Kasan and reflex
I made this 46 inch bow some weeks ago and I break a kasan twice. I did shot it and made a fd-curve before it break. I got 219 fps with 380 grains (5.5 grains/lb), an efficiency about 70%.
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Upper bow is first brace, you can see the weak kasan. Lower bow today with new horn under kasan and more sinew at kasan eye and kasan.
I made new fd-curve and got 0.2 lower energy and 2-3 lb lower weight.
This is the graphs.
[external image]
With the thicker kasan I lost some efficiency and speed. Still its a ok target bow but if I had the higher efficiency it had been really nice bow.
It has not more then 1.5 inch reflex at kasan eye but have this humph at the fd-curve. I have for some time had my doubt about the high reflex in bows, does it do so much?
[external image]
![[external image]](http://images.yuku.com/image/jpeg/5883691e12fb05503eef456768b0241b31477214.JPG){kind=link}
Upper bow is first brace, you can see the weak kasan. Lower bow today with new horn under kasan and more sinew at kasan eye and kasan.
I made new fd-curve and got 0.2 lower energy and 2-3 lb lower weight.
This is the graphs.
[external image]
![[external image]](http://images.yuku.com/image/jpeg/4e326b618502834e4eb6d22ea9890f9791e83121.jpg){kind=link}
With the thicker kasan I lost some efficiency and speed. Still its a ok target bow but if I had the higher efficiency it had been really nice bow.
It has not more then 1.5 inch reflex at kasan eye but have this humph at the fd-curve. I have for some time had my doubt about the high reflex in bows, does it do so much?