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The Miniature Steam range of brass propellers were designed using advanced surface modelling software.The designs were finalised after an exhaustive round of computer modelling and actual testing on a range of model boats before making precision metal dies. These dies,and the investment casting (lost wax) process used has resulted in a final product so accurate that balancing of the propeller is not required for most scale boat applications.
The special marine brass alloy used in the manufacture of the propellers gives a rich brass colour, and has the strength of mild steel. The propellers are three bladed, in both right and left hand, and diameters from 30 mm to 75 mm in 5 mm increments. All sizes have M4 thread.
For more information see Library Guide 25.