Spinning broadhead penetration question

[Phil]

As most of you will know, we don't have hunting with bows here in the U.K. ( :mad: ) but I do like reading the bow hunting posts on T.T.
One aspect of bow hunting that's allways fascinated me, is, if there is a difference in penetration of a spinning broadhead as opposed to a non spinning broadhead.
Let me explain.........
I guess we all accept that an arrow rotating down the long axis has it's advantages... (getting the arrow to straighten up quicker... etc) . With a spinning arrow you also have a spinning b'head. So when the arrow hits the target, the head is acting almost like a drill bit coming into contact with a larger amount of animal tissue.
Now... if you have a non spinning b'head the arrow hitting the target is more like a knife stab with a reduced ammount of tissue contact but with the same force,so one would assume better penetration.
So my question is .. is it an advantage to have a shaft and a head spinning in a hunting shot?
or maybe.. (and this is coming from someone with absolutly no hunting experience ).. if having a non-spinning b'head is an advantage but a spinning shaft is an advantage .... have a swivelling b'head so the shaft can spin and the head remains still.

Now remember guy's..... if you reply to this, speak to me as if I'm 5 years old that way I'll be able to understand the answers

Good Hunting :cheers:

[Boho]

talk to you like your 5? well I'll try but I'm not really good at that.
well wittle boy, if d awwow is spinning, it will fwy sywaiter when it has a bwoadhead on it. it has to steer the blades for a good true arrow fwight. that's my opinion. how'd I do? :)

[James on laptop]

boho are you 4 or 5? :lol:

I can tell the difference shooting targets with big bannana feathers fletched with a lot of twist on them and smaller feathers with less twist.I don't know if it is the fact the big feathers are slowing the arrow down faster or because it is spinning the broadhead more but the one with smaller feathers seems to penitrate more.It is more noticeably with large 2 blades heads than smaller 3 blades like the woodsman, jmo I use smaller feathers and less helical on my hunting arrows than I used to because I think it matters. :)

[Pinelander]

I would suppose that regardless of how fast the arrow is spinning during flight... it stops spinning when solid contact is acheived. How that affects the end result penetration is difficult to know unless "slow-motion/x-ray vision" videos were available. I would think that the diameter of shaft and the straightness of arrow flight would be bigger factors in penetration than how much the arrow is spinning upon contact. A very interesting subject nonetheless.

[Boho]

I just turned 18. :shooting:

[Phil]

Boho :lol:

[swampy]

I dought it makes all that much differance. They do make a BH that spins independent of the shaft it,s called the razor back .I used the old style to take my first few deer with, a couple with the 5 blade and a couple with the 4 blade.Now their a cut on contact 4 blade instead of a chisle point. I also don,t think that a spinning BH stops completely on contact but rather turns a little as it goes thru....some BH manufactures offset the blades so that they will turn with the shaft but I think thats more of a marketing thing then functional.

[tuffshot]

Phil,

It is not the idea of having a spinning broadhead, rather letting the shaft spin inside the ferral to allow less wind resistance from the broadhead itself. The larger the broadhead the more tendency there is to plane. The wider the blade the more it tends to plane while it is spinning, thats why most blades are slotted today.

The Razorback 4 and 5 blade models that Swampy mentioned have killed many a deer in Southern Ohio, as they were very popular years ago.