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Jan 19, 2022 7:50 PM

mfrybeasley

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140589

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1893

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128

I'm highly skeptical of their claim about the strength of hemp fibers.

4 years ago | Likes 3 Dislikes 2

Gives a whole new meaning to "mile high club".

4 years ago | Likes 5 Dislikes 0

4 years ago | Likes 4 Dislikes 0

Flying High

4 years ago | Likes 112 Dislikes 1

Why is this not top comment?

4 years ago | Likes 6 Dislikes 0

suuuure

4 years ago | Likes 4 Dislikes 0

is this like the other hemp composite body panels - 98% plastic / metal - with 2% hemp ?

4 years ago | Likes 11 Dislikes 0

4 years ago | Likes 6 Dislikes 1

4 years ago | Likes 13 Dislikes 0

I swear that movie mixed up Cannabis and Nitrous Oxide.

4 years ago | Likes 2 Dislikes 0

my guess was pcp. probably both

4 years ago | Likes 2 Dislikes 0

"What keeps happening to our hemp-oil fuel? It keeps disappearing!"

4 years ago | Likes 9 Dislikes 0

You understand hemp oil has horrible efficiency....

4 years ago | Likes 5 Dislikes 1

So... resin fiber composite and fuel oil. Yeah, nobody has ever thought of those items before.

4 years ago | Likes 16 Dislikes 2

Getting high on cannabis...a whole new twist.

4 years ago | Likes 36 Dislikes 2

Flight 420 cleared for landing on runway 69

4 years ago | Likes 8 Dislikes 1

"according to the company".... Are YOU going to trust a bunch of stoners?

4 years ago | Likes 5 Dislikes 1

cough cough BULLSHIT. cough

4 years ago | Likes 4 Dislikes 1

Which is marketing bullshit.* I'm sure the firm that SELLS HEMP is going to make claims about how much better their product is.

4 years ago | Likes 7 Dislikes 1

Source: https://hempearth.ca/2020/05/06/the-worlds-first-plane-made-from-and-powered-by-hemp/

4 years ago | Likes 2 Dislikes 0

Hmmm a url with mepearth as its name. No bias there......./snark

4 years ago | Likes 1 Dislikes 1

You mean the company who is developing it? Or did you want me to link to someone's post on Twitter that's a screencap of an Instagram page?

4 years ago | Likes 2 Dislikes 0

Planes aren't made from steel so I don't know how that compares...

4 years ago | Likes 40 Dislikes 3

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4 years ago (deleted Jan 19, 2022 10:12 PM) | Likes 0 Dislikes 0

Its almost as if "strength" isn't necessarily the metric we need to measure the material by.

4 years ago | Likes 7 Dislikes 0

Big airliner planes are made from composite materials now

4 years ago | Likes 7 Dislikes 0

You fools! That's not what they meant when they said, "let's get high!"

4 years ago | Likes 2 Dislikes 0

Fyi, turbines can run on nearly any liquid/gas fuel, they use special jet fuel because it can guarantee a clean complete combustion...

4 years ago | Likes 5 Dislikes 0

Those are piston engines and a kit airplane https://www.velocityaircraft.com/v-twin

4 years ago | Likes 1 Dislikes 1

Yeah, if you saw the description, it doesn't say "made" it says "designed" meaning it's probably someone's pipe dream by theoretical numbers

4 years ago | Likes 1 Dislikes 0

Also, because of widespread adoption of Jet A or Jet A-1, turbines will continue to get optimized specifically for those fuels

4 years ago | Likes 3 Dislikes 0

And jet fuel (which is a lot like kerosene) is taxed differently (if at all).

4 years ago | Likes 1 Dislikes 0

It's very often kerosene with additives for antistatic or for temperature adjustments, but all jet fuel designations are specifications....

4 years ago | Likes 2 Dislikes 0

Of performance rather than of composition, therefore they *can*make it from anything that can teach those specs

4 years ago | Likes 1 Dislikes 0

How high does it get?

4 years ago | Likes 2 Dislikes 0

Just fyi, the plane in the photo is not what they are talking about. The plan pictured is a varient of the long-ez home built airframe.

4 years ago | Likes 7 Dislikes 1

Another Burt Rutan special.

4 years ago | Likes 2 Dislikes 1

Velocity V-Twin to be exact

4 years ago | Likes 2 Dislikes 0

?fb

4 years ago | Likes 2 Dislikes 0

That was George Carlin. Of course he was high.

