's drawings,
from what I read it was mechnical design that
could not be produced with 18th century mechanical
enginering.