Main: 702 sq. feet, ~100% Jib: 450 sq. feet, Code Zero: 1284 sq. feet
Mainsail luff is 55 feet, mast "air draft" is 65 feet.
Base Speed: 13.6 knots

Modern sloop rig
Jib at each end, headstays also hold up rotating wing mast; very simple, no technical challenges, method already proven on Russel Brown proas.
(see roller furling example)
Catboat rig
No jibs, easier to shunt, rear rudder heavily loaded, use front rudder for steering?
"Bucky Boom"
Main and jib rotate together, 180 degrees on each tack. Lightweight modified wishbone rig composed of struts and wire stays.

A wide variety of rigs are possible and have been considered. Perhaps the best choice is the "modern sloop rig" because it is conventional, well proven, high performance, easily optimized with wing mast, furling headsails, light air screachers, etc. Also considered were catboat and schooner rigs (two masts).

It is irresistable for a proa to consider a balanced rotating rig where the jib rotates with the main boom, also known as a Balestron rig or AeroRig® (now defunct!). Commercial efforts at such rigs haven't been effective yet, mostly due to excess weight.

We came up with an ultra-lightweight version of our own called the "Bucky Boom", inspired by Buckminster Fuller, though it too has some problems to be overcome.

The Patented Garry Hoyt Offset Rig

Bucky Boom

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