USS Henley (DD-39)- Marine Reduction Gear- Gear Center & Rim - NARA - 75842132.jpg
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USS Henley (DD 39) Marine Reduction Gear Gear Center & Rim NARA 75842132, USS Henley (DD-39), US National Archives series: Alphabetical Series of Ship Engineering Drawings, Images from the National Archives and Records Administration, US National Archives location: other, USS Henley (DD-39): Marine Reduction Gear: Gear Center & Rim
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reduction gear high gear reduction reducible third gear reduce in gear second gear reduced gear undercarriage first gear decrease diminution shrinkage decreasing reductionism reductive gearing landing gear leverage decreased heroin