I´m a happy man with that speed and a very satisfied bowyer too. It took me almost 20 years for to make wooden bows performing as fast as hightech- bows- that´s great!!!
Don´t ask me now, why these bow- designs are coming out such fast. It´s some try and errors, I´ll need some time for to realize it. I´m that type of guy following something and not really knowing why.
Above all I was heavily inspired by Marc St. Louis recently posted short elm flightbow, have a look at PALEOPLANET
I just want to do it. I thought about it and come up with some variations. Just have read something about the Golden Angle as a very a well known construction principle in former times(A- frame houses) and in nature(flowers, crystals……). So I gave it a try. Instead of joining the limbs with a tapered finger joint, I attached the well prepared limbs(shaping, steam- bending the angle, heat- treating) to the handle and fixed it with dove tailed wedges, the rowan flight 137.5 is done this way. Don´t be confused about some leftovers of the wedges of a former trial. My first trial went wrong cause I bent the limbs backwards to much while heat treating them. So I cut the limbs of and could use the handle again. The handle is made of mountain- maple, the wedges are made of field- maple as well as the v-spliced in siyahs.
The limbs of the osage flight are v- spliced into the handle which is made of flowery ash and reenforced by small logs of blackthorn at the belly, shaped so for to keep the string as near as possible to the limbs and to allow a comfortable and secure grip.
Length of the osage flight 137.5 is 46″, width is 11/8″ at the handle tapering to about 1/2″ at the tips. The rowan flight 137.5 is measuring 50″ in length, width is tapering from 11/4″ at the handle to 1/4″ at the tips.
Sorry, but I´m still suffering from a badly influenza, so I felt not strong and tough enough for to make the chronos at full draw. At full draw speed will be 200plus f/s.
The design is combining ancient designs like the Angular bows of the Egyptians, the Scythian bows, a lot of the insights of Marc St. Louis, Tim Baker, Steve Gardner, Alan Case, the ATARNET- and PALEOPLANET- members, Adam Karpovicz´ ideas and work on “low stack bow- designs”. Last but not least it is a result of the www and the networks, so this is a kind of global bow.
Next volume is updating the chronos and tells the making of the flights 137.5