⚓ Safety & Anchoring
Safety gear saves lives — but only when it is the right gear, properly maintained, and actually used. Anchoring is the skill that most differentiates experienced from inexperienced cruisers. This page covers ground tackle, life rafts, EPIRBs, PFDs, man-overboard systems, bilge pumps, and fire safety.
Jump to: Anchors & Ground Tackle | Windlasses | Anchoring Technique | Life Rafts | EPIRBs & PLBs | Life Jackets & PFDs | Man Overboard | Bilge Pumps | Fire Safety
Anchors & Ground Tackle
Modern High-Holding Anchors
- Spade Anchor — consistently rates at or near the top in independent holding tests (Good Old Boat, Practical Sailor, SAIL Magazine); stainless or galvanized; rolls upright quickly on first set; excellent in sand, mud, and grass
- Rocna — popular cruising anchor; excellent holding; distinctive roll bar keeps the anchor oriented for setting; New Zealand-designed; widely used by US cruisers
- Mantus — Sarasota, FL — made in USA; folding design for easy storage; excellent holding tests; stainless or galvanized; competitive pricing
- Manson Supreme — popular alternative to Rocna; good holding; competitive price
- Danforth / Fortress — aluminum lightweight; exceptional holding in sand and soft mud; ideal as a kedge anchor or second hook; not a primary anchor — does not reset well if wind shifts significantly
Chain & Rode
- Acco Chain — made in USA; G4 and BBB anchor chain; reliable domestic manufacturer
- BBB (3B) chain: Larger links; works with most manual windlasses; traditional choice for sailboats
- G4 (High Test) chain: Smaller links, higher strength per weight; preferred for electric windlasses; lighter for the same strength
- Chain sizing: 5/16″ G4 for boats under 35 ft; 3/8″ G4 for 35–50 ft
- All-chain vs. rope-chain combination: All-chain is standard for serious cruising; a rope-chain combination (30–50 ft chain + nylon rode) is lighter and acceptable for daysailing and coastal use
- Replace chain when 10–20% of links show measurable wear (stretch); inspect annually
Anchor Sizing Guide
- Boats under 30 ft: 15–20 lb anchor; 150–200 ft rode/chain
- Boats 30–38 ft: 25–35 lb anchor; 200–250 ft rode/chain
- Boats 38–45 ft: 35–45 lb anchor; 250–300 ft rode/chain
- Boats 45–50 ft: 45–60 lb anchor; 300 ft rode/chain
- When in doubt, go one size up — an oversized anchor does nothing but provide extra security
- A second (kedge) anchor is strongly recommended for any offshore or extended cruising; Fortress FX-16 or Danforth 22S in aluminum
Anchor Snubber
- A snubber is a length of nylon rope (not chain) attached to the anchor chain at the bow — it absorbs shock loads and protects your windlass from jerking
- 15–25 ft of 5/8″ three-strand nylon with a chain hook
- Always use a snubber when anchored — your bow fitting and windlass are not designed for the shock loads of waves without it
- Defender — Anchor Snubbers
Windlasses
Electric Windlass Brands
- Lewmar — V700, V1000, V2000; the most common brand on US production sailboats; good reliability; easy to service; anchor rollers and accessories available
- Maxwell — New Zealand; HRC and VWC series; excellent offshore reputation; popular on cruising boats worldwide
- Lofrans — Italian; Tigres, Kobra, and Project series; popular on European boats; good quality
- Quick (GOIOT) — Italian; Genius series; competitive pricing; good for cruising boats
Windlass Installation & Maintenance
- Windlasses draw 50–100 amps during operation — run dedicated heavy-gauge wire (2/0 AWG for most electric windlasses) directly from the battery bank with an appropriately rated fuse or circuit breaker at the battery
- A foot switch at the bow and a remote at the helm are both useful — install both if possible
- Never use the windlass motor to break the anchor free — motor forward instead to reduce chain tension, then windlass in the slack
