you can cross reffrence the key features and stats of multiple engines at once. Give it ago! 
Duoprop propellers Type FH
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The stainless steel option for high performance gasoline and diesel engines with DPS-B drive. Only FH and IH series propellers have the helical splines. The FH propeller is designed to transfer all thrust from the propeller to the main body of bushing. This ensures that the propeller cannot walk forward on the bushing. The propellers are electrically insulated from the drive to prevent galvanic corrosion.
