BoatsRon Moore Jester

Ron Moore Jester

Cat (unstayed) · Dbrd. Dinghy · First built 1970

A George Olson and Ron Moore designed one-design dinghy featuring a high-performance unstayed cat rig

Designed by George Olson & Ron Moore.

LOA
Beam
Draft (max)
Displacement
Hull type
Dbrd. Dinghy

See her sail

The Ron Moore Jester, on the water

The fleet's own footage — the truest look at how she really moves.

Footage from Sven Yrvind

Is it for you?

Character

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

TrailerableBeam 1.19 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 41 kg of hull, so roughly 650 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 41 kg of hull, with a keel that raises or a draught shallow enough to float off a trailer — she can go back on the trailer at the ramp, not only into the water.Shoal draughtDraws 0.15 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
CoastalBluewater

At 3.50 she sits above the 2.0 line — beamy for her weight, and happiest coastal.

Capsize screening 3.50
EasygoingPowered-up

47.8 — a lot of sail for her weight; powered-up and eager, a real performer.

Sail area / displacement 47.8

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

  • Draws less than ~90% of boats her size on file
  • Narrower than ~87% of boats her size on file

Compared with 40 boats of the same type within a quarter of her length.

What the fleet has seen

The Ron Moore Jester, as the fleet has seen it

Derived from the videos the fleet has analysed of this model. ▶ marks open the moment aboard.

The Ron Moore Jester is a 2.4-meter single-handed one-design dinghy designed by George Olson and Ron Moore, built by Ron Moore and Moore Sailboats since 1970. It features an unstayed cat rig, a daggerboard dinghy hull, a 1.2-meter beam, and a 0.5-meter draft, displacing 40 kg. The boat is primarily seen in Northern California, USA. Mikael Ritchie, connected to the Royal Institute of Navigation, sailed a Ron Moore Jester.4:44

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Basemap © Wikimedia Commons · CC BY-SA 4.0

The record

Full specifications

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

Dimensions
Weights
Rig & sail area
Rig
Cat (unstayed)
Ratios
SA / displacement
47.8
Capsize screening
3.50
Hull
Hull type
Dbrd. Dinghy
Construction
Fiberglass
Production
Years built
First built 1970
Units built
295
Designer
George Olson, Ron Moore
Builder
Ron Moore, Moore Sailboats

Boats like this, on the water

More boats like her, on the water

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.

RS Tera2.87 mSame hull family0.4 m longerA Paul Handley-designed cat-rigged dinghy featuring a lightweight 39kg hull and high power-to-weight ratio for youth racing
Optimist Dinghy (INT)2.34 mSame hull familyNear-identical lengthA Clark Mills-designed pram dinghy from 1947 that serves as the world's most popular youth trainer
Fairey Marine Ltd. Duckling2.74 mSame hull family0.3 m longerA 2.74-metre cat-rigged dinghy imported to the US by George O'Day during the mid-1950s

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The fleet has more to say

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