1&3/4 - or - 1&9/16

[King Custard]

Has anyone actually compared the difference in 1& 3/4 spinwings to 1 9/16 spinwings for target shooting at range?
What did you find?

My 'guess' is that the shorter one produces less drag....but less 'steering' too...so is there any benefit?

Why is it that when a dealer who stock's both sizes runs short of 1 &3/4's- he still has packets of 1 9/16's left over?
cheers!

[buzz lite beer]

funnily enough my shooting buddy, a capable MB standard archer , used three of his old arrows fletched with 1 9/16" and three of his new arrows fletched with 1 3/4" outdoors on Sunday morning and only out to 60yds but they grouped pretty much the same although we both noticed the smaller fletched arrows where more straight in the target than the larger fletched ones, probably due to the quite serve cross wind of averaging around 14mph

[WhitehartFB]

Originally Posted by buzz lite beer

funnily enough my shooting buddy, a capable MB standard archer , used three of his old arrows fletched with 1 9/16" and three of his new arrows fletched with 1 3/4" outdoors on Sunday morning and only out to 60yds but they grouped pretty much the same although we both noticed the smaller fletched arrows where more straight in the target than the larger fletched ones, probably due to the quite serve cross wind of averaging around 14mph

I to have never noticed any difference between the two, so I asked "Bob" at Spin Wing and he suggested due to my arrow length 29.5" and bow weight 43lb that I should use 1 3/4" and put them on straight. I would not lose anything in terms of drag and they would be more forgiving of a bad release.

So from that I concluded that the smaller vanes would suit shorter, smaller spined arrows and lower bow poundages. I've been meaning to ask, perhaps I should do it now

[Robin the Hood]

... When I first used them I used the larger ones, then decided to try the smaller expecting them to be too small to have an effect of instability . But I did find them to be very good and have stuck with them since, although only 60 yds there was no obvious difference in sights etc. My arrow length is 28". Maybe the larger ones may only be needed for the more chunky arrows.

Paul ....

[King Custard]

Well I now have a set of each to try out, and will add my findings as I get the opportunity...which might be soon considering the next few days weather forecast.
thanks for sharing- and especially Whitehart for the bit from the horse's mouth.

[Murray]

Smaller spinnies give me the best groups and sightmarks out to 90m, however, it's important you do the tests yourself.

[moo-mop]

I can tell no difference whatsoever. I can also tell no difference with normal ep vanes apart from the arrows are a very tiny bit lower.

So I just stick with my usual policy - what is proven to work for others far better than me (that's the 'more' normal 1 3/4 ones) isn't hampering me too much. Oh and because having a spinwing fall off makes less difference that if a normal ep one chooses to fall off.

[not dead yet]

Originally Posted by Murray

Smaller spinnies give me the best groups and sightmarks out to 90m, however, it's important you do the tests yourself.

same done this test with 24 arrows in 1996.

small spins on an angle 6 of
small spins on straight 6 of
large on an angle 6 of
large on straight 6 of

small on straight grouped better at all distances.

there was a differance in groups also small spins grouped slightly left . ( lefty)
so tuned them to the bow.

which was shoot the bare shafts through all distances 20 yds - 90 mtrs.

then fine tune for groups at long distance.

always found that the best groups were when the bare shaft was in the black at 12 o clock at 90 mtrs

hope this helps
pete

[King Custard]

very helpful - thanks for sharing that. There's only one area where info is atall lacking-
in that you have recorded the offset of the attached spinwings, but not how much of the 'face' of the wing is showing to the oncoming air (if you know what i mean)....You know yourself how easy it is to adjust the angle of the vane, just by pulling it back from the tape..
Hell it's harder to describe than I thought- i'll get back on this in a minute

[not dead yet]

the tape is so thin on these vanes, i do not reverse fit them, and the angle is 1/16 of an inch

bit more info.... 68" bow 28.75" to end of shaft, 43 lb on fingers. 520 shafts. at the time hoyt carbon plus. the original type, with 16 strand fast flight string.

hope this helps

pete