Smoothness of Draw...

[Shredd]

  Here we have two sets of dfc numbers...  One is a recurve and one is a long bow...  Can you tell me which is the recurve and which is the long bow and why the recurve feels like it draws so much smoother???  Alan, you have to stay out of this for now...

[attachment=1]
[attachment=2]

[Mad Max]

Recurve is top one

[OldRawhide42]

What is each column used for

[Shredd]

  White - inches...   Yellow - lbs. drawn at that inch...  Blue - weight gain from last inch...

  White - some kind of average (don't know)   Dark Green - weight gain or loss per inch...

Light Green - the percentage of the weight in blue column compared to the weight at 28" draw...

   Don the answer of smoothness is in the numbers...   I want someone to explain the reason for smoothness of the one bow compared to the other through the numbers...  The numbers paint a picture of the draw...  It may be easier to compare if you copy the images and put them next to each other and use a straight edge to compare numbers...  Roy, can you blow up these images a hair and put them next to each other evenly??

Mark...  Correct... Top one is the recurve...  How did you know??  Can you explain to the class how you know this??   

   

[Shredd]

  If you look at the dark green numbers from 20" to 28" the numbers are very close (within a hundredth of a pound or two) and those are the numbers that represent stacking...   So how can this be??  Both bows are stacking at the same rate but one feels much smoother than the other... You said the averages are increasing at a slower rate..  Yes, at a slightly slower rate which can have some effect on feel of the draw but there is more...  Something that makes a bigger difference...

[Roy from Pa]

Trying Rich but not working out.

[Mad Max]

Top--(Left now) is the recurve---------------Bottom--(right now) Long bow/R/D
Left one is gaining more # per inch until 18", 19/20" string should be lifting off the belly of the recurve making the bow/string longer ( kind of letoff in a way) 1.53--1.53

Dam I had them side by side in the preview and then they changed. OK shrink your screen a little and they will be side by side

[Roy from Pa]

 

[OldRawhide42]

Do you remember where you got this dfc spreadsheet ?   I think I like it better than the one I have .

[Shredd]

I customized it with the last two columns... Got the basic sheet from somewhere else...  Message me if you want it...  That dark green column will tell you how accurate your dfc is...  Those numbers should all be in sequence, anything out of order is a sign that something is not accurate...  In these dfc's I am good to about .05 lb.... I talked earlier in the week about percentages...  That is the light green column...  A decently fast bow will have above 10% in the beginning and around or below 5% at 28"...

Awesome...  Thanks Maxie...

[williwaw]

A decently fast bow will have above 10% in the beginning and around or below 5% at 28"...

Are you looking for smoothness with your rocket launches or for your target bow?

[Shredd]

The smoothness thing just kinda dropped in my lap... It was something that I just did not get around to researching... But when I was shooting my recurve and my longbow last week I noticed how much smoother or easier the draw was at the last half... That's what got me curious and looking at the numbers... I am amazed at what I found...  I understand it but I am still trying to wrap my head around it...

Hey class... There is very little participation here...  Don gets a 'C' and Max gets a 'D'...   This is some ground breaking, cutting edge chit here that nobody knows, or they are keeping it a secret because I never heard it mentioned... So now that I did all the work for you, You are gonna have to do the rest if you wanna know the answer... 

[Mad Max]

Why did I get a D
I answered you question

Top--(Left now) is the recurve---------------Bottom--(right now) Long bow/R/D
Left one is gaining more # per inch until 18", 19/20" string should be lifting off the belly of the recurve making the bow/string longer ( kind of letoff in a way) 1.53--1.53


Draws smoother because string angle.

[Shredd]

  That's somewhat true but not the answer I am looking for...  The answer is strictly numbers...  Forget everything about how the bow is bending... All you have is numbers to work with...

You got a 'A' for the answer and a 'D' for the course so far...    Everyone else is sporting an 'F'...   

[B-JS]

*chews a piece of paper*
*raises a straw*
*deeply inhales*
Cough Cough Cough

[OldRawhide42]

I must have a F . I am still trying to pick a longbow or a recurve .

[williwaw]

If you just want to compare numbers, then keeping track of the bow lengths will be important. It changes the above mentioned string angles.

But when I was shooting my recurve and my longbow last week I noticed how much smoother or easier the draw was at the last half...

I presume your recent interest is target oriented? my preference is a bow over 66" when shooting for accuracy.

[Mad Max]

It was under 2# per inch most of the draw

[Longcruise]

I'm not a numbers guy.  Perfectly reflected in my HS algebra grades. 

For us visual folks

[attachment=1]

[attachment=2]

[Shredd]

Thanks for posting the curves Cruiser...  I take that you didn't need to fix them to look smooth??

  Ok Max...  I got to give it to you if you mean the last half of the draw cycle was a decent amount lower on the RC than the LB in the blue column and also in the percentages which reflects the blue column...  Yet the stacking was pretty close to the same in the dark green column... 

Both were 64" bows or close to it...

  I'll continue on this tomorrow...  Too tired...  Just got back from a friend's memorial ceremony...  Only 35yrs old...  I am gonna miss the guy...  He was kind of a little brother to me...