SYSTEM CONFIGURATION

FIT & SIZING

Your anchor is your primary safety system. Configure it based on your vessel displacement and your mission profile.

Vessel Parameters

LOA (LENGTH OVERALL) 35 ft

DISPLACEMENT (LOADED) 8 t

MISSION PROFILE

☀

LUNCH

< 30 KTS

⚓

CRUISING

< 50 KTS

SYSTEM STATUS

RECOMMENDED CONFIGURATION

13kg

Engineered for 8t displacement in winds up to 30 knots.

HOLDING POWER (SAND) ~1,800 kgf

SURFACE AREA 690 cm²

SAFETY MARGIN STANDARD

The Complete System.

Original engineering geometry, unchanged for 30 years.

The Connector

We recommend a high-load “Flip Swivel” to ensure the anchor rights itself on retrieval. Avoid standard D-Shackles that can side-load.

The Chain

Knox anchors are designed to work with Grade 40 or 70 chain. Ensure your windlass gypsy is matched to your chain calibration.

The Snubber

Essential for all anchoring. A nylon snubber absorbs shock loads, protecting both the anchor’s hold and your deck hardware.

The Physical Fit.

Anchors are useless if they don’t stow. Check these 4 dimensions.

Fluke Clearance

Distance from roller axle to stem must exceed shank length.

Roll Bar Arc

Ensure hoop does not foul the pulpit or furler drum.

Roller Width

Channel must accommodate shank width + 10mm tolerance.

Locker Depth

For internal stowage, check max depth of the locker lid.

[ ENGINEERING SUPPORT ]

Don't guess. Verify.

Upload a photo of your bow roller. Our engineers will visually check compatibility.

Built by engineers, not marketers.

Knox anchors are the result of 30 years of conservative, engineering-led development in Scotland. No trends. Just physics.

The Anchor

Ready to upgrade? See detailed specs, dimensions and pricing.

The Fit

Find the right size and fit for your boat and boating style

The Evidence

Sceptical? See the raw testing data and video evidence.

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