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Link Posted: 12/27/2021 12:54:33 PM EDT
[#1]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
So propfans are coming back?
View Quote



kinda!!!

https://en.airlinestravel.ro/embraer-presented-a-turboprop-concept-aircraft-with-engines-mounted-in-the-rear.html
Link Posted: 12/27/2021 12:54:54 PM EDT
[#2]
We did not stop using whale oil because we ran out of whales.
Link Posted: 12/27/2021 12:59:32 PM EDT
[#3]
I'm not endorsing whatever paper OP saw, but on a macro level, he is not wrong.

As someone who works as an engineering manager in powertrain systems (both petrol and electric), I can confirm that he push towards EVs is very real and very nefarious and should absolutely scare the shit out of every one of us.
Link Posted: 12/27/2021 1:19:27 PM EDT
[#4]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
United airlines, electric turboprop aircraft

New aircraft engines by GE, props

I dont know what to say guys.  I've got nothing to gain by lying about this.  I understand the denial.
View Quote


An "electric turboprop", that they are hoping will be able to make 250 mile flights within a decade?  Talk about clickbait for the technologically challenged (and it worked on OP, apparently).  When they are making up terms that don't actually apply to the items they are talking about, it's definitely bullshit.

"New engines" from GE, which happen to be engines that they experimented with decades ago, then abandoned in favor of the development path that led to the current generation of quiet, fuel efficient engines.  The "quiet" part is rather important, because the environmentalists aren't just concerned about exhaust emissions in aviation, but also "noise pollution", with the final nail in the coffin of many old turbojet engines being an inability to comply with airport noise restrictions.

We need a thread rating of 'not just troll, but ignorant troll'.
Link Posted: 12/27/2021 1:20:32 PM EDT
[#5]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Corrupt people with polysci degrees going into politics and making decisions on issues that can't possibly understand is NOT a formula for success.
View Quote


But that is actually the model for the current administration in the White House.
Link Posted: 12/27/2021 1:21:03 PM EDT
[#6]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


I like how you added the "most will reject it" for extra truthiness.
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He really should added, "Read it before Big Tech takes it down" then included a link to a fundraiser or product he's pushing
Link Posted: 12/27/2021 1:30:05 PM EDT
[#7]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
I feel dumber for having read OP. Referencing a Kia tech? LOL, okay.
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You know how they like to obscure stuff, by taking something that is being said and piling crazy conspiracy stuff on top of it, making it more likely that the original, non-conspiracy stuff will be dismissed as crazy conspiracy stuff?

The left is actually pushing to eliminate internal combustion engines, in favor of electric vehicle technology that currently only works on a limited scale.  It will cause all sorts of problems when they force it's implementation (such as how California has aggravated supply chain issues by prohibiting trucks over a certain age being used to haul goods from the ports in California).  The stuff OP is pushing, is the crazy stuff that will help convince the general public that attempts to point out the failures of leftist energy policies, are nothing but more right-wing conspiracies.
Link Posted: 12/27/2021 1:32:16 PM EDT
[#8]
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Quoted:
This lost all credibility at ‘turbo prop.’
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Bingo
Link Posted: 12/27/2021 1:36:40 PM EDT
[#9]
North Korea beat us to it


Link Posted: 12/27/2021 1:39:10 PM EDT
[#10]
Discussion ForumsJump to Quoted PostQuote History
Quoted:



He really should added, "Read it before Big Tech takes it down" then included a link to a fundraiser or product he's pushing
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Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:


I like how you added the "most will reject it" for extra truthiness.



He really should added, "Read it before Big Tech takes it down" then included a link to a fundraiser or product he's pushing


The 'read it before big tech takes it down' is implied by his claims of difficulty in being able to find the report he previously read.

The fundraiser or product could still be introduced later in the thread, after his 'most will reject it' claim is hit out of the park by numerous posts pointing out the technical ignorance in his claims.
Link Posted: 12/27/2021 1:40:21 PM EDT
[#11]
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Quoted:
So propfans are coming back?
View Quote

Propfans sucked.

It makes much more sense to enclose them in a duct like the GE90.

Link Posted: 12/27/2021 1:44:43 PM EDT
[#12]
They don't want to put us all in EVs or prop planes.

They want to put us at home in our tiny urban apartment, waiting for a train.

We've figured out more than enough tech to fix real transportation problems.  The elites don't want them fixed.  They hate our mobility.
Link Posted: 12/27/2021 1:46:03 PM EDT
[#13]
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Quoted:
In on 1, I predict a lock before page 10.
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3 time outs
1 ban
10 pmags
Link Posted: 12/27/2021 1:46:34 PM EDT
[#14]
Discussion ForumsJump to Quoted PostQuote History


Thousand horsepower radial engine with a four blade prop, tied to an airframe that prevents that engine and prop from being able to do much better than 100mph.  With the whole thing being designed with the "it must be capable of being repaired in any farmer's tractor shop" philosophy as a cornerstone of the design, because the obvious outcome of the government's policies, is to set our society back several decades, if not a century.
Link Posted: 12/27/2021 1:50:54 PM EDT
[#15]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


The 'read it before big tech takes it down' is implied by his claims of difficulty in being able to find the report he previously read.

