foretriangle 
noun
1The triangular space between the deck, foremast, and forestay of a sailing vessel.Boats had low aspect mains, small foretriangles, fractional rigs and no lapping foresails....
- In addition, the dip pole gybe requires another crewmember to adjust the topping lift while the pole is being swung through the foretriangle to the other side of the vessel.
- If the two boats have similar sized foretriangles you can probably make it work.
1.1The area of sail within the foretriangle.One nice thing about the high foretriangle is that gybing under spinnaker in heavy air does not demand flawless runner work to keep the mast in the boat....
- However, in addition to the mainsail, some manufacturers use the working jib or even a 150% genoa instead of the foretriangle to calculate the total sail area.
- Bottom line is I think at least some IOR boats are under-rated; they can sail very well, especially in lighter air where the pinched ends reduce wetted surface and the big foretriangles provide power.
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