Milne Javelin Sailboat Review, Specs, and Listings

Peter Milne·1968·Porter Brothers
Approximate drawing

Hover a measurement to read its value

Hull Type
Monohull · centerboard
Rig
Fractional Sloop
LOA
17.58' · 5.36 m
Disp.
260 lbs · 118 kg
First year
1968

The Milne Javelin is a 17foot 7inch planing dinghy drawn by British naval architect Peter Milne. First released in 1968, it was designed as a fast, strong performance sailboat and has a Portsmouth Yardstick of 933. Fewer than 100 were built. The type has always been a small, twoperson racing dinghy rather than a cruiser, intended to be sailed hard on short courses.

Measurements

Dimensions 01

Length Overall
17.58 ft
Length on deck
—
Waterline Length
—
Beam
5.5 ft
Draft
4.26 ft
Maximum Headroom
—
Air Draft
—

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Centerboard
Rudder
1× —
Ballast
— (Lead)
Displacement
260 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
170 sqft

Calculations 04

Sail Area to Displacement Ratio
66.77
Ballast to Displacement Ratio
—
Displacement to Length Ratio
—
Comfort Ratio
—
Capsize Screening Ratio
3.45
Hull Speed
—

Design and Construction

Milne gave the Javelin a length of 5.36 meters and a beam of just 5.5 feet. Its length-to-beam ratio is 3.19, making it slimmer than 92% of comparable dinghies. That narrow, low-volume hull helped establish the class as a fast, strong performance boat rather than a roomy daysailer.

The solid-laminate fiberglass hull was originally built by the British yard Wright and later by other yards. At 118 kilograms (250 lbs), it is light enough to plane. An immersion rate of about 60 kg/cm (337 lbs/inch) indicates how little the boat sinks under crew weight, so it responds quickly when either crew member shifts position.

Rig, Sail Plan, and Foils

The Javelin has a fractional sloop rig, with 15.79 square meters of upwind sail area and a 17.50 square meter spinnaker for downwind legs. Those are generous areas for such a light hull.

With the centerboard lowered, the boat draws 1.3 meters. The board supplies lift and contributes to the righting moment needed for the tall fractional rig, then retracts for trailing and shallow water. The specified crew is two, and the immersion figure helps explain how strongly their movement affects the waterline and trim.

Accommodations

There are no accommodations. This is a 17-foot 7-inch racing dinghy for two, with no provision for sleeping or cooking and no stowage beyond what a daysailor carries on the centerline. Its purpose is speed and handling, not living aboard.

Handling and Maintenance

The Javelin’s main constraints are inherent in its design. Its slender hull, with a 3.19 length-to-beam ratio, and its 337 lbs/inch immersion rate make stability dependent on the crew. Poor weight placement is quickly felt.

The centerboard trunk and retracting foil are the only moving parts below the waterline, and maintaining them is the owner’s principal mechanical task.

Refits and Ownership

With fewer than 100 boats built around a design introduced in 1968, most surviving Javelins are now veteran racers. Ownership is more likely to involve rig tuning, spinnaker care, and centerboard-pivot servicing than a refit of onboard systems.

The simple fiberglass hull and fractional rig help keep ongoing costs low. However, the small class size means spars, sails, and boards are often custom-made or sourced second-hand rather than bought as catalog items.

The Verdict

The Milne Javelin is a pure racing dinghy: narrow, light, and quick. Its documented Yardstick places it among the faster classic planing dinghies of its size. Scarcity and sensitivity to crew weight make it a specialist’s boat rather than a family daysailer.

Pros

  • Fast, strong performance sailboat with a 933 Portsmouth Yardstick
  • Slender hull—slimmer than 92% of comparable dinghies
  • Light 118 kg fiberglass hull with a retracting centerboard
  • Generous fractional rig and spinnaker for its length

Cons

  • Crew weight critically affects trim, with 337 lbs/inch immersion
  • Fewer than 100 built, limiting the class and spare-parts pool
  • No accommodations of any kind

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