Primitive Archer

Main Discussion Area => Arrows => Topic started by: zeNBowyer on October 24, 2009, 02:23:56 pm

Title: Flight characteristics of Bamboo Arrows
Post by: zeNBowyer on October 24, 2009, 02:23:56 pm
I  have  been  honeymooning  with  my  bamboo  arrows  all  this  week after  jumping  head long into  the  wonderful  craft of  bamboo arrows, shooting  every  chance  I  get  between crafting  arrows,

     Evaluating  what  kind  of  performance I can  get  from  boo,
sometimes  they  are  spot  on, always  hard  hitting,   always very  satisfying  to shoot,
and then  some  shots  are somewhat   erratic,

     I  compared  them  side  by  side   with my  carbons,  shooting  smooth,  fast,  and  accurate,
the  bamboo  on  the  other  hand , while  always  more  satisfying  and  at  times  exhilirating to  shoot,  are not  as  stable  in  flight,  and  there  seems  to  a  be some  real  variance in  shots, some  are  solid,  very  accurate with  some  erratic  and off,  though  the  groups  in  general are  pretty  fair, usually  low, an  expected result  of the  bamboo  being  much  heavier,

Wondering  how you  guys do  with  your  bamboo  arrows, is  this  this  a  general  characteristic  of  bamboo  arrows  in  general or are  you  guys  getting very  stable and  consistent  arrow  flight,

zeNBowyer


Here's  a  fascinating vid  of  a  korean musem  of  bamboo  arrows
http://www.youtube.com/watch?v=RK_Q96BKsdA
Title: Re: Flight characteristics of Bamboo Arrows
Post by: knightd on October 24, 2009, 02:55:29 pm
Sounds as your set of arrows are not matched all the same..
Title: Re: Flight characteristics of Bamboo Arrows
Post by: Pat B on October 24, 2009, 03:57:49 pm
With carbon arrows everything is the same, no matter how you orient them on the bow. With boo, and other natural shafting, there is one stiffer side. Generally speaking the sides with the nodes are the stiffer sides and one of them will be stiffer than the other. That stiffer side goes against the bow.
 On some arrows that you have chosen the stiff side, one or 2 will not shoot the same. Flip these "odd ball" arrows over(cock feather in) and they generally shoot fine. You have to find the "best" side of each arrow. I generally put a drop of glue, as an indicator, at the nock end like with indexed plastic nocks. I like to feel the correct position of the arrow while concentrating on the target instead of taking my eye off the target to position the arrow.
  Also, when working with natural materials like boo or hardwood shoot arrows, there are some that just won't fly right no matter what. These arrows I generally add a spiral wrapped flu flu and a nutter for the point and use them for squirrel or small game arrows. The flu flu will quickly adjust the arrow's flight and at the short distances I shoot these, they work just fine for this.
  You are not in Kansas anymore Dorothy! Welcome to the world of OZ(primitive archery)!  ;D
Title: Re: Flight characteristics of Bamboo Arrows
Post by: zeNBowyer on October 24, 2009, 08:17:51 pm
I  can  see there  is a  lot of  craft  in  sorting,  spining  and  selection of  good  bamboo  arrows, which  is  fine  by  me,
but  you  guys  seem  to  be  saying  that a  good  set  will  fly  straight  and  true with  a  good  set,
I wasn't  sure  if you  could  make  bamboo  consistently  accurate,  with  the profile  and natural  characteristics  of  bamboo,
thanks  appreciate  the comments:)
Title: Re: Flight characteristics of Bamboo Arrows
Post by: knightd on October 24, 2009, 08:22:54 pm
Yes you can make a very consistant set.. It just takes a bit more time than carbon..lol.. Pick out the ones that are flying true and match some to them.. weight,spine so on so forth,.. ;)
Title: Re: Flight characteristics of Bamboo Arrows
Post by: zeNBowyer on October 24, 2009, 08:58:36 pm
Thanx,
   Was  wondering if  there  was  anything  different  about spining  bamboo shafts,  since they  are  thick  toward the  nock  and thinner  toward the  tip
Title: Re: Flight characteristics of Bamboo Arrows
Post by: Pat B on October 24, 2009, 11:29:09 pm
The natural taper is good for 10# less spine so a 50# spined cane arrow will shoot like a 40# spined arrow. For each inch less than 28" you can reduce the spine by 5#.
Title: Re: Flight characteristics of Bamboo Arrows
Post by: knightd on October 25, 2009, 10:14:50 am
Pat is giving you great advice. You will also find that some times 65# spine shafts can be shot off bows from 45# to 70#..
Title: Re: Flight characteristics of Bamboo Arrows
Post by: Dano on October 25, 2009, 11:14:54 pm
"Was  wondering if  there  was  anything  different  about spining  bamboo shafts,  since they  are  thick  toward the  nock  and thinner  toward the  tip"

