In this method of measuring bowsprit including jibboom and out-board part of spanker boom if any have both no effect on the ship's length. The longest length for comparing ships, the total "overall" length (LOA) based on sparred length, should be given if known.
In this method of measuring a vessel's bowsprit, including jibboom and out-board spanker boom parts, neither component influences the ship's overall dimensions. To establish a standard measurement for comparison, the longest available dimension should be specified as the "overall" length (LOA), based on sparred length, if possible.