What anchor size and chain length suit a Hallberg-Rassy 36?
I'm reviewing the ground tackle on my Hallberg-Rassy 36 before spending more nights at anchor. What anchor weight and chain diameter would you choose, and is 50 metres enough for Scandinavian cruising with a possible Mediterranean trip later?
Answer
For a Hallberg-Rassy 36, start with a 20 to 25 kg modern anchor and 60 metres of calibrated 8 mm chain, provided the chain grade and windlass specification are suitable. For extended Mediterranean cruising, carry 75 to 80 metres and choose the heavier anchor if it fits the bow roller and your windlass can handle it.
Check windlass and roller compatibility
Read the markings on the windlass gypsy, the pocketed wheel that grips the chain. Diameter alone does not establish compatibility. Link pitch and the specified calibration standard must also match, or new chain can jump or jam under load.
HR 36 equipment varies with build year and subsequent refits. Inspect the installed equipment before ordering:
- Gypsy: identify its chain size and standard from its markings or the windlass manual.
- Bow roller: check that the anchor shank seats properly and the fluke clears the stem, forestay fitting and pulpit during retrieval.
- Chain locker: check drainage and the clear drop below the windlass; a taller chain pile can obstruct retrieval.
- Existing chain: inspect the whole length for deep rust, worn crowns, distorted links and stiff sections.
Isolate the windlass electrically before putting fingers near the gypsy or checking underneath it.
Choose a modern anchor
The HR 36 is a substantial cruising yacht. Stores, water and cruising equipment add considerably to its published displacement. A 20 kg modern anchor suits everyday use; 25 kg adds margin for frequent overnight anchoring, exposed locations and a heavily laden boat.
A Rocna Original 20 or 25 kg illustrates this size range. A 22 kg SARCA Excel No. 5 is another candidate, subject to the manufacturer's sizing guidance and a physical fit check. Shank lengths and fluke geometry vary between designs, so anchors of equal weight may not fit the same roller.
When replacing an older CQR-type plough, consider setting behaviour as well as weight. A modern design that sets reliably in your usual seabed is a worthwhile improvement. Long-distance sailors often oversize substantially, sometimes to twice a manufacturer's basic recommendation. That is a cruising preference, rather than a universal sizing rule.
Keep a usable second anchor aboard. A heavier main anchor does not solve weed, poor seabed or inadequate swinging room.