question about massive end of the limbs

[inksoup]

hi friends...

i have question about the massive ends of the limbs.

1. what is it for? what is the purpose of it?
2. my guess is: moving the bending point towards to center... if so is there need to make taper on the limbs?
3. can you please give some commands about pros and cons?

best.

[monterey]

What type of bow are you referring to?

Pictures would help.

[Mad Max]

Pictures will help !

[Robertfishes]

I think he is asking about "tip wedges" . Inksoup you should find some information thru the search function, type in tip wedge. you can also search for powerlam

[inksoup]

hmmm i think it was my mistake.. i had to express myself more clear...

it is not tip wedge or power lam.
i am talking about "siyah" like static ending point. usually they are used in static recurves, self long bows, mollagebeth bows,
like this. if you look at the both tips end there are massive and static ends.

like this.
https://drive.google.com/file/d/0B3SExYVktZOmaWNLZ1hZT3ByZkU/view?usp=sharing

[monterey]

I can't answer all of your questions, but the purpose is to make that portion of the limb stiff and non-bending.  So, in that sense, it is a static tip.

I'm not sure why they are so massive in the Asiatic bow.  They do not have to be massive in a modern glass lam bow or in an all wood Holmegard type bow.

[Mad Max]

"usually they are used in static recurves, self long bows, mollagebeth bows, "

They are thick Belly to back, but narrow side to side
They are lighter and stronger

[KenH]

Siyahs and static recurves are designed to give the bow extra power in a shorter overall length; even more power than a 'working' recurve, because each siyah/static tip acts as a sort of atlatl to boost the power at the the release.  

As mentioned, siyahs on Asiatic composite bows are thin side-to-side, but thick from back-to-belly because they are designed to work with the powerful wood/horn/sinew composite bow (80-140# draw).  The thin all around, but rigid lever tips of the Mollegabet/Holmegaard selfbows are not intended for nearly that much power.  IIRC the archeological originals are estimated to only be in the 30-60# draw range.

[Mad Max]

Nice Info. KenH