PDR: 3/20/08 Pinwheel Technologies (C3) Heather Blaha Matt Fuxa Joey King Michael McConnell Domenic Tassoni

Brief Summary of Project Vertical-Axis Wind Turbine Vertical-Axis Wind Turbine Drag Based Design Drag Based Design Incorporates Only Two “C-Shaped” Turbine Components Incorporates Only Two “C-Shaped” Turbine Components Interchangeable Shaft Interchangeable Shaft

Last Week’s Action Items Order Parts Order Parts We have ordered our HDPE We have ordered our HDPE Due to blade attachment issues we have yet to complete any other ordering Due to blade attachment issues we have yet to complete any other ordering Complete CAD Modeling Complete CAD Modeling Problems: Problems: Attachment of blades Attachment of blades Status: 95% Complete Status: 95% Complete Image:

Last Week’s Action Items Researched different methods to attach the blades Sandwiching the blades Lose portability Attaching a block of HDPE to the shaft with pins and the blades to it by screwing them in Lose lift due to the flow back of air

Last Week’s Action Items Chose to use flanges but not to sandwich the blades Reinforcing the connection of the blade to the flange with a metal bar

Current Status

A little behind schedule: A little behind schedule: Still Left: Still Left: Strapping the battery down Strapping the battery down Securing all the items Securing all the items Including any intelligence components needed Including any intelligence components needed

Next Week’s Action Items Intelligence Aspect Intelligence Aspect Determine our capabilities and our plan of action Determine our capabilities and our plan of action Group meetings to discuss: Group meetings to discuss: LCD or Warning Light LCD or Warning Light Finish Ordering Parts Finish Ordering Parts Metals- Speedy Metals Metals- Speedy Metals Bearings, Flanges- McMaster-Carr, etc. Bearings, Flanges- McMaster-Carr, etc. Finish CAD Models Finish CAD Models

Questions? Questions?