Design and Construction
The Phantom 30 came out of the early-1970s German yacht industry, when builders still used generously thick solid-fiberglass layups because the material’s long-term behavior wasn’t fully understood. Both hull and deck are fiberglass, and the early Genzel hulls were laid up in solid GRP rather than cored.
The boat measures 30.51 feet overall, with a 24.28-foot waterline and a beam of 9.32 feet. She is slimmer than 62 percent of comparable designs, with a length-to-beam ratio of 3.21. That gives her a narrow, purposeful hull rather than the fuller proportions of a cruiser designed to maximize interior volume.
Displacement is 7,716 pounds, including 3,086 pounds of lead ballast in the fin keel. That puts the ballast-displacement ratio just under 40 percent. The rudder is mounted on a partial skeg ahead of its trailing edge.
The underwater body has about 258 square feet of wetted surface. An immersion rate of roughly 978 pounds per inch means the boat settles predictably as weight is added, without dramatic changes in trim.
Rig and Handling
The masthead-sloop rig carries a reported 376.74 square feet of sail. Running-rigging dimensions are well documented: jib and genoa sheets are about 30 feet long and half an inch in diameter; the mainsheet is 75 feet of the same 12-millimeter line; and the spinnaker sheets are 66 feet long.
The fin keel and skeg-hung rudder give the boat the directional stability associated with a partial skeg, without the drag of a full keel. Draft is about 4.43 feet unloaded and can reach 4.73 feet under load. That is shallow enough for modest marinas while retaining the lateral grip of a fin keel when sailing to windward.
With a 24.28-foot waterline, the Phantom 30 has a reported hull speed of 6.6 knots—the familiar point at which wavemaking begins to dominate for a displacement hull of this length.
Accommodation
Below deck, the Phantom 30 has four berths and a galley. Headroom is 6.23 feet, which reviewers place near the average for the class.
Those accommodations fit within a hull only 9.32 feet wide, so the interior is useful rather than expansive. The same slim beam that helps define the boat’s sailing profile necessarily limits cabin width. The galley and berth arrangement suit a small crew on coastal passages, but this isn’t a voluminous liveaboard.
Age and Known Issues
The early solid-GRP hulls were built thick because of the period’s uncertainty about fiberglass construction. The rudder is supported by a partial skeg rather than being fully protected.
The sources identify no failure mode specific to the Phantom 30. Even so, every example is now decades old, so original deck hardware, engine mounts, and through-hulls will also be decades old where they remain aboard.
Refits and Ownership
Owning a Phantom 30 means maintaining a 1970s Streuer cruiser whose production ended in 1978 after a few hundred boats had been built. Its simple masthead rig and standard sheet diameters make running-rigging renewal straightforward. The solid-fiberglass hull also avoids the moisture paths found in the cored decks of some contemporary boats.
The modest 4.43-foot unloaded draft keeps a range of yard and marina options open. An immersion rate of about 978 pounds per inch also makes load planning intuitive for a cruising couple or small family.
The Verdict
The Phantom 30 is a thoughtfully proportioned early-1970s cruiser-racer: narrow for her length, solidly built in GRP, and simply rigged enough for an owner to maintain. Streuer’s combination of a fin keel and partial-skeg rudder balances agility with directional steadiness. The four-berth interior is practical, though not roomy.
She is a credible used-classic candidate for a sailor who values a well-documented, limited-production German design over a high-volume production boat.
Pros
- Slim 3.21 length-to-beam ratio; narrower than 62 percent of comparable sailboats
- Solid-fiberglass construction with thick early layups
- Fin keel and partial-skeg rudder provide tracking with relatively shallow-draft access
- Simple masthead rig using standard 12 mm sheet diameters throughout
Cons
- The 9.32-foot beam limits interior volume despite the four berths
- Production ended in 1978, so every hull is now decades old







