I have prepared some notes on the geometry which are too large to attach, so you can download the PDF here http://jetrike.com/Jetrike-Theory-of-Operation.pdf
These are handwritten notes, but capitalized to try and make my writing as legible as possible.
Attached is a photo of the latest geometry simulation, which allowed me to isolate each variable and test its impact on the self centering effect. As noted in the PDF above, only one angle really mattered.
I now feel pretty confident with my trike design. The bearing housings are at the local farm engineering firm being lathed. They will be ready early next week. I have all the metal, and plan to cut it all out this week end. Once I get the bearing housings, I will start welding everything together.
Stay tuned :-) -h