Lets talk GEC!

JohnDF said:
The next one.
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vz4tir7.png
 
EngrSorenson said:
I hadn’t seen the complaints on the original recurved 86...

I don’t personally understand the purpose ... but surely there’s a reason for it?
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It's likely the potential for improved cutting ability...

agrussell.com

Recurved Blades

Learn the advantages and disadvantage of recurved blades. A.G. explains recurved blades in detail
agrussell.com agrussell.com
 
CallMeDave said:
It's likely the potential for improved cutting ability...

agrussell.com

Recurved Blades

Learn the advantages and disadvantage of recurved blades. A.G. explains recurved blades in detail
agrussell.com agrussell.com
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Thanks for the info... I'm digesting it, but I'm having problems with some of the bones of the argument, such as:
The recurve is useful for a few reasons. The recurve actually lengthens the edge without increasing the length of the blade itself.
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The fellow that says you've gained any meaningful length by adding a recurve to a pocket knife underestimates the scale of measurement.

Consider a circle of 2 inch radius. At 45 degrees angle of incidence there's a 16% increase in edge length (normalized to the radius).
Or 0.32" increase... and that's a huge recurve compared to the size of the average pocket knife blade.
It's the difference between 2.82 inches vs 3.14 inches.
It would be a 0.59" deep cut out into the blade to earn you a quarter inch.

8yZEczO.jpg
 
EngrSorenson said:
Thanks for the info... I'm digesting it, but I'm having problems with some of the bones of the argument, such as:

The fellow that says you've gained any meaningful length by adding a recurve to a pocket knife underestimates the scale of measurement.

Consider a circle of 2 inch radius. At 45 degrees angle of incidence there's a 16% increase in edge length (normalized to the radius).
Or 0.32" increase... and that's a huge recurve compared to the size of the average pocket knife blade.
It's the difference between 2.82 inches vs 3.14 inches.
It would be a 0.59" deep cut out into the blade to earn you a quarter inch.

8yZEczO.jpg
Click to expand...
It's very slight, most people (normal people not you all) would not even notice it is there and has no real affect on sharpening. (Or edge length)😉
 
EngrSorenson said:
Thanks for the info... I'm digesting it, but I'm having problems with some of the bones of the argument, such as:

The fellow that says you've gained any meaningful length by adding a recurve to a pocket knife underestimates the scale of measurement.

Consider a circle of 2 inch radius. At 45 degrees angle of incidence there's a 16% increase in edge length (normalized to the radius).
Or 0.32" increase... and that's a huge recurve compared to the size of the average pocket knife blade.
It's the difference between 2.82 inches vs 3.14 inches.
It would be a 0.59" deep cut out into the blade to earn you a quarter inch.

8yZEczO.jpg
Click to expand...
On some aggressively recurved blades, the "downward" portion provides additional pressure, making the cut feel easier. I doubt that the miniscule increase in sharpened edge really enters into it in any way. The recurve on the 86, IMO, can simply be ignored.
 
RBB2 said:
On some aggressively recurved blades, the "downward" portion provides additional pressure, making the cut feel easier. I doubt that the miniscule increase in sharpened edge really enters into it in any way. The recurve on the 86, IMO, can simply be ignored.
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Certainly, I would believe there’s a big benefit to knives like Kukris and other such tools. My brush axe has a very handy recurve. Pruning knives and carpet knives… Hawk bills of all types… all handy.

not sure what they were getting at with the 86 though. I’ll never know. The answer is blowing in the wind.
 
I think we're overthinking the recurve bit. It is likely nothing more than a stylistic choice and the recurve itself on these blades (86s, 97s, 98s), though enough to catch the eye, is barely perceptible in use or even sharpening. Though I have sharpened my 97s more frequently than my 86s, I have had zero issues getting a good edge on them.

Typically, I do not like recurves on knives smaller than something I would use to delimb a tree. In this case though, it is subtle enough to not be a bother at all - which tells me it is just a style thing.
 
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EngrSorenson said:
I hadn’t seen the complaints on the original recurved 86, but I thought I’d noticed it in the mock-ups of the original run and this one and it did turn me off, especially considering the proximity to the 93’s.

I don’t personally understand the purpose, and I’m a little concerned it’s going to make sharpening a little tricky, but I’m willing to give it a chance. I just get the impression that I’ll end up sharpening until it’s flat to be able to actually sharpen the apex in the recurve.

it just seems to me that one of the functions of the choil is to help prevent recurve after repeated sharpening, and this blade starts out with one… feels wrong… but surely there’s a reason for it?
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Busto said:
This^^^ I have walked away from some Beautiful knives because they were Recurve Blades. I have a Coffee can with recurve grinding boo-boos because they don't belong on a blade this size.
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Absolutely no problems sharpening the blade. I had a similar concern, but it got real sharp just fine. The angle of the belly made for a really, REALLY nice cutter.
 
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