That really is the kind of stress carbon fiber CAN"T take. This boat is worth crap now as it will fail. It looks OK but lost its integrity, add enough stress and see it crack .
What you did is a good visual test of strength,but I am the lead technician at an aircraft composite repair shop, and what you just did with that hammer has catastrophic effects to the resin/fiber matrix. There is probably micro dis-bonding between the layers which will leave a void that left untreated with cause the layers to separate. Carbon also has a nasty habit of retaining water if the surface coating is damaged. So I wouldn't suggest anyone to do this for fun to their own kayak.
Usually this kind of impact does lead to damage in the form of delaminations (ply separation), which is a matrix failure and is not necessarily visible on the surface. Not sure if that matters though.
Standing on the kayak didn't impress me as I can do that on my P&H boats with zero compression. However, i will not hit my boats with any kind of hammer just in case. This boats looks sweet i must say.
I would be afraid that after watching this video I would be over-confident. Kind of like when they said the Titanic was unsinkable. Although that's not a fair comparison because I've read that the Titanic was actually made with inferior metal.
thats a real fine yak , love to have one ! and the dead blow hammer (thats what it is called ) named by snap-on tool co.. i have 3 of them diff. sizes . puts alot more force on the surface than just a regular hammer. it has lead shot in it , causes the impact to be more concentrated because it will not bounce . I will by one of these yaks for sure ! dang fine product Necky! if you are out in the cold ocean you dont want a cheaply made boat !
This thing is light years ahead of anything on the market, and yet the critics still come out of the woodwork. So many people think they are put on this earth to tell everyone else what their faults are.
Lots of experts on here... Barnacle encrusted rocks blah blah blah.
The demonstration is showing resistance to shattering. If he shot it with a shotgun and put a big hole in, what would THAT prove? That it's an inferior product? How would you know? Jackasses.
That is NOT a sledgehammer. It's a dead blow mallet, designed for accurate hit without bouncing back.
15 lbs of combined weight of his arm and hammer, hitting hull with a flat plastic hammer designed not to scratch things, is NOTHING like impact of 250+ lbs of boat+paddler onto a jagged rock.
While it IS very impressive, its not representative of the type of impacts experienced in rock gardens where the rocks are typically barnicle encrusted, and so impacts are point impacts, and thats where Carbon Fiber will fail. To deal with those kind of point impacts you need to use Kevlar, so while this boat may be light, and stiff, this test is of little value :(
I took a Chatham 16 boat out offshore Santa Cruz harbor in small craft advisory conditions...and it was still super-stable in all that foamy chop. Drop the skeg a little bit, and you'll hold a line quite well too. All in all, a great boat for playing out in the rough. Necky hit a home run on this one for sure!
Thank you, for your comments and even more-so for your response. I contacted the designer & tester and this was his response to your comment. "What they see at 2:43 is deflection of the seam for sure, but it is fully intact. The point of the video is simply that these lay-ups can take a heck of a hit and get you home. That boat is now in our test fleet, and has been since. Absolutely there will be "some" inter-laminar damage with such hits, but again, the boat is fully functional"
No boat is indestructible! This is an extremely well built product that can stand up to some serious abuse. I own several boats of my own, am an avid paddler and would not conduct this same test on any one of my own. That being said, I would have absolutely no reservations about using the test boat above for a day or multi-day paddle and would gladly purchase it as is.
@SeaKayakerMagazine would be more confident if it would withstand a real grown man hitting it full on with a 20 lbs sledge. carbon fiber is notorious for notwithstanding impact. even in f1 cars the use of carbon fiber is excluded from frames. it just is not as good as real metals . however a honeycomb metal and fiber constructinon does get closer.
stronger than a straight plastic? yes of course. carbon fiber composites are many times stronger. it's used in formula 1 cars for instance. aside from being a bit time consuming to make it's the best so far
1. He did not crack the seam. There was no damage to this boat. The point being, this boat is designed for playing in rock gardens amongst other things and this was a great demonstration of the abuse the boat could take.
2. The sledge was a 5 lb sledge and was filled with lead shot. It would to some damage so saying this is just a rubber mallet is invalid. This was an impressive test.
what a waste of a good boat, should of used after effects before upload
fuzzynostic 4 days ago
That really is the kind of stress carbon fiber CAN"T take. This boat is worth crap now as it will fail. It looks OK but lost its integrity, add enough stress and see it crack .
beedooo 2 weeks ago
What you did is a good visual test of strength,but I am the lead technician at an aircraft composite repair shop, and what you just did with that hammer has catastrophic effects to the resin/fiber matrix. There is probably micro dis-bonding between the layers which will leave a void that left untreated with cause the layers to separate. Carbon also has a nasty habit of retaining water if the surface coating is damaged. So I wouldn't suggest anyone to do this for fun to their own kayak.
motorbreath5point0 3 weeks ago
Usually this kind of impact does lead to damage in the form of delaminations (ply separation), which is a matrix failure and is not necessarily visible on the surface. Not sure if that matters though.
jabo109k 4 months ago
1:19 NOOOOOOOOOOOOO!!!
