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Knowledge Hub

Technical resources for the serious boater.

ISO 484/2 Class S: Why "Standard" Repair Isn't Enough

ISO 484/2 Class S: Why "Standard" Repair Isn't Enough

Technical

Most shops repair to Class I or II. Discover why Class S (Very High Accuracy) is critical for fuel economy and vibration elimination.

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Propeller Blueprinting: The "Hole Shot" Secret

Propeller Blueprinting: The "Hole Shot" Secret

Performance

Blueprinting (Lab Finishing) is more than repair—it's performance optimization. Learn how we thin blades and sharpen edges for 2-5 MPH gains.

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Ice Impact: The Invisible Killer of Stainless Props

Ice Impact: The Invisible Killer of Stainless Props

Maintenance

Hit floating ice? Your prop might look fine, but stainless steel hides microscopic fractures. We use dye penetrant and micro-welding to fix them.

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Understanding Propeller Slip

Understanding Propeller Slip

Performance

Slip is the difference between theoretical and actual speed. Learn how to calculate it and what your numbers mean.

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Aluminum vs. Stainless Steel

Aluminum vs. Stainless Steel

Technical

The definitive comparison. Aluminum is cheap and sacrificial. Stainless is expensive but offers superior performance and durability. Which do you need?

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Cavitation vs. Ventilation

Cavitation vs. Ventilation

Maintenance

Is your prop losing grip? Learn the difference between "boiling water" (Cavitation) and "sucking air" (Ventilation) and how to fix both.

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Border City Props logoBorder City Props

The only certified marine propeller repair shop serving Northern Alberta and Saskatchewan.

ISO 484/2 Class S Precision.

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  • Address: Bay 9, 176 Miller St, Blackfoot, AB T0B 0L0

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