This task became a bit of an obsession. First I made a set of 5 of 'boo of varying spines, but couldn't really test 'em much as the flight field grass was too long to find 'em
. It did give me a few sparse results.
These are to be shot under the auspices of the ILAA who don't allow 'boo
... 'Cos as we all know it was invented by DuPont in 1935
.
I struggled to find a wood which would give me enough spine at a small diameter.
I tried Cedar, Ash, Yew, Maple none of 'em anywhere good as boo.... then I remembered a long length of skirting board tucked away in the garage from when I'd made Mrs Cat
a shower room on the landing and modified a long wall.
It was fine grained and stiff, so I used that to make 3 shafts.... the guy I'm making them for then said he wanted four
I had two full length thin offcuts which I glued together to make the fourth, it actually produced a stiffer spine and a V straight shaft.
All this took a lot of messing about, making tools to rough out the shafts and turn 'em on my little lathe, and even fine grained pine can tear and splinter. Spines range from about 60# to 70# but it depends where on the shaft you measure as they are very barrelled.(so if you measure over 26" from the nock it is weaker than measured at the centre).
Note:- I think for 120# warbow, the spine can be down as low as 50# with no prob' for a flight arrow as it is V light, aslo Warbows don't have the same acceleration as flight bows as they are really more suited to lobbing heavy arrows.
The steel points were turned on my little lathe.
Flights are Greylag Goose and the nocks are reinforced and built up with waterbuffalo horn bound in linen thread and CA.
Finished weights are. 426, 456,463 and 509 gn I have deliberately allowed some variation, so we can see which suits the bow best. No point making four at 400gn if the bow shoots better at 500!
I haven't gone too light on the points in order to keep the balance point front of centre and keep some weight for the bow to work against.
we are at roughly 3.75 gpp
The arrows are numbered with burnt in dots, and the other burn marks are where I used a hot plate to shape the fletchings.See this post:-
http://bowyersdiary.blogspot.co.uk/2014/05/curved-profile-feather-shaper.html'Nuff chat here are some pics along side one of my regular field arrows (5/16" cedar shaft)
Del
PS. Just tested 'em from a lower weight but 32" draw bow (at about 31"). They went as far as a couple of the 'boo ones.
Really need tosee 'em from the 120#