- Flush the wildcat with fresh water after every use in salt water
- Grease the shaft annually with waterproof grease
- Most windlass failures are electrical — check connections and fuse first
Anchoring Technique
Scope — The Most Important Variable
- Scope is the ratio of rode paid out to the depth of water (measured from the bow roller, not the surface)
- Minimum for light conditions: 5:1 scope
- Standard for overnight: 7:1 scope
- Heavy weather / exposed anchorage: 10:1 scope
- Example: anchoring in 10 ft of water with 5 ft of freeboard = 15 ft total depth from bow roller; for 7:1 scope, pay out 105 ft of chain
- All-chain rode allows less scope than rope-chain because chain sags to the bottom and provides a horizontal pull at the anchor — 5:1 is adequate all-chain where 7:1 is needed for rope-chain
Setting the Anchor
- Power slowly astern while paying out chain; let the anchor settle before loading it
- Once scope is out, power in reverse at 1,000–1,500 RPM for 30 seconds — watch the chain for loading and watch a fixed reference for drag
- A properly set anchor will hold a 35 ft boat in 20 knots without any movement
- Mark your chain at 25, 50, 75, 100, and 150 ft with paint, zip ties, or chain counter — you cannot anchor properly without knowing how much chain you have out
Anchor Watch
- Set an anchor watch GPS alarm whenever anchored overnight; most chartplotters and phone apps (Anchor!, Garmin) have this feature
- Vesper Marine Cortex M1 has a GPS anchor watch with smartphone alerts — alerts even when your phone is not on the app
- Check your anchor bearing on two fixed objects when you first set and re-check periodically, especially if wind shifts or increases
Difficult Bottom Conditions
- Thick grass (Chesapeake, Florida): Try a Danforth — the thin flukes cut through; most other anchors plane over grass
- Hard sand / rock: Any good modern anchor; increase scope; add snubber
- Soft mud (Gulf Coast, some Chesapeake areas): All modern anchors work well; the Spade and Rocna are particularly good; set slowly and allow the anchor to bury deeply
- Kelp (Pacific Coast): Challenging; a Danforth often works better through kelp than bowl-style anchors
Life Rafts
US Life Raft Manufacturers
- Givens Marine Survival — the most respected US life raft manufacturer for offshore sailors; their Ocean-class raft is used by the US Navy and USCG as well as offshore racers; made in USA; significant emphasis on stability in offshore conditions
- Winslow Life Raft — Rockledge, FL — made in USA; Super-Light series popular with offshore sailors; competitive quality and service
- Survival Products — Florida; US manufacturer; coastal and offshore class rafts
International Brands
- Viking Life-Saving Equipment — Danish; dominant offshore racing market; SOLAS and recreational models; serviced nationwide at certified stations
- Revere Survival — US-distributed; OceanStar series; competitive pricing
- Switlik — Trenton, NJ — made in USA; offshore class
Life Raft Essentials
- Coastal vs. Offshore class: Coastal rafts are lighter and less equipped; offshore rafts include a canopy, ballast bags, double floor, and a full SOLAS-equivalent equipment pack. For any offshore passage, use an offshore-class raft.
- 4-person minimum: Always buy a raft rated for more than your crew — a 4-person raft for a 2-person crew; a 6-person for a 4-person crew. Life raft ratings are optimistic.
- Valise vs. canister: Canister stores better on deck; valise is lighter and can be stored below. Both are appropriate; deck-mounted canister with float-free cradle is safest.
- Service interval: 3 years for most manufacturers' recommendations; ISAF offshore rules often require 3-year service or annual inspection. Find a certified service station and follow the schedule — a life raft that fails to inflate is worse than useless.
