I know nothing or next to it, but I am going to build myself a Velomobile/trike. This site looks like it has lots of the info I need to learn.I am building a work shop out of a 40 ft shipping container right now so I will have a proper work space. It will take me some time, I will post again after I have digested the info here and am ready to build.
The last thing I built was a backhoe a few years back so I do have a few skills, its just a matter of will they transfer over to this, anyway I better get back to reading......