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Circle S Machine

Hydro Foil

Hydro Foil

Regular price $75.00 USD
Regular price Sale price $75.00 USD
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Size & Style
Pe-Drilled Hols for Carriage Head Bolts

Performance Enhancing Aluminum HydroFoil

This product is designed to help with several common issues. 


Some benefits include:

Lower on plane speed

Less blowing out

Less prop cavitation

Ability to run prop higher


Each hydrofoil comes with the needed stainless steel hardware


There are 2 styles that are available. The difference is strictly a personal preference in appearance! The most common style has cutouts. The theory behind the cutouts in high performance applications is that they allow the propeller to spin higher RPM’s. 

Sizing:

Small -  9.9-35 HP

Medium - 40-60 HP

Large - 60-90 HP or large gear case

XL - ¼” thick designed for 90 HP and more 


Common motor suggested sizing:

Small - 10-¼” and smaller propellers

Yamaha 25, mercury 25, all true 25 and under HP


Medium - 10-¼” to 11-¾” propeller

Mercury 40-60 hp non CT (Command Thrust or Bigfoot) 2 stroke and 4 stroke

Yamaha 40-60 4 stroke; 40, 50 2 stroke

Tohatsu “mega”; 40-60 2 stroke and 4 stroke

Suzuki DT25


Large - 11-¾ to 14-½” propellers, up to 90hp 

Any big gear case such as command thrust, or Bigfoot  

Yamaha 60-90 2 stroke; 70-90 4 stroke

Tohatsu 90 2 & 4 stroke

Most Evinrude, Johnson, OMC 40-90hp, “big gear case” 

Extra Large - same basic design as the large, just thicker, and a larger opening to slide around the foot. Designed for larger motors, with larger lower units, and  more stress on the plate  


NOTE: All powdercoated, and XL plates are custom, and made to order. Please allow up to 7-10 business days for shipment.

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