Junior Folkboat Sailboat Review, Specs, and Listings

Eric Salander·1929
Junior Folkboat drawingBuilder drawing
Hull Type
Monohull · long
Rig
Fractional Sloop
LOA
18.7' · 5.7 m
Disp.
1,532 lbs · 695 kg
First year
1929

The Junior Folkboat is a small clinkerbuilt racing design with a lineage that reaches back before the betterknown Nordic Folkboat. At just 5.7 meters overall with a 4.5meter waterline, she carries 695 kg of displacement and 275 kg of ballast in an iron keel, giving a ballasttodisplacement ratio of roughly 39.6 percent. Eric Salander drew her, and the Royal Danish Yacht Club commissioned her as a junior racing boat ahead of the Nordic Folkboat's arrival; she later became the KDY 15 Sq.M. and picked up the "Folke" suffix only because she so strongly resembled her larger cousin. SailWiki also records the alternative name "Juniors Bad."

Measurements

Dimensions 01

Length Overall
18.7 ft
Length on deck
Waterline Length
14.76 ft
Beam
5.74 ft
Draft
2.95 ft
Maximum Headroom
Air Draft

Construction & hull 02

Construction
Wood
Hull Type
Monohull
Keel Type
Long
Rudder
1× Transom-Hung
Ballast
606 lbs (Iron)
Displacement
1,532 lbs
Water Capacity
Fuel Capacity

Rig & sails 03

Rigging Type
Fractional Sloop
Mainsail luff
Mainsail foot
Foretriangle height
Foretriangle base
Forestay Length (estimated)
Sail Area
161 sqft

Calculations 04

Sail Area to Displacement Ratio
19.38
Ballast to Displacement Ratio
39.56
Displacement to Length Ratio
212.69
Comfort Ratio
14.47
Capsize Screening Ratio
1.99
Hull Speed
5.15 kn

Design and Construction

Salander's hull is wood laid in clinker strakes over a long-keel form with a transom-hung rudder, a configuration that pairs old-school plank-on-frame aesthetics with the directional stability a full-length keel affords long keel with transom-hung rudder. The clinker hull and solid construction place her firmly in the wooden-boat tradition rather than the molded or cored approaches that came later. Her beam of 1.75 meters and draft of 0.9 meters keep her slender and shoal enough for easy trailer or shallow-harbor use, while the 302.88 pounds-per-inch immersion figure shows how little she sinks under added load for a boat of this size.

Rig and Sail Plan

The Junior Folkboat is rigged as a fractional sloop carrying 14.96 square meters of sail. That area against her 695 kg displacement produces a sail-area-to-displacement ratio of 19.43, and the resulting S# of 2.82 places her in the modest-performance band typical of a light-displacement racer of her era fractional sloop rig. With a displacement-length ratio of 212.56 on the 4.5-meter waterline, she is undeniably slender; her theoretical hull-speed maximum is 5.15 knots. The capsize screening value of 1.99 and comfort ratio of 14.46 describe a stiff, low-volume hull built for sailing upright rather than lounging.

Accommodations and Intended Use

This was never a cruiser with berths and galley; the KDY 15 Sq.M. designation reflects a one-design racing identity rather than family accommodation. The 1.75-meter beam and 5.7-meter length argue for a cockpit-focused day racer, and the 14.96-square-meter fractional rig is sized for a short crew. The "Juniors Bad" nickname and the later "Folke" addition underline that she was a trainer and club racer whose appeal lay in handling and pedigree, not interior volume.

History and Lineage

Production ran for a single 1929 season, a build run that makes every surviving example an early artifact. She preceded the Nordic Folkboat and was explicitly commissioned by the Royal Danish Yacht Club before that larger design existed; the resemblance was close enough that the "Folke" name was appended to signal the family link. As the KDY 15 Sq.M. she entered Danish one-design history, and the "Juniors Bad" alias preserves the club-racing origin.

The Verdict

The Junior Folkboat is a historically significant preamble to the Nordic Folkboat story: a clinker-planked, long-keeled fractional sloop built for junior racing under Royal Danish Yacht Club auspices in a single 1929 season. Her numbers describe a light, stiff, narrow day racer with a modest sail plan and a hull speed just over five knots. For a collector or classic-racing enthusiast she offers pedigree and scarcity; for anyone wanting cruising space she offers none.

Pros

  • Direct precursor to the Nordic Folkboat, commissioned by the Royal Danish Yacht Club
  • Clinker wood construction with long keel and transom-hung rudder
  • Stiff, light racing hull with 39.6 percent ballast ratio and 1.99 capsize screen

Cons

  • Single-season 1929 production limits availability
  • No cruising accommodations; designed as a junior racer
  • Small 14.96 m² fractional rig suits only light crews and day sailing

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