Robert Coletta           ENGR-1020-01           Group 2               5/3/07






Robert Coletta

Gregory Gobeli

Jonathan Cooper

Gustavo Aviles



            Starting Wind Turbine                                  Improved Wind Turbine





Turbine Construction Details

Turbine Costs

Turbine Test Procedures

Turbine Open Circuit Voltage Test Results

Turbine Power Curve







Turbine Construction Details


Detail Description

Detail Photo

Our Group constructed and successfully tested the Picoturbine in its original conception, achieving the highest power output of any of the class groups. Although we originally discussed modifying the original design, we eventually decided to devote our time developing a horizontal, drag-based design, due to the constraints and limitations of the Pico design.




After deciding to expand our HAWT design to include a total of 8 coils and 16 magnets, member Greg Gobeli assembled the photographed armature. We decided to mount the magnets on twin stators with the coils attached to the rotor. Power would be transmitted via the coils soldered to the copper axle transferring power  to flexible steel brushes, and on to power terminals.



Each stator could be adjusted in proximity to the rotor to maximize magnetic field strength.

Each stator disk was constructed of plexiglass with cutouts for the insertion of eight magnets.

Turbine was bolted to baseplate with terminal connections.

Rotator consisted of bolted-on plastic blades cut and attached to discarded 23.5 inch bicycle wheel. Blade pitch was adjustable and we lubricated bearings in wheel cage for maximum efficiency.

Power would be transmitted from perimeter of wheel with light belt using wing-tip to center speed ratio.

Wheel was mounted with adjustable tensioner to set appropriated variation in belt tension.

Eventual testing demonstrated maximum power transmission with a downwind setup with blades pitched at approximately 45 degree angle and loose tension on the drive belt.








Turbine Costs:


                                    2 Picoturbine kits              $80

                                    8 Additional magnets        $12

                                    2 Pulleys                            $12

                                    2 Nuts for axle                   $ 2










Turbine Test Procedures:



We positioned the completed turbine approximately 6 inches away from a window fan controlled by a rheostat that allowed us to vary the speed. We used a hand-held digital anemometer to gauge the equivalent wind speed. Testing was done at various wind speeds with no load, with a 100 ohm load, and with a 200 ohm load. Although the internal resistance of our turbine was measured at 55 ohms, we decided to use the 200 ohm load for standard testing.



Turbine Open Voltage Test Results:







Turbine Power Curve:






Power output was predictable along the standard curve with power increasing exponentially along with corresponding increases in wind speed. Still, considering the quality, size and amount of materials that went into this project, power output was slight, implying increased size and efficiency of wind turbine would lead to increased cost-effectiveness and practicality.


Team Members:                         BACK TO TOP


 Robert Coletta





43 Barstow Road

Warwick, RI  02888






Career change as Electrical engineer or technologist




BS in Pharmacy – URI  1978


Certificate in Computer Network Maintenance – CCRI


Awards received

Dean’s list



Music performance and recording; computer and electronic tinkering; renewable energy (wind & photovoltaic) development; travel



English, French (4 yrs), Italian (2 yrs)


Work Experience


Professional Membership

Employed full-time as Hospital Pharmacist



Rhode Island Society of Health System Pharmacists







Gregory Gobeli                                               BACK TO TOP

Gregory A. Gobeli






154 Orchard St.

Cranston, RI 02910

H: 401-338-2555

W: 401-294-4511 Ext. 3371




To further my career by pursuing a Bachelors degree in Mechanical Engineering.


2006-Current  Community College Rhode Island             Warwick, RI

        Working toward Engineering Transfer Degree

1998-2006      Community College of the Air Force Montgomery, AL

        A.S. Degree in Aircraft Systems Maintenance Technology

1993-1997      Watkins Mill High School                 Gaithersburg, MD

        High School Diploma

Work Experience

2002-Present     Toray Plastics (America), Inc.         N. Kingstown, RI

 Nightshift Maintenance Technician

     Troubleshooting, repairing and preventive maintenance on a wide variety of electrical, mechanical, hydraulic, pneumatic systems.


2002-Present     Rhode Island Air National Guard    N. Kingstown, RI

Aerospace Propulsion Journeyman

     Troubleshooting, repairing and preventive maintenance on Rolls Royce AE 2100D3 turboprop engines and Dowty Propellers.


1998-2002        United States Air Force                   Hurlburt Field, FL

Aerospace Propulsion Journeyman

     Performing intermediate maintenance on Allison T56 turboprop engines, General Electric T64 turboshaft engines, and Hamilton Standard propellers.


Currently performing frame-off restoration on 1969 GMC truck.

Hobbies include welding, repairing cars, home improvement projects, and motorcycling.




Jan 2005   DLI Engineering Expert Alert Vibration Analysis Course

Jun 2005   Rolls Royce AE 2100D3 Familiarization Course

Jonathan Cooper                                      BACK TO TOP

Jonathan Cooper                                                                                    

Personal Information

34 Knowles Street

Pawtucket, RI 02860

House phone (401 725 6122)

Cell Phone   (401 432 5587)




·        Strong  skills        ,Detail oriented

·        Committed to customer service                        Solid organizational and interpersonal skills

·         Microsoft Word                                                        Excel

·         Imaging                                                                   Access

·         PowerPoint

·         Photoshop                                                              


Enthusiastic, self-motivated,  interpersonal skills, great cash handling skills, excellent organization abilities, the passion, drive and commitment to work in an expanding environment, also have the ability to work flexible schedules,



Community College of Rhode Island          2005 to present

Student Electric Engineer


Bensalem High School                     2001 to 2005

High School Diploma


Work Experience

Bill's Pizza                    Sales Representative/ Driver               March 2006- present

·        Provide customer service

·        Conduct sales

·         Handle daily cash

·        Make nightly reports.


Town Pizza                   Customer Services Representative                   Dec. 2005- March, 2006

·        Provided efficient services to customers

·        Executed daily cash sales

Gustavo Aviles                                   BACK TO TOP




















42 Fifth Street






East Greenwich






RI, 02818, USA












(401) 885-1217






(401) 339-5978

































Civil Engineering











High School






















Awards Received:

Varsity soccer goalkeeper















Interest and activities:

Music, Philosophy, Math










Spanish, English
















Work experience:
























Volunteer experience:

Church instructor and guitar player








Professional memberships:












Accreditations and licenses:

RI driver’s license