4 years ago | Likes 2 Dislikes 0

Green is sus. That's a velocity v-twin kit plane. https://www.velocityaircraft.com/v-twin

4 years ago | Likes 32 Dislikes 3

Less expensive than I thought I'd be

4 years ago | Likes 2 Dislikes 0

I knew that looked familiar. I was thinking it looked a lot like a Rutan design, but couldn't place it. It's not, but it's inspired by one.

4 years ago | Likes 4 Dislikes 0

I hope to be have time and money for one once my midlife crisis kicks in.

4 years ago | Likes 3 Dislikes 1

Looks like they're the ones who built it: Florida company, Velocity, Inc. is set to manufacture the plane...

4 years ago | Likes 2 Dislikes 0

i don't like the x times stronger claims. Materials have multiple properties that could be "strength" and it can't be better at all of them.

4 years ago | Likes 167 Dislikes 2

Who cares? I mean if you can smoke it.

4 years ago | Likes 2 Dislikes 0

For working with microalgae based oil, I'm also sure oil from hemp is neither cheap neither sustainable at large scale

4 years ago | Likes 13 Dislikes 1

Compared to regular oil, at least its renewable...

4 years ago | Likes 3 Dislikes 0

Not if we don't manage nutrients better. We also are amid a phosphorous crisis, and N fertilizers are derived from fossile fuel

4 years ago | Likes 1 Dislikes 0

Plus this design looks more like a composite. Apples to apples, how strong is it compared to a composite? Tensile, compression, etc

4 years ago | Likes 4 Dislikes 0

And it's not. Likely tensile. They figure you don't know about sheer, or compressive strength, so they talk to us like chumps

4 years ago | Likes 2 Dislikes 0

e.g. something can't be more brittle and more ductile, but both properties are relevant for different structual applications.

4 years ago | Likes 31 Dislikes 0

Ice is "harder" than "metal"

4 years ago | Likes 5 Dislikes 0

This. Also we don't make planes out of steel, they're usually aluminum alloys.

4 years ago | Likes 15 Dislikes 0

This material is probably comparable to carbon fiber composite, hemp fiber in place of the carbon filaments.

4 years ago | Likes 5 Dislikes 0

So maybe it makes more sense to compare this with traditional composites used in planes rather than something we don't actually use.

4 years ago | Likes 2 Dislikes 0

4 years ago | Likes 285 Dislikes 1

Lmfao that is exactly what I was thinking

4 years ago | Likes 1 Dislikes 0

That movie has another cool vehicle. v

4 years ago | Likes 38 Dislikes 0

MUF DVR

4 years ago | Likes 5 Dislikes 0

Cheech and Chong did it.....

4 years ago | Likes 23 Dislikes 0

You gonna eat the rest of that Hot Dog...

4 years ago | Likes 4 Dislikes 0

damn, beat me to it by 2 hrs and with the exact same pic I was going to use.

4 years ago | Likes 8 Dislikes 0

Hey man, how's my driving?

4 years ago | Likes 4 Dislikes 0

Ah! You beat me to it!

4 years ago | Likes 2 Dislikes 0

"it's called, fibre weed"

4 years ago | Likes 2 Dislikes 0

Thanks for posting

4 years ago | Likes 3 Dislikes 0

One of my favorite movies.

4 years ago | Likes 3 Dislikes 0

Lost Due to Incompetence (Theme for a Big Green Van) by Yesca: https://www.youtube.com/watch?v=jKKN-CtpQ_c

4 years ago | Likes 2 Dislikes 0

We are changing from a code 3 direct pursuit to a code 347

4 years ago | Likes 2 Dislikes 0

Where is your license? It's back there on the plate.

4 years ago | Likes 1 Dislikes 0

Exactly what I thought of lol

4 years ago | Likes 1 Dislikes 0

Well, that certainly explains Lamar's design choice... https://youtu.be/6I35sjMgkEA

4 years ago | Likes 2 Dislikes 0

Yup, and the whole mission is a reference to a similar one CJ did in San Andreas

4 years ago | Likes 1 Dislikes 0

Now that I don't remember... which is weird considering San Andreas was my introduction to GTA.

4 years ago | Likes 2 Dislikes 0

Here you go. https://www.youtube.com/watch?v=Muqo_uwiKrY

4 years ago | Likes 1 Dislikes 0

Ah yes that one, a bit of a stretch to call them related beyond weed and a van being involved. CJ didn't even get hotboxed on the way. Lol

4 years ago | Likes 1 Dislikes 0

Shit, it's true: https://www.news18.com/news/auto/worlds-first-plane-made-and-powered-by-hemp-is-10-times-stronger-than-steel-2284551.html

4 years ago | Likes 4 Dislikes 2

Is that a Fox channel?

