These are fiberglass filled plastic propellers. Adding fiberglass makes them more ridged/stronger then a propeller made from plastic only. These are a low cost alternative to metal boat propellers. These don't need to be balanced or sharpened. We recommend these for 10K-25K RPM Range.
Offered in 4 Sizes, all for 3/16" shafts.
47mm Diameter, Pitch 1.4x47=65.8mm or 2.59"
52mm Diameter, Pitch 1.4x52=72.8mm or 2.87"
55mm Diameter, Pitch 1.4x55=77.0mm or 3.03"
57mm Diameter, Pitch 1.4x57=79.8mm or 3.14"
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