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    IRC Optimisation at a Glance.

    David Armitage, Head Sail Designer for Quantum Sail Design Group discusses several opportunities for optimising your sail plan.

    • Additional downwind sail area provides a good trade-off between rating and performance.

    • Square-top mainsails are the rage, and with good reason. However, be careful of too large a girth. Modest proportions seem better.

    • The luff perpendicular (aka LP, measured from the luff to the clew) seems to be penalized disproportionately. When determining the size of your largest headsail, consider where you’ll be sailing.

    • Reducing the headsail luff length can have a significant positive impact on rating. Losing the very top of a skinny triangle may not be much of a loss in terms of boatspeed, particularly on boats with non-overlapping headsails.

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    freelance writer

    July 19, 2011 | Unregistered CommenterMARGOKemp

    freelance writer

    July 19, 2011 | Unregistered CommenterMorinMelody25

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