Rod Calculation

Posted: Sun Jan 03, 2010 6:58 pm

Most Boat rods are marked with the poundage but some are marked with the line poundage.
Is there a way to covert one to the other or is 15 lb line recommendation the same as a 15lb rod?

A Confused Rabbi
Cheers
keith big grin

Posted: Sat Jan 09, 2010 2:05 am

wow blimey keith!!! your asking a question! not a subject im versed on but i'll try and have a ask around for you.

Andy1i

Posted: Sat Jan 09, 2010 8:18 am

Hi Keith, just checked on line 15lb Boat takes 12 - 18lb line Leonard

http://www.worldseafishing.com/reviews/fishingrods/mti15lb_offshore_review.html

Posted: Sat Jan 09, 2010 8:21 am

Keith me old mucker, I'm guessing they are both the same. If you had a 15lb rod, it would be no use putting a 30lb line on it, as the rod would snap before the line. By the same token, its no use putting a line of greater B/S on a rod than the maximum stated, for the same reason. So i'm going for poundage and B/S of line being equal. does this make sense, cos its early and i dont function well in the mornings. worried

Posted: Sat Jan 09, 2010 8:52 am

Thats the thought that occured to me it's just that I was unsure as I have a 20lb rod with a thinner tip, so thats what got me confussed.
Cheers
keith big grin

Posted: Sat Jan 09, 2010 9:40 am

come one keith you should have known what the lb age means its the breaking strain on the product

Dave big grin

Posted: Sat Jan 09, 2010 10:33 am

My point is why give two different readings as most are given in class poundage whilst one rod says 15lb line and not 15lb class.

One other point newbies tend to think that a 15lb rod wont catch a bigger fish, not realising that a 30lb cod does not put 30lb weight on the rod until its clear of the water
Cheers
keith big grin

Guest

hi keith good question i know that in my pike rods the rod whight ie 2oz or 3oz means that the amount of whight it takes to bend the tip to a 90 degree angle so dose a15lb class sea rod mean it takes that amount to do the same or even say a 6oz beach caster
steve

Posted: Sat Jan 09, 2010 2:33 pm

The class designation of a boat rod is the breaking strain of line that the rod blank is designed to operate with. Generally a leeway of 10 to 20% up or down is acceptable. With faster action blanks a gradiated classification can be suggested. Ie 20lb-30lb rod. The reality is, the blank performs best with a line in the middle , about 25lb. Too strong a line leaves a rod at risk of damage. Too light a line means the rod doesn't get bent sufficiently to act as a shock absorber leading to easily snapped line. The rod classification has nothing whatsoever to do with the weight of fish it catches!
Stick to about 10% of the rods classification and everything should work properly.

Posted: Thu Jan 14, 2010 9:01 am

If you have a blank(or finished rod)that does not make optimum line strength clear work out its test curve by attaching a spring balance to the tip and bending rod/blank to 90 degrees.note reading in lbs/kg.multiply reading by 5(correct me if Im wrong on this!) to give an optimum line strength in lbs/kg for use with that blank.As has been pointed out minor variations either side of this figure are acceptable depending on the type of blank,but Ive always found it to be a good starting point if no figures are quoted.On the subject of casting weight ratings on beach rods (say 4-8oz)would an 8oz sinker actually bend the rod to its full test curve before any casting load is applied to the blank?Be interested to hear your views as I am still a relative newcomer to modern sea tackle.Cheers-Mick