游艇百科
Keelbolts
Keelbolts on sailing yachts: survey access and corrosion clues, FairHelm judgment on torque claims, and limits on guessing life afloat.
这是什么
Keelbolts (keel studs) are the fasteners that join an external or stub keel to the hull structure, carrying grounding and sailing loads into the boat.
Anchor
FairHelm meets sump lids that hide corroded heads, painted-over weep stains, and torque stickers without dated workshop notes on Baltic boats.
FairHelm judgment
FairHelm judgment: inaccessible or heavily corroded keelbolts are a haul-out and negotiation item. A dry bilge claim does not prove bolt health.
Limits
We do not invent replacement intervals as universal law. Alloy, bedding, and grounding history change life.
常见问题
Q: Should every survey drop all keelbolts?
A: Scope varies. Suspicions and access decide sampling versus full drop.
Q: Does fresh bilge paint prove bolts are new?
A: No. Paint can hide stains. Ask for workshop records.
Q: Are keelbolts only an iron-keel issue?
A: No. Lead keels use bolts or studs too.