Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.

Photographer: Cosmos Mariner
Taken: July 13, 2015
Caption: Marker detail: Installing new minimum gap turbine, February, 1999
Additional Description: If you flex a soda pop can back and forth, it eventually breaks due to metal fatigue. After 60 years metal fatigue caused the old turbines to break too. Repairs became so freuent that replacing all of the turbines made good economic sense.

The new minimum gap runner turbines nearly eliminate gaps between the blades and the hub as the blade angles change. This reduces injuries to fish and improves power production efficiency.
Submitted: February 15, 2018, by Cosmos Mariner of Cape Canaveral, Florida.
Database Locator Identification Number: p416747
File Size: 0.926 Megabytes

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