Spine: Carbon Express

[dragonheart]

Does anyone know the spine weight of a Carbon Express 150?  I am looking for the spine in terms of arrow weight.  What is the spine on a tester?

[oldskool]

heritage 150 is .487
maxima is .495

[BobW]

Heritage SHAFT
Model Size/Qty Grs/Inch* Spine Diameter

W1410 90/12pk† 9.4 0.530" 0.291”
W1402 150/12pk 10 0.487" 0.300”
W1400 250/12pk 11 0.373" 0.305”
W1401 350/12pk 12 0.320" 0.309”

[dragonheart]

Thanks, what would that be in weight?  67#?

[BobW]

what length arrow? what type of bow? is it cut short, to, or past center?  what point weight is desired?

With those, you can get a good starting point.  Others will chime in once this is known.

[Cherokee Scout]

We have bareshaft tuned many bows. The CX Heritage will fly well in most bows that are between about 48-58 lbs depending on shaft length, point weight, string material, how the riser is cut, etc.
Every bow is different, my bow which has foam/carbon limbs, 44#, requires a CXH 250 using a 175 gr point, 30-30.5". But this is not normal, most bows of the mid 40# range require a 150 that is 30.5-31" long.

[dragonheart]

If you put it on a traditional spine tester, what would it be?  It was posted a .487 deflection, what is that in spine weight like a wood shaft?

Jeff

[Cupcake]

dragonheart,

The CE 150 equivalent wood spine is 64.7#.

For any aluminum or carbon shaft divide 31.5" by the deflection.  For the CE 150: 31.5/.487 = 64.7

[dragonheart]

thanks

[Shawn Leonard]

Cupcake, that is measured with a 14" centers is it not. Woodies are measured with 13" centers, maybe I am wrong but I thought done the traditinal way the 150s are more aound 70#s. Shawn

[Shawn Leonard]

I shoot a 29.5" Heritage 150 with 175 grains up front out of all my high performance recurves that are 51-54#s. Shawn

[Cupcake]

Shawn,
That is measured with the 13" centers of the woodies.  The formula I gave is good to convert any shaft to the woodie 13" centers from the 14" centers.  I worked out the conversion using beam deflection theory and verified my equations with measurements.
Kevin

[Hamish]

Im looking at trying some of these shafts out with my new recurve it's a 63#@28" i draw 29" so its going to be around 66#@29" min 30" arrow and i like 225 grains up front. Would the 350's be the go for this weight? Any advice would be much appreciated.

Hamish

[zilla]

I called Carbon Express and told em what my set up is.  I measured my  actual draw length, then pulled my bow on a scale and measured the pounds@ my draw..  I called CS and talked to a guy at support, giving him all the details and he e-mailed me what shaft and length to use.  It was spot on, as my 150's fly perfect out of my Morrison now.  All I had to adjust was the nock height.

[Eagle Eye]

It spines at about 65 lbs