Helix vertical wind turbine

All right, so we started with researching various wind turbines, their structures and qualities, and picked one type that we thought would suit our conditions and we liked the most. We found many interesting ones, but we decided to stop at the helix vertical axis wind turbine. Looks like this:

We like it because:
- It has maximum surface area, which allows to get more energy out of wind power;
- It can be installed on lower heights;
- It moves silently;
- It's safe for birds because of its shape;
- We just like the way it looks :).
So we almost finished our model of the turbine. The materials are probably going to be entirely different for the real turbine, but we're going to make sure that the basic concept is right.
What about everyone's part in the project we decided that every member will do some research on wind turbines. Ernest is going to research engines and generators. Nick is going to think of materials that we could use for building the turbine. He also promised to find parts for the generator. Don and Desi are going to work on the structure of the turbine. Don is good at scheming and he has a good 3d vision on paper, so they are going to research the essential parts of the turbine, connections between them and all the technical part of it. And Zhanar is going to work on theory, formulas, numbers, calculations, proportions, etc. We should never forget about math! :) By the way when somebody finds something on somebody else's part, they'll just post it here, and we'll all take a look at it. That's pretty much what we have for now.