Elementarry, a 7.5 m x 4 m, trailerable sport harryproa that has telescoping beams and the option of an interchangeable windward hull giving you a versatile boat that can be used for racing, fast day sailing and camping.

Specifications:

Leeward hull length: 7.5 m / 25′
Windward hull length: 3 m / 10′
Beam: 4 m / 12’4″
Empty weight: 120-150 kgs / 264-330 lbs
Payload approx: 160 kgs / 352 lbs
Sail area:21sq m / 225 sq ft
Draft: Rudders Up .1m m / 4″
Draft: Rudders Down 1 m / 3’ 4″
Righting Moment: 640 kgm/433 ft lbs
Berths: 1-2 singles in the camping version
We get a lot of requests for smaller proa designs. Mostly, people want one of three things;

  • A really fast boat to beat the local beach cats
  • A comfortable camper/day sailer
  • Something people can test the proa concept on before deciding on a larger version.

So, what have we come up with? Elementarry, a 7.5 m x 4 m, trailerable sport harryproa that has telescoping beams and the option of an interchangeable windward hull giving you a versatile boat that can be used for racing, fast day sailing and camping.

Both Elementarry and the Elementarry camper are schooner rigged for ease of rigging. Sail area (21 sq m), righting moment and weight (160 kgs) of the camper is the same as a Tornado but more manageable, and with a much lower centre of effort and longer sailing waterline.

The sport option has a sit on ww hull, the camper has a pop top and a bunk inside. The first camper was built (and personalised) by Doug Haines, who successfully cruised it up and down the inhospitable Western Australia coast. It is now in Thailand. Approximate Building Time: Varies according to whether the windward hull is the camping version or not. And on whether the hulls are strip planked, flat panel or mould infused. Either of the infused methods would take 150-200 hours, plus rig. The strip plank option about double this. Materials costs on application.

The first Elementarry built has become the harryproa test bed. It has had many mast, rig, rudder and beam arrangements to test various options. These are detailed in the Evolution of Elementarry.