This uses 2 motors geared up 120 to 80 (so 3/2).
Weight? I'm not sure... but it has 2 motors and a battery. They rest of the parts don't add too much.
The red marks on the pole are 1 foot apart so you can calculate speed and ascent time. I will do the calculation when I have time and post back
Lots of pics here for construction details
https://docs.google.com/leaf?id=0B7M...NDM0ZTY5&hl=en