MADEINMAIDEN 4 months ago
Standing on the kayak didn't impress me as I can do that on my P&H boats with zero compression. However, i will not hit my boats with any kind of hammer just in case. This boats looks sweet i must say.
onlywhenpissed 5 months ago
woah.. good quality....
krakoukas38 6 months ago
that is not a sledge hammer, its a rubber deadblow mallet. No doubt resin infusion is the best way to do it, but its not a sledge hammer.
dranglongboards 6 months ago
I would be afraid that after watching this video I would be over-confident. Kind of like when they said the Titanic was unsinkable. Although that's not a fair comparison because I've read that the Titanic was actually made with inferior metal.
zliminator 6 months ago
thats a real fine yak , love to have one ! and the dead blow hammer (thats what it is called ) named by snap-on tool co.. i have 3 of them diff. sizes . puts alot more force on the surface than just a regular hammer. it has lead shot in it , causes the impact to be more concentrated because it will not bounce . I will by one of these yaks for sure ! dang fine product Necky! if you are out in the cold ocean you dont want a cheaply made boat !
martinplayer62 6 months ago
I've never seen any plastic-coated rocks like that little hammer
kw757 10 months ago
whats the strenth difference between infusion and prepeg?
davetileguy 1 year ago
imagine what would happen with a honeycomb k1...
evgeny500 1 year ago
This thing is light years ahead of anything on the market, and yet the critics still come out of the woodwork. So many people think they are put on this earth to tell everyone else what their faults are.
MrZeddy100 1 year ago
what is the brand of this kayak?
gtods 1 year ago
let me hit it with my hammer if it stands up to me ill buy 2
tyler55g 1 year ago
you know, I don't care how tough that boat is, if the shopkeeper catches you beating that damn kayak with hammer, you're a dead man, geez.
Darthbelal 1 year ago
Could you tell me what thickness you use for the Soric core material.
JustWonderingHowToDo 1 year ago
i dont no how i came across this video.. but that is one god dam sexy kayak!
wilson22490 1 year ago
That's the one i need!
Sluggecko 1 year ago
if I did this to my fiberglass kayak the day would end with me using a vacuum to clean up all the shards on the floor. love the boat
bdodge83 1 year ago
@bdodge83
Agreed!
SeaKayakerMagazine 1 year ago
I don't think this video tries to sell anything specific. it rather tries to share the endless possibilities of composite construction.
some posts here result rather juvenile, as for the allegedly damaged seam kayak;
send it to me, I'd go paddle it without hesitation.
Necky rocks!
onejbo 1 year ago
hi, i need a help!
i made some composite structure by resin infusion and it work well but after i have a problem ,,
when i spray 1-2 hands of clearcoat but i have the famous problem of pin hole in the surface!!
i try to degass the resin before to infuse. please, have you a solution for my problem? thank you very much
shkssj88 2 years ago
look at when he hits the seam the second time it looks as it it buckles inward then pops back out real fast....
getmeoutofiraq05 2 years ago
@2:28 a "mathacolate" adhesive? What kind of adhesive?
KombiPode 2 years ago
Lots of experts on here... Barnacle encrusted rocks blah blah blah.
The demonstration is showing resistance to shattering. If he shot it with a shotgun and put a big hole in, what would THAT prove? That it's an inferior product? How would you know? Jackasses.
10thAveFreezeOut 2 years ago
Thanks for the feedback....
Paul
Sea kayaker magazine
SeaKayakerMagazine 2 years ago
who you going to sell that to?
futoandutoo 2 years ago
A wood and fiberglass stitch and glue kayak could also take that kind of abuse, in fact i'm of to the garage to find out :)
tropnevad25 2 years ago
That is NOT a sledgehammer. It's a dead blow mallet, designed for accurate hit without bouncing back.
15 lbs of combined weight of his arm and hammer, hitting hull with a flat plastic hammer designed not to scratch things, is NOTHING like impact of 250+ lbs of boat+paddler onto a jagged rock.
