A hafel sail is a sail in the form of an irregular trapezoid, which is stretched by the upper and lower luffs along spars. Takes the name of the mast it is on.
If a gaff sail is used on a single-masted vessel, it is called a gaff main, or main gaff. Such a sail is attached with the luff to the boom, the luff to the gaff, and the luff to the mast.
If a gaff sail is used on a single-masted vessel, it is called a gaff main, or main gaff. Such a sail is attached with the luff to the boom, the luff to the gaff, and the luff to the mast.
Gaffel is a slanted spar tree; at one end it is attached to the mast in such a way that it makes an acute angle with the mast segment located above the attachment point.