BoatsFahnrich 31

Fahnrich 31

Masthead Sloop · Full Keel With Attached Rudder · First built 1963

A Kurt W. Schroter-designed masthead sloop featuring a full keel and early GRP construction for stable coastal cruising

Designed by Kurt W. Schroter, built by Werner Muffler.

LOA
Beam
Draft (max)
Displacement
Hull type
Full Keel With Attached Rudder

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

Shoal draughtDraws 1.20 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LivelySea-kindly

Her moderate displacement on a narrow beam gives 23 — a moderate, middle-of-the-road motion.

Comfort ratio 23
CoastalBluewater

1.84 — just under the 2.0 offshore line; her beam is modest for her weight.

Capsize screening 1.84
LightHeavy

250 — moderately heavy for her waterline, a balanced cruising weight.

Displacement / length 250
EasygoingPowered-up

19.1 — plenty of sail for her weight; lively and quick to respond.

Sail area / displacement 19.1

Powered-up and quick to accelerate — this one likes to sail.

  • Lighter than ~78% of boats her size on file
  • Draws less than ~75% of boats her size on file

Compared with 423 boats of the same type within a quarter of her length.

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions
Weights
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
19.1
Displacement / length
249.6
Comfort ratio
23.3
Capsize screening
1.84
Hull speed
6.5 kn
Pounds / inch immersion
723
Hull
Hull type
Full keel with attached rudder
Construction
Fiberglass
Production
Years built
First built 1963
Designer
Kurt W. Schroter
Builder
Werner Muffler

Boats like this, on the water

Nobody has filmed this one — but these are close.

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

Pearson Yachts-USA Triton8.63 mSame hull family0.9 m shorterA Carl Alberg-designed long-keel fractional sloop that pioneered fibreglass cruising and saw international production.
Uma is Ready to Launch! (But there's a catch) | Step 489from Sailing Uma
Hallberg-Rassy Rasmus 3510.52 mSame hull family1.0 m longerA long-keeled cruiser that transitioned from mahogany to GRP construction, offering a stable platform for blue-water sailing
Full Sailboat Tour: Hallberg Rassy 35. Full time live-aboard boat ready to sail offshorefrom WhiteSpotPirates
Bayfield 30/329.75 mSame hull family0.2 m longerA rare 32C variant featuring a tall rig, built in a limited run of five hulls for increased sail area
Bayfield 32 Boat Tour - The Canadian Cruiser That Crossed the Atlanticfrom Practical Sailor
Alberg 309.22 mSame hull family0.3 m shorterA classic Carl Alberg long-keeled masthead sloop built for over two decades, offering a stable and comfortable motion
Solo Ocean Sailing: Expert Tactics & Survival Tips for Sailing Alone at Sea4:42from Practical Sailor
Cape Dory 30C9.21 mSame hull family0.3 m shorterA cutter-rigged cruiser with a full keel and a 1.27-metre draft, built for steady performance between 1976 and 1987
Designing a Versatile Fixed Keel Sailboat Trailer8:24from Atom Voyager
Pacific Seacraft Orion 279.42 mSame hull familyNear-identical lengthA heavy-displacement cutter by Henry Mohrschladt, built for offshore stability with a long keel and conservative rig
Small Boat, Big Keel Why This 27 Footer Works3:15from Practical Sailor

The family

Boats like this

Nearby designs by size, type, and era — worth a look alongside her.

Hinterhoeller Yachts F3The original 1981 Hinterhoeller production run that served as the foundation for the later Carroll Marine F36 seriesFrers 30A performance-oriented masthead sloop by German Frers featuring a high sail area-to-displacement ratio for spirited sailingFrers 33A German Frers-designed masthead sloop with a high sail area-to-displacement ratio built for competitive performanceFarr 7500A 1979 trailerable fractional sloop with a 1.8-metre draft, designed for agile handling in a light 1,150kg packageFaurby 363A 1998 Niels Peter Faurby design, this fractional sloop pairs a 1.8-meter draft with a 40% ballast ratio for stability

Keep looking

Nothing filmed of this one yet

Two ways to keep looking — both search what the fleet has actually recorded.

Search the fleet for boats like thisAsk the fleet about the Fahnrich 31

The newsletter

New boats, new stories. Every week, everywhere.

One email from the fleet — boats newly added, videos newly analysed. No noise.

Report an issue