When I used to make em, I used the smaller diameter for the tip, giving you the natural taper you need.
Title: Re: Flight characteristics of Bamboo Arrows
Post by: Pat B on October 26, 2009, 12:01:02 am
That's backwards from how I make them. I put the point on the big end and the nock on the small end. weight forward.
Title: Re: Flight characteristics of Bamboo Arrows
Post by: zeNBowyer on October 26, 2009, 12:46:16 am
i  was  wondering  about  orientation  of  the tapered  end,  but  I  thought the  small  end  might  be  too  thin  for supporting  a  nock
Title: Re: Flight characteristics of Bamboo Arrows
Post by: zeNBowyer on October 26, 2009, 12:50:36 am
Pat  that  was  a right  on  tip,  i  had  one  erratic  arrow so  i  rotated  the arrow 180  degrees  and  it bamboo  shot  spot  on,
   so  it  looks  like  some orient taper  forward  and  some  orient  the  taper  backward
Title: Re: Flight characteristics of Bamboo Arrows
Post by: Pat B on October 26, 2009, 01:04:55 am
Rotate the shaft 180 not flip it 180!
Title: Re: Flight characteristics of Bamboo Arrows
Post by: zeNBowyer on October 26, 2009, 01:42:36 am
How  about  everyone  else-large end  of bamboo at the  tip,  or  nock?
Title: Re: Flight characteristics of Bamboo Arrows
Post by: CraigMBeckett on October 26, 2009, 08:33:18 am
Large end always at the point so that shaft tapers back to nock.

Craig.
Title: Re: Flight characteristics of Bamboo Arrows
Post by: Pappy on October 26, 2009, 09:37:14 am
I use the large end torward the tip. :)
   Pappy
Title: Re: Flight characteristics of Bamboo Arrows
Post by: flungonin on October 26, 2009, 02:08:36 pm
Natures way way of the first "arrow dynamic".
Title: Re: Flight characteristics of Bamboo Arrows
Post by: markinengland on October 26, 2009, 02:16:42 pm
Weight forward always helps arrow flight.

Thick end forward seems to be standard all round the world for bamboo arrows and shoot arrows in general.

Spine does seem somewhat less important in bamboo arrows than parallel POC due to the taper but go too far and spine still counts.

Mark in England
Title: Re: Flight characteristics of Bamboo Arrows
Post by: mullet on October 26, 2009, 10:00:40 pm
 Always small end at the nock. And if you wrap it with sinew and thread, there is no problem with the nock.

   Again, the voice of experience. I spent 4 nights in the hospital, 3 hours in surgery, and on anti-biotics for a month. A POC came apart on me on release and about 4"of the pieces went into my left index finger knuckle, where it blew up like a grenade when it hit bone. Thank goodness I had insurance, it was close to$500 grand before it was over with.  The arrow cracked in front of the fletching and I didn't know it. In comparison to Tonkin. I shot a range and missed and buried my arrow in a Live Oak. I cut it out and shot 3 more targets before somebody pulled my arrow and told me it was split in front of the fletching for 4". It was still shooting with know change.

