Drop-in Hydropower with Hydrovolts Flipwing Turbine
Drop-in Hydropower with Hydrovolts Flipwing Turbine
Drop-in Hydropower with Hydrovolts Flipwing Turbine
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Removed Next Day<br />
Turb<strong>in</strong>e operated steadily;<br />
Rotor had no weeds on it;<br />
The frame caught weeds;<br />
Future turb<strong>in</strong>es have no frame.