- Register with the manufacturer for recall and service notifications
EPIRBs, PLBs & Emergency Beacons
Beacon Manufacturers
- ACR Electronics — Hollywood, FL — made in USA; GlobalFix Pro EPIRB and ResQLink PLB series; the market leader in the US; GPS-integrated models locate within 100 meters; excellent battery life; compliant with all current FCC and international standards
- Ocean Signal — UK; RescueME series; smaller form factor; good offshore reputation; growing US market presence
- McMurdo — established brand; SmartFind series; used on commercial and recreational vessels
EPIRB vs. PLB — Which Do You Need?
- EPIRB: Vessel-mounted; can auto-activate (float-free) if the boat sinks while crew is below; mounted in a bracket near the companionway or on deck; required for offshore sailing (ISAF Category 1 and 2 races require an EPIRB); signals for 48+ hours
- PLB: Personal; worn on lifejacket or stored in pocket; manually activated; shorter battery life (24 hours); must be registered to an individual; every offshore crew member should carry one
- Best practice: One vessel EPIRB mounted in a float-free bracket + one PLB per crew member = maximum coverage
Registration & Maintenance
- Register your EPIRB/PLB: Free registration at beaconregistration.noaa.gov — an unregistered beacon causes massive SAR problems; rescuers cannot identify you without registration
- Update your registration whenever you change boats, crew, or contact information
- Test the beacon using the built-in self-test function (does NOT transmit to satellites) on the first of every month
- Battery must be replaced on the date stamped on the battery; a beacon with an expired battery may not work
- Hydrostatic release on float-free EPIRBs must be replaced on schedule (typically 2 years) — it is the mechanism that releases the bracket underwater
AIS EPIRB / MOB Devices
- ACR MOBi — personal MOB AIS and DSC device; alerts other AIS-equipped vessels immediately; excellent for crew safety offshore
- Ocean Signal MOB1 — crew overboard beacon; AIS MOB signal plus DSC distress; activates on water contact
Life Jackets & PFDs
Inflatable PFD Manufacturers
- Mustang Survival — Vancouver, BC / US distribution; Khimera and Catalyst lines; excellent quality; made in North America; auto-inflate and manual inflate models; widely used by US Coast Guard and professional mariners
- Stearns / SOSPenders — Dayton, TN — made in USA; inflatable and foam PFDs; good value; widely available
- Spinlock — UK; Deckvest series; the choice of offshore racers; 170N and 275N models; superior harness integration; comfortable for extended wear
- Crewsaver / Survitec — UK; offshore-rated PFDs; SOLAS-compliant; used on commercial vessels and offshore races
PFD Types
- Type I (Offshore Life Preserver): Highest buoyancy (22 lbs); will turn an unconscious wearer face-up; required in commercial and offshore ISAF categories; bulky to wear
- Type II (Near-Shore Buoyant Vest): 15.5 lbs buoyancy; may turn unconscious wearer face-up in calm water; adequate for inshore daysailing in protected waters
- Type III (Flotation Aid): 15.5 lbs; will NOT reliably turn unconscious wearer face-up; comfortable; appropriate for daysailing with immediate rescue available
- Inflatable PFDs: When inflated, provide 35–275 N (8–62 lbs) buoyancy; most comfortable for extended wear; require care and annual service
PFD Harness & Tether System
- Offshore sailing requires a combined PFD and safety harness system — the tether clips to jacklines running fore-and-aft; keeps you on the boat even if you fall overboard
- Tethers should be no longer than 6 ft (long tether = you can still end up in the water); 3 ft for strong conditions
- Jacklines: 1-inch tubular webbing or spectra jackline tape run from bow to stern; attach on deck eyes; flat webbing keeps your foot from rolling off the jackline
- Rule: clip in before you go on deck at night; clip in before conditions deteriorate; don't wait until you "need to"
- Spinlock — best harness and tether systems for offshore sailors; 2-clip tether allows you to move forward and back without unclipping
PFD Service
- Inspect inflatable PFDs annually: check oral tube, cylinder for corrosion, arming mechanism expiration date, bladder for leaks (oral inflate and leave overnight)