 Bamboo will not come apart like that, even with nocks teensey- small, if you wrap them in front of the nocks.

 
Title: Re: Flight characteristics of Bamboo Arrows
Post by: NTD on October 26, 2009, 10:12:37 pm
OUCH!!!!

Add another reason that I'll be sticking with tonkin.

Nate Danforth
Title: Re: Flight characteristics of Bamboo Arrows
Post by: Dano on October 26, 2009, 10:25:08 pm
If you make the nock so that the node supports the string, there's no need to wrap the nock to reinforce it.
Title: Re: Flight characteristics of Bamboo Arrows
Post by: mullet on October 26, 2009, 10:37:39 pm
   That's what I do, Dano. But after that, I wrap it, too. ;)
Title: Re: Flight characteristics of Bamboo Arrows
Post by: Dano on October 26, 2009, 10:45:09 pm
Belt and suspenders ::)
Title: Re: Flight characteristics of Bamboo Arrows
Post by: Pat B on October 27, 2009, 12:24:55 am
I consider nock wrapping as part of my arrow making ritual no matter what shafting I use. 
Title: Re: Flight characteristics of Bamboo Arrows
Post by: Cromm on October 27, 2009, 08:38:02 am
Big to small when it comes to arrows.
Title: Re: Flight characteristics of Bamboo Arrows
Post by: zeNBowyer on October 27, 2009, 11:50:45 am
I  wasn't  sure about the  orientation  of the tapered end  of  bamboo  when  I  started,  neither  could  I  find that  information,  the  end  seemed  too  small  for  nocks,  but  again  I  am  constantly  suprised  at  the  strength and  qualities  of  bamboo,
    I  made  up  a  half  dozen with large  dia toward the  broadhead, used  hot  glue  for  broadheads (artificial  pitch  I  guess),
these  arrows  shot wonderfully,  and  as  accurate as  any  of  my  arrows,  certainly  much  more  beautiful  to  look  at:)



     
Title: Re: Flight characteristics of Bamboo Arrows
Post by: recurve shooter on October 30, 2009, 10:01:17 am
fat end is for point. works for weight FOC and the natural taper serves for less drag uppon entering an animal. think about it, the fat end punches the hole, and the rest of the arrow is pulled through a hole that is bigger than the shaft itself is.  ;D ;D ;D

man that sounded smart for someone who has yet to make a successfull arrow.  O:)
Title: Re: Flight characteristics of Bamboo Arrows
Post by: scattershot on October 30, 2009, 11:49:43 am
Large end at the point. Try to make your nock at a node, for strength, and wrap them with thread or sinew.
Title: Re: Flight characteristics of Bamboo Arrows
Post by: zeNBowyer on November 03, 2009, 11:02:44 pm
Decided  to  try  some  adapters for my  bamboo  target arrows, seeing  how  they  fascillitate  arrow  tuning, wasn't  sure  if  I  could  taper  a  bamboo  arrow and  use  a  conventional socket  type  adapter,  seeing  how  the  strength of  the  bamboo  is  on  the  outside  with a weak  core (if  any  core  at  all),  but  after reinforcing the  center  of the  shaft they  seem  quite  adequate,  we'll  see  how  they  fare on  the  target here  shortly


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Title: Re: Flight characteristics of Bamboo Arrows
Post by: zeNBowyer on November 04, 2009, 12:52:09 am
Shot  some  of these  into a  log, had  to  use  a  lot  of  force  to  pull  them  out-points  performed   well, nothing seperated or  broke, pretty hardy  stuff:)
Title: Re: Flight characteristics of Bamboo Arrows
Post by: faltenhemd on November 04, 2009, 08:21:59 am
I once had a nock splitting which was made just before a node

(http://www.bild-hoster.de/images/faltenhemd/bambusplit.jpg)