Hi Clive,
I can appreciate your desire to build for a "look" as well as practicality.
I just personally gravitate to practicality first, then "make it look good"
afterwards.
A Kammback is an automotive based design named after it's Austrian
auto engineer originator. The most aero efficient design is the teardrop
shape with a long tapered tail on it [To an endpoint.]. Applying that to
autos wasn't very practical for use. Kamm discovered that you can still
garner almost the same amount of aero benefit if you cut off the tapering
tail [Again taper not greater than 15 degrees.] at the point along it where
the cross-section is equal to about 50 percent of the maximum cross-sectional
area of the preceding body structure. Here is a link to the Foamie Section's
Aero thread, that has more on that and some other info that may, or may not,
be useful for you with your build:
http://tnttt.com/viewtopic.php?f=55&t=49036And angib is a UK member of the forum here, who's an engineer, and also has
a section in the Design Resources area.
Cheers,
Norm/mezmo
If you have a house - you have a hobby.