RE: [SCA-Archery] Long arrows
- Yep your right about the straightness of grain but what I have found is that
the way dowels are stored contributes to a lack of initial straightness. I
have found many dowels that were good but bent due to gravity and poor
storage. A little heat a little bend and voila you have a nice straight
shaft. Ok they need to be trained straight a few times to make up for the
abuse they suffered as mere dowels but good arrows they remain. This is why
I say straightness of grain should be a primary concern for selecting dowels
for arrows. Once you are happy with the grain then you can start to measure
for spine and weight etc. Selecting for straightness of the dowel first may
cost you many dowels that would work but for a little effort.
The reason I said a long bow might suffer from handshock is that a long bow
has long limbs and those long limbs have a lot of mass to swing forward when
released and if not tillered properly they will have too much mass in the
outer limbs and so handshock.
Now I have started making long flat bows that act like a longbow with a more
arc of the ellipse bend with short flatbow length working limbs and a long
static handle. This gives me speed, low string angle and the stability of a
longbow without the effect of long working limbs. When I made flat bows of
72 inches with a short handle I found the bow to be a lot more shocky and I
was not happy with the performance.
Now we all know a longer bow inherently stores more energy than a short bow
all things considered but you pay for it with decreased efficiency in power
Either I am not very good at tillering long bows or long working limbs are a
little more shocky and require heavy arrows to tame the bow and absorb all
that energy. I assumed the latter is more likely though my skill may be
wanting as well. ;) Your mileage may vary but that's what I have learned
From: SCA-Archery@yahoogroups.com [mailto:SCA-Archery@yahoogroups.com] On
Behalf Of Carl West
Sent: Monday, July 03, 2006 12:19 AM
Subject: Re: [SCA-Archery] Long arrows
Rj Bachner wrote:
> Yeah the dowel route takes time for sure, I would not worrry so much aboutIn _general_ if the dowel is straight in the hardware store, it likely
> straightness as nice straight clean grain.all the rest can be fixed.
has continuous grain. Or maybe more accurately, If a dowel isn't
straight in the store, the chances of it having continuous grain are
slim. Straightness a reasonable first test. _Then_ check the grain.
> As for the bow, 36 inches is very long for a draw, so the longer bow mustI'm curious, why would a longer bow necessarily result in handshock?
> have a lot of handshock.
If it's well tillered and the arrows are heavy enough for the bows
strength and speed, it could be really sweet and smooth.
>> I don't think footing is gonna be a good idea really, the added weight ofThe man is drawing _eight_ inches more than average, I expect the
>> those longer shafts will slow down the arrows as is the footing will be
additional powerstroke will make up for the added weight quite admirably.
The shafts could be footed with something light, it doesn't _have_ to be
a dense hardwood if you're footing for length instead of durability or
balance or style.
I've long believed that it more important that the arrows leave the bow
consistently than quickly.
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- At 3:29 PM 7/3/06 +0000, Godwin fitzGilbert de Strigoil wrote:
>However when shooting bows with varying degrees of archers paradoxWhich is why you usually give it your best shot, then tune the arrow to the
>(longbows, magyars-type, some flatbows- etc...) you must also consider
>the relationship of limb tip speed-to-physical weight (mass) of the
>arrow. Plus the fact that spine weight becomes much more critical.
>Then throw in FOC balance point, and also what you are *really*
>shooting as a spine weight for your arrow. I guarantee that what you
>spined your arrow at 'before' you started building it, is not what you
>are actually shooting. Doesn't mean that the spine weight
>'pre-assembly' is wrong.
>Of course don't forget the other thing that modifies the spine weight
>of the arrow: point weight. Heavier points virtually decrease the
>spine weight, lighter ones virtually increase.
>Handshock can come from different areas, the big two IMHO:
>1. Mismatch on arrow mass and limb tip speed.
>2. Bow limbs mismatched in final tiller.
bow by shooting them and observing the results. It certainly helps to have
an experienced archer stand behind and observe.