arrow speed

[Spitz2]

Hi Laurent
you keep your old set of limbs ?

Spitz

[heartlandbowyer]

Originally posted by hybridbow hunter:
And believe me, after playing like this with a lot of bows from famous bowyers names,  getting that way ( hand shot, cold shot, accurate shot, bow in hunting setting) 189 fps out of a 67-68# bow with a 800 gr arrow is A LOT of bow performance

Gotta love a 31+" draw lots of stored energy there. I need an arm stretcher.

[hybridbow hunter]

Hello Luc
Yes I keep them all. The 61# set will be my back up set.
Cory, yes my long draw give me 10-12 fps increase in speed for same gpp arrow. 830 gr is 12.4 gpp for my bow and it flies @ 186 fps. All my other bows shot at that ratio in same conditions are in the low to mid 170's fps for the fastest glass recurve or hybrid LB I own and in the low 160 fps for the medium R/D longbows.

Kirk said which is faster a car or a pickup truck.  That all depends what it is pulling some would add.  Some pickups have a governor in them.  We have done some nonscientific comparisons to see how much arrow weight affected different bows in grains per pounds.   A thick cored longbow does not slow down or speed up as much with arrow weight changes as a narrow tipped recurve that we had.  However, the narrow tipped recurve was the fastest bow of the group.  The span was not all that wide.  Our longbows are on the quick side for Hill style and mild R/D bows and I think some of the recurves may have been on the slower side.  Oh, the fast bow, a Grooves Spitfire.

[Sixby]

Take two Identical bows of Identical weight and length and same strings and everything exactly the same except one is of a better design and is more efficient.

In controlled testing using a Hooter shooter or equivilant with mechanical release and same arrow. Test them at exactly the same draw length.

The more efficient bow will have more speed with that given arrow.

Now up the weight of the arrow and as the bows approach their maximum efficiency because of the added arrow weight the speeds differential will be closer.

This leads some that believe that a slow bow will cast a heavier arrow faster. In fact it is using more of the stored energy.

 The slower bow may actually come close to shooting the heavy arrow as fast as the more efficient bow it will never shoot that arrow as fast or faster than the more efficient bow.

This is not a theory. It is a fact proven over and over under scientific testing.

God bless, Steve

We found the same thing. If a bow is faster at 9 grain per pound, it will still be faster at 11 grains per pound.  The only thing we saw of any importance was that some bows show less variations in arrow speeds with heavier and lighter arrows, and some faster bows that shoot moderate weight arrows very fast show more difference from throwing a heavy arrow in the mix.  That could be important to those with very fast bows, to make sure all of the arrows are identical, and at the same time let slower shooting longbow shooters know that they can have a lighter weight small game arrow in the quiver and maybe get by with an accurate shot at a rabbit or two during deer season.   A fast bow that could shoot heavier arrows and lighter arrows in a closer span at a 28" or less draw like a Hill style bow, that would be interesting and very tempting.

[damascusdave]

The fastest bow that I own is a static tip

DDave