anyone have suggestions on how much power this blank has and if using it for heavy jika rigs and other punching rigs in heavy densce pads and grass what type of guide set up i should use im thinking on using either straight 25 lb tatsu or straight 65 pound braid dont know witch braid though

PB761XXHF
Length: 7 ft 6 in
Action Angle: F • 64-degrees (RDA) •  74-degrees (CCS)
Power: XX Hvy / 1150gr (RDA) • 42.0 ERN (CCS)
Weight: 3.35oz.
Butt Dia: 15.92 mm
Tip Size: 2.25mm (6.0)
Lure Wt: 2 to 5oz
Sugg Line Wt: 12 -20 mono
20 – 60lb braid

 

I don't know how an ERN number is measured but RDA power x 1.3 will get you pretty close to CCS IP

Sure looks like a beast!

ERN is a derived number based on the grams (Intrinsic Power, IP) it takes to deflect the blank the specified 33% of its length.  It was derived to help match the power of fly blanks/rods to fly line standard weights.  For example, if you had a blank with an ERN of 8, an 8 weight line would probably match it well.  This chart will allow one to see what the ERN is for any IP.

 

https://www.rodbuilding.org/library/nfc_urrs_masterchartv1.0.pdf

On 9/23/2023 at 7:25 AM, MickD said:

It was derived to help match the power of fly blanks/rods to fly line standard weights. 

I don't have any experience with 42wt fly rods ?

1 hour ago, MikeK said:

I don't have any experience with 42wt fly rods ?

It was initially developed for fly rods, but it works for any rods.  Unless you are trying to match a fly rod to fly line you are IMHO better off using IP (Intrinsic Power) which is a pure, underived number.  IP = the number of grams needed to deflect the blank/rod to a distance = to 1/3 its length. 

I would like to make the point that it is hard to tell without objective numbers what is really going on with modern graphite rods.  On another forum recently a person reported having received two Point Blanks, one a ML and one a M power, both 6 ft 9 inches.  Both he and his son thought the ML was more powerful than the M based on just feeling them, jiggling them, whatever one can do without measuring and fishing them.  When he did the CCS numbers, the M was more powerful, and when he fished it, cast it, it was more powerful.  It fished more powerfully as it was advertised to do.  If you are not measuring your rods/blanks with CCS, you don't know before fishing them what you have.  Many of us builders have been pushing manufacturers to provide CCS numbers on their products, and can use your help.  If in doubt on a blank/rod, ask the manufacturer for the CCS numbers.  They most likely already have them but are reluctant to publish.  Push them.  We are gaining, but it is far from over.