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Tethrd Carbon Fiber Platform

raisins said:
i don't mean to have to get the last word, but the air isn't a better conductor of heat than a metal

the air is able to cool things quickly via convective cooling

when you 'attach metal to your feet', you put something on your feet capable of conductive cooling

that larger surface area is then prey to greater convective cooling from the air

(cooling is generally conductive, convective, radiative, or evaporative)


if you look at the conductivity values, air is many times less conductive than aluminum

it is just that wind blows, which then causes convective cooling, but we've all noticed that

when you stand on metal, the heat from your feet tries to warm the entire structure and the wind then hits the metal and moves the heat into the air, making room for more heat from your feet to the metal...you've basically 'enlarged your feet' with the metal so that convective cooling happens more quickly

specific heat capacity also plays a role (why 50 f water feel colder than 55 f air)

insulators largely work by trapping air, due to the properties of air, and not allowing it to move, which would cause cooling via convection
Click to expand...

Bring in the science guys.

Of course CF will feel warmer than aluminum, but can we quantify the heat transfer delta?

Is it sooo great that CF/Fiberglass/thermoplastic/etc. will result in a significant feeling of "warmer feet"?

I've stood on exactly 0 CF platforms. @Samcirrus has.
 
Plebe said:
Bring in the science guys.

Of course CF will feel warmer than aluminum, but can we quantify the heat transfer delta?

Is it sooo great that CF/Fiberglass/thermoplastic/etc. will result in a significant feeling of "warmer feet"?

I've stood on exactly 0 CF platforms. @Samcirrus has.
Click to expand...

probably depends in part upon temperature, wind speed, and how much insulation you have in your boot bottoms

carbon fiber is pretty cool stuff, i looked up conductivity of carbon fiber....and one source was 4 times more than aluminum....yet carbon fiber bow risers are warmer

it probably depends upon how the carbon is laid up and molecules arranged, carbon might be worse than metal in some cases

there's some folks here that work with it, i think, hopefully they know

i assumed carbon had lower conductivity than metals (closer to wood i guessed), and i was wrong in the few cases i looked at
 
I must confess I haven't studied the science of heat conduction and retention of CARBON fiber. There are probably many variables like with metal, thickness has alot to do with it.

Raisins, you are spot on in your points! And I like you, am surprised about yr last point.

The only temperature I care about with CF in my work building aircraft, is that it can't get too hot or it'll delaminate and melt.
My main point is that I believe the amount of surface connection between our studded boots and the metal or CF strips that make up the stand is minimal compared to the airflow over our boots, so I dont think it makes much difference between the two materials.
From my experience if I wasn't wearing toe warmers in temps below 20F my feet and toes were cold. And standing on a aluminum deer stand without a foam floor pad(which is what I have on my platform) didn't have any noticeable difference. I'd have to do a test of some sorts to be certain. I think it all depends on your socks, boots, and body circulation!
 
As for any concerns about temp changes for affecting safety, CF is on Jets that get -60F way up high without trouble, and can get up to 200F before damage occurs!
All that to say I'm working on my 3rd CF platform and am making a preachers seat/JX3 saddle from an old damaged CF plane seat.
 
CF is a great material and absolutely worth the upgrade in some applications.

However, CF in hunting platforms is more beneficial to marketing than anything else. Nothing wrong at all with quality aluminum
 
Samcirrus said:
I must confess I haven't studied the science of heat conduction and retention of CARBON fiber. There are probably many variables like with metal, thickness has alot to do with it.

Raisins, you are spot on in your points! And I like you, am surprised about yr last point.

The only temperature I care about with CF in my work building aircraft, is that it can't get too hot or it'll delaminate and melt.
My main point is that I believe the amount of surface connection between our studded boots and the metal or CF strips that make up the stand is minimal compared to the airflow over our boots, so I dont think it makes much difference between the two materials.
From my experience if I wasn't wearing toe warmers in temps below 20F my feet and toes were cold. And standing on a aluminum deer stand without a foam floor pad(which is what I have on my platform) didn't have any noticeable difference. I'd have to do a test of some sorts to be certain. I think it all depends on your socks, boots, and body circulation!
Click to expand...

it's amazing stuff, some folks are saying once they perfect graphene production that we'll have hearing aid sized batteries that will beat big lithium ions

i'd like a carbon fiber company to learn how to make sticks and platforms and not a saddle company doing it the opposite!

my thoughts were more theoretical on the platform because i think our boots and socks do a great job keeping the metal away, so the difference is small if any

you can really feel it with a metal bow in your bare hand though

i wear boot blankets with hand warmers in them, so my feet are never cold
 
md5252 said:
CF is a great material and absolutely worth the upgrade in some applications.

However, CF in hunting platforms is more beneficial to marketing than anything else. Nothing wrong at all with quality aluminum
Click to expand...

until they drop that 1 pound platform the size of an original predator....and it is strong and works.....i don't wanna write down how much i'd pay because a company might read it!
 
md5252 said:
CF is a great material and absolutely worth the upgrade in some applications.

However, CF in hunting platforms is more beneficial to marketing than anything else. Nothing wrong at all with quality aluminum
Click to expand...
Well it is lighter! That's what everyone who hunts deep woods is chasing after! Lol, that why I'm making a 3rd one.....to have a better shape and be lighter!
 
raisins said:
i'd like a carbon fiber company to learn how to make sticks and platforms and not a saddle company doing it the opposite!
Click to expand...
Yep. And I wonder what that new Tethrd platform will cost, Carbon fiber is in short supply atm and quite pricey!
 
So they're saying the Vader weighs in at 3lbs, that's 25% lighter than the current 4lb XL, that math would transfer to the standard size cf coming in at 2.25lbs. I'd bet the price is near the $500 range also.
 
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My only experience with carbon fiber is my mountain bike and I love it over the previous aluminum frame I had.


Sent from my iPhone using Tapatalk
 
Didn’t Timber Ninja come out with a CF platform last year?
 
AttackMode said:
A bit of a better pic if anyone hasn't seen it yet One thing I don't like is the thing at the top of the tube. If they made this more like a step/handle it could definitely be used as a climbing platform.
View attachment 59942
Click to expand...
I like the top piece and hope they release one that can be retro fitted on my predator.
 
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