[python] Re: Stability Theory

Hi mad recumbent scientists ;-)
(I assume that this mailinglist is the most weird recumbent
hombuilder forum in the internet - but I love it)

Playing around with Ray´s app I got confirmed at least one
thing, that is noticeable in real life too:

The more weight is on the front wheel or pivot, the more
stable the python is when coasting.

Then we could just prolong the wheelbase! 

I have another proposal:
Why not move the pivot about 20 cm towards the rear - that
means behind the seat.

High time to build an experimental scrap python - I will call
it PX.
Experiments sceduled so far:

- pivot angle of 60 deg and smallish negative trail
- pivot moved 20 cm backward
- rubber pivot
- four bar linkage pivot

Any other suggestions are welcome.

Cheers,
Jürgen.

PS:
http://tam.cornell.edu/~ruina/hplab/downloads/Bicycle_papers/Hand_Thesis.PDF 
Link not worky.

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