Volvo Duoprop 21661927 IH7 Rear
Type I and IH – Aluminum Duoprop propellers
The patented blade geometry and large active propeller diameter provide optimal performance and fuel efficiency over the entire speed range as well as smooth running, excellent grip and maneuverability. Squeeze casting and special high-strength aluminum alloy makes them stronger and more durable than traditional die-cast propellers. Four layers of paint ensure excellent anti-corrosion performance. Type I has straight splines, type IH has helical splines.
• Engineered to optimize performance, durability and comfort.
• Patented blade geometry, large active propeller diameter.
• Strong and durable high-strength aluminum alloy.
• Three-blade front propeller and four-blade rear propeller.
Note! Always use type F or FH stainless steel propellers in engines exceeding 240 hp or capable of speeds above 38 knots (45 mph).
|No. of Blades||4|
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