4 years ago | Likes 1 Dislikes 0

pess X to doubt, it's a kit airplane https://www.velocityaircraft.com/v-twin

4 years ago | Likes 4 Dislikes 1

Man has been claiming to be making this plane for nearly 10 years and has nothing to show for it.

4 years ago | Likes 1 Dislikes 0

Most claims of hemp as a wonder material are just from people trying to get growing weed legalised in the US.

4 years ago | Likes 1 Dislikes 0

If it catches on fire mid-flight, there will be considerably less panic

4 years ago | Likes 1739 Dislikes 3

“Up in smoke”

4 years ago | Likes 1 Dislikes 0

A smokeable plane? Keep it away from Cheech and Chong.

4 years ago | Likes 7 Dislikes 0

...calm as hindu cows...

4 years ago | Likes 3 Dislikes 0

Giving new meaning to flying high.

4 years ago | Likes 2 Dislikes 0

"STAY CALM, THERE'S A FIRE IN THE MAIN CABIN!" "dude.... why all the yelling?" "Yeah, you seriously need some chill, my man..."

4 years ago | Likes 2 Dislikes 0

Caution: may get soggy during flight and be unsmokable... err, unflyable

4 years ago | Likes 3 Dislikes 1

Hence why its called the Icarus plane... fly too high and the plane burns up...

4 years ago | Likes 1 Dislikes 0

Hey the wings on fire man! Ohhh shit that's lit ::everyone on plane laughs as it starts plummeting::

4 years ago | Likes 1 Dislikes 0

"inflight drinks and snacks will be available shortly before deplaning"

4 years ago | Likes 1 Dislikes 0

Better than at the disco

4 years ago | Likes 1 Dislikes 0

Hemp has low thc so it won’t get you high. Usually lower than 0.3%. Has all the other benefits of weed, just not high thc

4 years ago | Likes 59 Dislikes 3

Ackchyually...

4 years ago | Likes 4 Dislikes 1

Delta 8 Thc gets your high and is legal

4 years ago | Likes 1 Dislikes 0

Very true. Heard they are trying to make it illegal. Get it in while you can!!!

4 years ago | Likes 1 Dislikes 0

Delta 8 is .03% thc. The thc sold in California, is usually 80-90% thc.

4 years ago | Likes 1 Dislikes 0

Delta 8 is <.03% Delta 9 thc it's 100 Delta 8 thc

4 years ago | Likes 1 Dislikes 1

Agreed, but for the purpose of this joke, hemp will get you super-high

4 years ago | Likes 77 Dislikes 1

4 years ago | Likes 1 Dislikes 0

Oh.. I thought you meant it would burn way faster, thus kill everyone before they had time to really panic

4 years ago | Likes 30 Dislikes 0

4 years ago | Likes 3 Dislikes 0

Basically rope fibers. I have a hemp Tilly hat that is nice. Good luck getting it cleared by the FAA.

4 years ago | Likes 1 Dislikes 0

CBD, which is frequently abundant in hemp, will reduce anxiety.

4 years ago | Likes 8 Dislikes 0

Hey man is the plane on fire? Naw, it's in the air, floating on the air man. Good point, why would it float on top fire.

4 years ago | Likes 188 Dislikes 0

I read this in Cheech’s voice.

4 years ago | Likes 1 Dislikes 0

Updraft, man

4 years ago | Likes 35 Dislikes 0

That was a good movie, maaan

4 years ago | Likes 2 Dislikes 0

What’s up draft?

4 years ago | Likes 16 Dislikes 0

Not much, what's up with you?

4 years ago | Likes 15 Dislikes 0

4 years ago | Likes 1 Dislikes 0

4 years ago | Likes 11 Dislikes 0

4 years ago | Likes 2 Dislikes 0

How high are you?

4 years ago | Likes 1 Dislikes 0

IDK. Ten times stronger than steel and light? Seems like a marketing statement.

4 years ago | Likes 723 Dislikes 9

It would be a composite, hemp fibers in some matrix. Also UTS is not the only consideration for an aircraft design.

4 years ago | Likes 1 Dislikes 0

I can only imagine it's carbon fiber only the fiber is hemp fiber. We've been making planes out of composites like that for a long time.

4 years ago | Likes 30 Dislikes 1

The general term for these materials is "FRP", or "fiber reinforced plastic". Glass fibers, GRP, or more commonly fiberglass, was the 1/2

4 years ago | Likes 10 Dislikes 0

first to jump from words only used by nerdy engineers into common use, and is still the most common. Fibers can include glass, carbon 2/3

4 years ago | Likes 9 Dislikes 0

fibers, hemp, wood, or aramids (like kevlar, nomex, or nylon) (and many others in niche applications). 3/3

4 years ago | Likes 9 Dislikes 0

Old cotton fabric is good enough if you just need to make a carve-and-glue foam boat waterproof and rigid.

