Longbow: I bought a new longbow about three months ago and recently I find that I am getting string-slap whenever I release my arrows? 
A: These are a number of possibilities about this but assuming your technique has not changed, then check the tiller on your bow. If you’re tillered too close to the bow then the string will travel too far forward when you loose the arrow and it’ll slap your arm or more usually your wrist. A rough guide is that your bow should be tillered at 1/12th of the length of the bow when de-strung. So if your bow is 72 inches then the tiller is 6″ (6 inches). It is possible that your string has stretched or that you’ve dropped it and it has unwound. 
The brace height is the distance from the deepest part of the grip to the string and  You want to twist the string to shorten it until you the tiller recommended by the bowyer or if you don’t have it then 1/12th of the bow’s length).  This will allow the bow to perform as designed and certainly will prevent the string from hitting your draw wrist on the loose. Run your hand down the string to ensure the twists are evenly distributed. 
Also check you nock position after this. (If your string has stretched you may need to change it, but if it is simply a case of you’ve dropped the string and let it unravel then your nock position should be fine. 
If your longbow is hitting your wrist, and you’re getting wrist-slap, then it is a pretty good indication that your tiller is not right.   Longbows generally are never braced lower than six inches and recurves rarely less than seven. Many modern longbows like to be braced at or around seven inches and recurves, depending on design, between seven and nine inches. Brace height is determined from the deepest portion of the grip

If it is not tiller that is a problem, then it may be the way you are holding the bow. You may be over-rotating your hand inwards, putting your wrist in harms way. 

Longbow Insurance The longbow has a lower velocity than other bows; no claims have been made over the past 50 years. As a result of its remarkable antecedents the longbow has the widest range of shooting traditions. The mainstream archery associations for the longbow in the United Kingdom are as follows: G.N.A.S. The Grand National Archery Society or Archery UK; insures all members and affiliated clubs for one and two-way target and clout shooting. This is its main remit, but it is a considerable one. It takes all bows-types through all levels of competition to International events and the Olympics. With the growth of field archery it has established a sister organisation in that domain. The G.N.A.S. has a comprehensive set of rules. Its works closely with F.I.T.A. (Federation Internationale de Tir a l’Arc) representing all UK archery. It is however not longbow specific and does not cover all longbow aiming and ranging traditions. N.F.A.S. The National Field Archery Society; insures all members at shoots that have been entered in its calendar. Deliberately UK domestic the N.F.A.S. has no International remit nor insurance remit. Nevertheless, its particular type of archery is at one and the same time popular as well as potentially higher risk. The N.F.A.S. no longer insures shooting at the (roving) Marks, but limits its insurance strictly to field-archery. Again, it is not longbow specific and does not cover all longbow aiming and ranging traditions. I.L.A.A. The International Longbow Archers Association; insures specifically longbow – all weights, sections AND all the longbow aiming and ranging traditions. The I.L.A.A. seeks to lower the threshold of entry into safe insured longbow archery. It is the globally the only organisation to have an engineering definition of the longbow which underlines its approach to safety and inclusivity. The I.L.A.A. has an International remit with shoots both in the UK and abroad. click on Membership B.L.B.S. The British Longbow Society; insures specifically light-weight “D” section longbows and covers only the traditions of two-way target and clout shooting, provided these are for medals and entered in its calendar published yearly. The organisation is essentially UK domestic. E.F.A.A. The English Field Archery Association; insures all members at shoots entered in its calendar. Its International remit for postal competitions runs via the I.F.A.A.. Its particular type of archery is popular as well as potentially higher risk. However the E.F.A.A. has a well drafted Constitution and good approach to safety. The E.F.A.A. limits its insurance strictly to field-archery. It is not longbow specific and does not cover all longbow aiming and ranging traditions. S.P.T.A. The Society for the Preservation of Traditional Archery; insures traditional hand-made bows of all kinds in a variety of traditions including horse-archery. The Society is small but does have an International remit. It is managed by a small number of very knowledgeable and dedicated bowyers and archers. It is not longbow specific and does not cover all longbow aiming and ranging traditions.


Richard Head Longbows
Hector Cole Iron Work
British Longbow Society
The Worshipful Company of Bowyers
The Worshipful Company of Fletchers
National Field Archery Society
Society for the Promotion of Traditional Archery
English War Bow Society
Primitive Archer Magazine
Long Bow Emporium