- Rearm cylinders according to manufacturer schedule (typically every 3 years or immediately after any activation)
- Store PFDs out of UV when not in use; UV degrades bladder material
Man Overboard (MOB) Equipment
MOB Recovery Systems
- LifeSling — the standard MOB rescue system for offshore and coastal sailing; horseshoe buoy connected to 125 ft of floating line; throw to victim, tow to boat, hoist aboard; required in many offshore racing classes
- Ocean Signal MOB1 — AIS and DSC crew overboard beacon worn on PFD; activates on water contact; alerts all nearby AIS vessels and activates DSC distress on your VHF radio simultaneously
- ACR MOBi — AIS MOB personal device; immediate position broadcast to AIS receivers
- Traditional horseshoe buoy with drogue, strobe, and flag on a stern bracket — required by USCG on many documented vessels; standard equipment on cruising boats
MOB Procedure Basics
- Immediate actions: Shout "man overboard," throw a life ring with 100 ft of line immediately, designate one crew member to keep eyes on the person — never look away
- Mark the position: Press MOB button on GPS/chartplotter; note the bearing and distance; GPS position is not exact — the person has drifted
- Get back quickly: In cold water (Pacific Northwest, North Atlantic), hypothermia can incapacitate in 15–30 minutes
- Practice: Run MOB drills with crew; throw a fender overboard and practice recovery in different conditions — dockside practice is very different from the real situation
- See the Boater Education page for MOB course recommendations
Bilge Pumps
Bilge Pump Manufacturers
- Rule Industries — Gloucester, MA — made in USA; the standard for automatic electric bilge pumps on production sailboats; Rule 500 (500 gph), Rule 1100, Rule 2000; extremely common; parts widely available
- SHURflo — electric pumps; also makes excellent pressure water systems
- Jabsco — manual and electric; flexible impeller pumps also used for raw water engine cooling and deck wash
- Attwood — bilge pumps and accessories; good value; widely available
Bilge Pump System Requirements
- USCG minimum: One manual bilge pump accessible when the companionway is closed (or one electric automatic bilge pump)
- Best practice for coastal: One 500+ gph automatic electric (with float switch) + one manual Rule 25 hand pump (operable from cockpit through a deck fitting)
- Best practice for offshore: Two separate electric pumps (500 gph automatic + 1,500+ gph manually-switched) + one large manual pump (Rule 25 or equivalent, cockpit-accessible)
- Wire the electric bilge pump to always-on power (not a switched circuit) — the bilge fills whether the main switch is on or not
- Install a bilge pump alarm (high-water float switch) wired to a buzzer at the helm
- Inspect the float switch annually — they corrode and fail; a stuck-on float switch will drain your batteries
Fire Safety
Fire Extinguishers
- USCG requirements: Boats under 26 ft: one B-I extinguisher; 26–40 ft: two B-I or one B-II; 40–65 ft: three B-I or one B-II plus one B-I
- Marine fire extinguishers must be USCG-approved (UL listed for marine use)
- Fixed engine room suppression: Highly recommended on any diesel auxiliary; automatic Halon or FM-200 system activates if fire is detected; standard on offshore racing boats
- Inspect extinguishers annually; replace if pressure gauge is below the green zone; recharge within 6 years regardless of use
- Locate one extinguisher at the helm accessible from the cockpit, and one at the entrance to the engine compartment
Fire Prevention
- Fuel system: inspect every fuel hose annually for cracking, hardening, and softness; replace on a 10-year schedule; double-clamp all hose connections
- Propane: use a dedicated propane locker that drains overboard (propane is heavier than air — it sinks to the bilge and will explode); install a propane solenoid shutoff at the tank and always close it when the stove is not in use
- Electrical: marine-grade tinned wire, properly fused; a shorted wire in the bilge area is the most common cause of boat fires
- Lithium batteries: see the S/V Theros Battery Fire case study in the Captain's Locker for a real-world account of a lithium fire at sea
- Smoke detectors: install one in the main cabin and one in the engine room; replace batteries annually; use marine-grade or sealed units