4 years ago | Likes 1 Dislikes 0

I mean, people don't make aircraft out of steel really, it's usually aluminum

4 years ago | Likes 15 Dislikes 0

And I doubt it's lighter than wood and cloth construction from ye olde days

4 years ago | Likes 1 Dislikes 0

That statement was made after the edibles

4 years ago | Likes 1 Dislikes 0

It's like carbon fiber and chip board. It is the glue that makes them strong.

4 years ago | Likes 4 Dislikes 0

Carbon fibre is crazy strong. But only upon one axis. Otherwise it's only as strong as the epoxy.

4 years ago | Likes 3 Dislikes 0

Maybe it's 10 times stronger per lb of metal.

4 years ago | Likes 30 Dislikes 2

It's stronger than steel without qualifier, although there's significant overlap. Steels range from 150-3000 MPa (depending on alloy 1/2

4 years ago | Likes 3 Dislikes 1

and heat treatment). Hemp fiber range from 250-4000 MPa (mostly depending on fiber diameter). 2/2

4 years ago | Likes 3 Dislikes 1

I've never smoked metal

4 years ago | Likes 13 Dislikes 0

Saying "stronger" means literally nothing without describing the stresses, yield strength, modes of failure, etc under specific conditions.

4 years ago | Likes 2 Dislikes 0

I'm stronger than several pickles

4 years ago | Likes 2 Dislikes 0

4 years ago | Likes 8 Dislikes 0

This is a modern hieroglyph.

4 years ago | Likes 2 Dislikes 0

This whole thing sounds like nonsense.

4 years ago | Likes 93 Dislikes 4

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4 years ago (deleted May 30, 2022 11:37 PM) | Likes 0 Dislikes 0

Mosquito was balsa for a lot of it

4 years ago | Likes 1 Dislikes 0

Ok boomer

4 years ago | Likes 2 Dislikes 1

It sounds like an unrealized concept, note that it says they designed it, not that they built it.

4 years ago | Likes 14 Dislikes 0

Given we don't make planes out of steel, it also feels pretty redundant.

4 years ago | Likes 2 Dislikes 0

Translated: [allegedly] hemp can apparently be a fiber reinforcement for space-age epoxy to reach similar numbers as with non-kevlar nylon.

4 years ago | Likes 2 Dislikes 0

Ford made this a long time ago and said the same thing

4 years ago | Likes 4 Dislikes 0

That was soybeans wants it?

4 years ago | Likes 2 Dislikes 0

No it was hemp

4 years ago | Likes 2 Dislikes 0

We are both right!

4 years ago | Likes 2 Dislikes 0

Correct. They did soy beans. I don't remember the hemp specifically but everyone has experimented with hemp.

4 years ago | Likes 1 Dislikes 0

It's as strong as the binder it's mixed with.

4 years ago | Likes 1 Dislikes 0

4 years ago | Likes 4 Dislikes 0

I have a hemp plastic yidaki, it can't really get wet. Guess it's come a ways in the last twenty years.

4 years ago | Likes 2 Dislikes 0

That's a didgeridoo? How do you play it without breath moisture?

4 years ago | Likes 2 Dislikes 0

It's been rained on before, dropped in a river. The sense I got was don't let it live in a damp place, or get soaked.

4 years ago | Likes 1 Dislikes 0

It'll delaminate apparently.

4 years ago | Likes 1 Dislikes 0

thickest hemp fiber least tensile strength (250 MPa) has more than the variety of steel with the least tensile strength (150 MPa).

4 years ago | Likes 230 Dislikes 2

And 7071 has a tensile strength of 572 mPa which makes hemp pale in comparison

4 years ago | Likes 5 Dislikes 1

I think you mean 572 MPa

4 years ago | Likes 1 Dislikes 0

Talking about UTS is all by itself is a bit of a problem. Tool steels are in 5200 mpa 750ksi range. I wouldn't make a vehicle out of that.

4 years ago | Likes 34 Dislikes 0

As tool steels achieve that strength by sacrificing other properties like, ductility and fracture toughness. Aerospace steels typically,

4 years ago | Likes 21 Dislikes 0

Can get up to 260-300 KSI UTS without sacrificing too much on other properties.

