[python] geometry and small wheels

Hi, Bernard, Dirk, and Paul

in my green python the center pivot is in line with the wheel axles and it 
works pretty good, yet I want to compare it to Jürgen´s python, once we 
will meet on a lonely road changing our bikes.

To drive a python backwards I can not imagine. There exists a page in 
the net, where lean steered drive has been tried, but without much 
success. With three wheels this is possible.

I agree with Dirk´s explanation, the trailer force of the legs keeps the 
python in line.

Hi Paul, I want you to encourage to build a 20 '' python. Take it as a 
prototype, as I did with my first python. A long leverarm with the feet is 
advantage I believe.

So today I did the next 20 km training on my green python, and I love it 
and I am very happy. I don´t use the scaterollers any more. I managed 
to start without them. The start is the most difficult, and it is easier 
when the road goes a little bit downhill. Uphill starting does not yet 
work. The arms I use for balance (and feeling the grass passing the 
hands) :-). 

I found out that when the snake is going suddenly to the left I have to 
lean even more to the left side, this stabilizes the beast. This feels like 
falling down now completely, but the opposite happens. The same I 
have to do in curves.

Very new movements and I begin to love them.

Greetings   Jürgen from Giebelstadt

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