Graphic,yes, accurate representation? Hell no.
dmitrioguz 2 years ago
While it IS very impressive, its not representative of the type of impacts experienced in rock gardens where the rocks are typically barnicle encrusted, and so impacts are point impacts, and thats where Carbon Fiber will fail. To deal with those kind of point impacts you need to use Kevlar, so while this boat may be light, and stiff, this test is of little value :(
stevewort 2 years ago 5
Hammering out the dents!
Lehmann108 2 years ago
Please use a rock.
dinnerandashow 2 years ago
And then he sells it the next day to someone...
TheMedievalMan 2 years ago
It should be pointed out, that is NOT a sledge hammer, it is a dead blow hammer. It's designed to provide a soft impact rather than a crushing blow.
x65535x 2 years ago 2
Who wants the demo unit? lol
beaman220 2 years ago
IF you ever come near my kayak with that hammer...this is a warning. I have a gun!
gregfl 2 years ago
I've also seen a hammer test on the delta kayaks that is pretty impressive.
maydanlex 2 years ago
I have youst padled stockolm-Helsinki in my homemade kayak.The kayak is 17fet long 70cm wide and 26pounds.
Made it from carbon kevlar and dyvinicell
nogringovikingo 3 years ago
how many layers of laminate?
creatingbliss 3 years ago 2
I took a Chatham 16 boat out offshore Santa Cruz harbor in small craft advisory conditions...and it was still super-stable in all that foamy chop. Drop the skeg a little bit, and you'll hold a line quite well too. All in all, a great boat for playing out in the rough. Necky hit a home run on this one for sure!
Massikut 3 years ago
I saw incidental damage to the seam at 2:43...
Massikut 3 years ago 4
Thank you, for your comments and even more-so for your response. I contacted the designer & tester and this was his response to your comment. "What they see at 2:43 is deflection of the seam for sure, but it is fully intact. The point of the video is simply that these lay-ups can take a heck of a hit and get you home. That boat is now in our test fleet, and has been since. Absolutely there will be "some" inter-laminar damage with such hits, but again, the boat is fully functional"
SeaKayakerMagazine 3 years ago
No boat is indestructible! This is an extremely well built product that can stand up to some serious abuse. I own several boats of my own, am an avid paddler and would not conduct this same test on any one of my own. That being said, I would have absolutely no reservations about using the test boat above for a day or multi-day paddle and would gladly purchase it as is.
Paul R. Riek
Advertising & Promotions Manager
Sea Kayaker Magazine
SeaKayakerMagazine 3 years ago
@SeaKayakerMagazine would be more confident if it would withstand a real grown man hitting it full on with a 20 lbs sledge. carbon fiber is notorious for notwithstanding impact. even in f1 cars the use of carbon fiber is excluded from frames. it just is not as good as real metals . however a honeycomb metal and fiber constructinon does get closer.
circusboy90210 1 month ago
As it I. Its a good material, but I wonder if composites can match the durability of Polyehtylene.
pamlico140 3 years ago
stronger than a straight plastic? yes of course. carbon fiber composites are many times stronger. it's used in formula 1 cars for instance. aside from being a bit time consuming to make it's the best so far
DanFrederiksen 3 years ago
ya i saw it too, just when the video cuts out .. hehe..
owvenus 3 years ago
@Massikut Right
Sluggecko 1 year ago
Having shot the video....
1. He did not crack the seam. There was no damage to this boat. The point being, this boat is designed for playing in rock gardens amongst other things and this was a great demonstration of the abuse the boat could take.
2. The sledge was a 5 lb sledge and was filled with lead shot. It would to some damage so saying this is just a rubber mallet is invalid. This was an impressive test.
Paul Riek
Sea Kayaker magazine
SeaKayakerMagazine 3 years ago
1:44 - Someone creeps in on him from the back door
birddog165 3 years ago
Yup, he cracked that seam...oops.
Massikut 3 years ago
I think he cracked that seam.
johnknoefler 3 years ago
the sledge hammer was actually a rubber mallet
He should use a full size sledge hammer instead of the small rubber mallet! that will be a true test!
bteeuwen 4 years ago
It's a beautiful kayak, but that color would make it almost invisable in the water.
Especially on an overcast day, fog or rain.
Wafflefoots 4 years ago
I would not buy this boat, this guy has damaged it with his test. CF offers many advantages, but there will be non visible impact damage.
bullychief 4 years ago
shop soiled ,ill give ya good price for her.
H202 4 years ago
what about with a sledge hammer?
zboy812 4 years ago
Interesting video. Thanks for posting.
David H. Johnston
paddlinginstructor(dot)com
akasharkbow 4 years ago