4 years ago | Likes 13 Dislikes 0

I'd like to see a transverse tensile test for hemp fibers, or a charpy. Just so we get apples to apples. Whats the AMS spec for hemp again?

4 years ago | Likes 2 Dislikes 0

Planes are not made of steel tho, they use Al 7071 stregth not being the only important characteristic for a plane, flexibility is more impo

4 years ago | Likes 9 Dislikes 1

Oh sure. I love carbon fibre. But the text in the image said "10x steel".

4 years ago | Likes 2 Dislikes 0

source?

4 years ago | Likes 3 Dislikes 0

I would start with matweb.

4 years ago | Likes 3 Dislikes 0

Thinnest fibers of hemp with the maximum tensile strength (4200 MPa) stronger thansteel variety with the highest tensile strength (3000 MPa)

4 years ago | Likes 153 Dislikes 3

Where did you get your numbers? You are way off from what Perrys lists for structural and hardened carbon steel.

4 years ago | Likes 3 Dislikes 0

Material strength is more than just tensile strength. Modulus of Elasticity is a better scale imo. And I bet raw hemp fibers are almost zero

4 years ago | Likes 12 Dislikes 0

The article says "hemp fiber composite" so think carbon fiber or fiberglass but with hemp instead

4 years ago | Likes 1 Dislikes 0

I doubt the strength by weight comparison includes the polymer binder.

4 years ago | Likes 1 Dislikes 0

This from a website that, if biased, will be biased in favour of hemp. It's a bit stronger than steel, but not 10x.

4 years ago | Likes 134 Dislikes 2

That strength is only in one direction, and only in tension. Outside of all the other factors that go into material selection for planes.

4 years ago | Likes 1 Dislikes 0

Carbon fiber is 7000 MPa, for reference.

4 years ago | Likes 35 Dislikes 0

Might be "strongest hemp vs weakest steel"

4 years ago | Likes 11 Dislikes 0

Also, tensile strength is great, but it's only one factor - steel's way stronger in most else

4 years ago | Likes 10 Dislikes 0

I appreciate you mentioned the possible bias of the website, not many do. Hats off to you sir

4 years ago | Likes 5 Dislikes 0

Thats cool and all but we don't make airplanes from steel.

4 years ago | Likes 117 Dislikes 1

Last time I heard jet fuel and steel together in a sentence, shit did go too well

4 years ago | Likes 4 Dislikes 0

That's what I was gonna say

4 years ago | Likes 33 Dislikes 1

I mean, the Mig-25 is mostly steel, but that's mostly an outlier.

4 years ago | Likes 17 Dislikes 0

4 years ago | Likes 14 Dislikes 0

All good points. I like seeing people learn new things from doubt rather than taking every image as gospel. ?

4 years ago | Likes 8 Dislikes 0

But you don't make airplanes out of low grade steel.

4 years ago | Likes 26 Dislikes 0

4 years ago | Likes 28 Dislikes 1

I stand corrected.

4 years ago | Likes 2 Dislikes 0

Oh I love this.

4 years ago | Likes 7 Dislikes 0

Comrade...

4 years ago | Likes 3 Dislikes 0

By killing the hemp industry a bunch of rich fucks could control lots of industries the most useful plant on earth would've dominated. 1/

4 years ago | Likes 39 Dislikes 8

(Oil, steel, textiles, paper, etc) So maybe it is, pound for pound. /2

4 years ago | Likes 17 Dislikes 5

The problem with these "x times stronger" statements is that materials have diffenent "strength" properties that exclude each other.

4 years ago | Likes 17 Dislikes 0

Yes, things like tensile strength, ductility, and brittleness all have to be taken into account when considering a material for construction

4 years ago | Likes 6 Dislikes 0

Hence why aluminum is used instead of steel... you need flex

4 years ago | Likes 4 Dislikes 0

I'm assuming you have more knowledge than me and therefore agree you're correct.

4 years ago | Likes 7 Dislikes 0

The most important ones being Tensile (resist being pulled apart), compressive (resist being crushed), and shear (resist being ripped paper

4 years ago | Likes 2 Dislikes 0

Sp there is some global conspiracy against hemp?

4 years ago | Likes 1 Dislikes 0

Is it a conspiracy if no one really conspired? There was a lot of lobbying during the early twentieth century to make it illegal.

4 years ago | Likes 3 Dislikes 0

Who was lobbying in my country? If it really was superior, do you really think no one would have used it already?

4 years ago | Likes 1 Dislikes 0

Especially introducing the word ‘marijuana’ along with racism into the matter. And shifting from telling people it would make you wild and

4 years ago | Likes 2 Dislikes 0