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Garage, Galley & Hangar
GG&H
Technical Owner's Manual
Vessel Profile34' 4" overall"cl. bowsprit and boomk"Photograph pending
FIG. 1
34' 4" overall"cl. bowsprit and boomk"
ISLAND PACKET YACHTS
Island Packet 31
The Complete Owner's Reference
REV 1.0 · 145 PP
SAILBOAT · 34' 4" overall"cl. bowsprit and boomk"
GARAGE, GALLEY & HANGAR
9 chapters · 59-term glossary · 129-entry index
Sailboat · Island Packet Yachts

Island Packet 31

Bob Johnson's first clean-sheet design (1983 to 1989) and the boat that set the Island Packet template: a beamy, heavily built, shoal-draft full-keel cutter with a solid hand-laid glass hull and encapsulated ballast, meant to carry a couple in comfort rather than win races, and honest about being slow in light air and shy in reverse. It is genuinely overbuilt, with no chronic hull-blister or deck-delamination history on the fleet, but this reference is specific about the failure modes that do matter: the buried 304-stainless chainplates that are the defining survey item, an encapsulated iron keel that punishes a hard grounding, and a foam-cored rudder prone to water intrusion.

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A sample of what's inside

Specifications

Length overall34 ft 4 in overall incl. bowsprit and boomkin (about 31 ft on deck)
Beam11 ft 6 in
KeelFull keel, ~4 ft draft, encapsulated iron ballast ~4,500 lb, no keel bolts (shoal centerboard ~3 ft on ~10% of hulls)
RigMasthead cutter, keel-stepped mast, twin backstays, hanked staysail (no Hoyt jib boom)
EngineYanmar 3GM ~22 hp early, 3GM30F ~27 hp from ~1985
Used market~$30k to $55k, condition-driven

Known issues, covered honestly

  • The defining item: 304-stainless chainplates glassed into the hull corrode from the inside at the welds and cannot be inspected without cutting in, a rig-dropping risk and a $9k to $15k-plus replacement.
  • The encapsulated full keel has no bolts to worry about, but a hard grounding that breaches the shell lets water reach the iron ballast, which rusts, expands, and can take a whole season to dry out.
  • The foam-cored rudder is the one documented water-intrusion story on the boat, reading wet on a meter and weeping at the lower bearing or tip.
  • Original aluminum-framed ports and deck hardware seep with age, feeding stains, the deck core, and the chainplate pockets below until rebedded.

…and the full survey guide, service schedules, systems, and parts sourcing in the complete volume.

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We fold in your year, your engine, your electronics and refits, your hull number, and your vessel name and your own boat's photo on the cover. The book stops describing the boat that left the factory and starts describing the one in your slip.

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