The fundraiser or product could still be introduced later in the thread, after his 'most will reject it' claim is hit out of the park by numerous posts pointing out the technical ignorance in his claims.
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Yeah but that's not how Clickbait forward fear porn works.
Link Posted: 12/27/2021 2:08:36 PM EDT
[#16]
A Boeing 737 with 200 passengers, burns 4 gallons per hour per passenger.

Cheap.

A turbo prop will likely double that and carry half the passengers.

The problem with commercial jet airlines, is the amount of CO2 released in the upper atmosphere.

Big brother wants you to think it's your car thats the primary cause for warming the world.

"World ain't what it seems is it, Gunny? You keep that in mind. The moment you think you got it figured, you're wrong"
Link Posted: 12/27/2021 2:15:54 PM EDT
[#17]
Link Posted: 12/27/2021 2:17:10 PM EDT
[#18]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


The problem with commercial jet airlines, is the amount of CO2 released in the upper atmosphere.

View Quote


Fail.
Link Posted: 12/27/2021 2:17:10 PM EDT
[#19]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Turbo prop aircraft 2022

US buys turbo prop attack aircraft

Turbo props, the future of aircraft


Seriously guys.  How much proof do you need.  Your ICE truck is gonna be a paper weight in 5 years.
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The last link is about short haul airlines.

Turboprop light attack aircraft make sense because they are not high altitude fighters.

Embraer is in the short haul business.


You are not listening / reading what’s being posted.

Link Posted: 12/27/2021 2:17:57 PM EDT
[#20]
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Quoted:
Behold a pale horse…although the red horse seemed more badass.
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@KILLERB6

Behold a white Prius.
Link Posted: 12/27/2021 2:36:06 PM EDT
[#21]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Corrupt people with polysci degrees going into politics and making decisions on issues that can't possibly understand is NOT a formula for success.
View Quote

Attachment Attached File


Indeed. Not our best and brightest. That background is more akin to gettin a degree in “party apparatchik”.
Link Posted: 12/27/2021 2:37:42 PM EDT
[#22]
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Quoted:


Fail.
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Quoted:
Quoted:


The problem with commercial jet airlines, is the amount of CO2 released in the upper atmosphere.



Fail.
Sure about that? Hey, if I'm wrong please correct me.

Aviation fuel releases 3.15g of CO2 per g of fuel.

There's quite a few planes in the air simultaneously.
Link Posted: 12/27/2021 2:37:48 PM EDT
[#23]
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Quoted:
You guys want to know why there's a sudden big push for EV while at the same time eliminating as many fossil fuels as possible? Control and profit.
That's all it comes down to. ICE vehicles are ubiquitous and offer a level of freedom never before seen in human history.

Well they found a new shell game to shift control and profits back into their pockets (by "their" I meant the pols and mega corps/billionaires)
Very few places/companies have the access to the materials required for EV's. (1st point of control) Electricity rates will become sky high to fuel said EV's (2nd point of control)
"they" will basically be able to control who gets access to the vehicles and unicorn piss to fuel them. With EV being the only "authorized" form of pov's in the near future, here comes the billions and trillions in profit.
Couple all that with a convenient bioweapon, and fearmongering by the msm and pols, and you have a bunch of people geographically separated and easier to control, and then impose more draconian measures.

I'd say things are going according to plan swimmingly for them.
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Exactly. They couldn’t enact cap and trade, So they moved on to a scheme of energy production that is already controlled by government.
Link Posted: 12/27/2021 2:38:49 PM EDT
[#24]
This thread is full of ad hominems.  It would useful to provide some data refuting OP's claims.  Instead, it's 5 pages of insulting him.

It appears that Mexico is also past peak production.

https://tradingeconomics.com/mexico/crude-oil-production

That's at least one data point supporting the information in OP.  Of course, we are talking about worldwide trends, not Mexico.

An export ban in the US would also support OP, but it appears that there is none planned:

https://www.worldoil.com/news/2021/12/14/us-energy-secretary-says-an-oil-export-ban-is-not-in-the-works

I couldn't find a good chart on world crude production over the long term, but here's a short-term one:
https://www.eia.gov/outlooks/steo/report/global_oil.php

It appears to cut against OP as well.

The classic argument for peak oil is not that reserves are running out, just that the easy-to-access ones are.  Among the "oil doomers" it's known as "peak cheap oil."

I don't know, OP, whether what you've presented is true, but I'm glad you tried to start a discussion.
Link Posted: 12/27/2021 2:41:33 PM EDT
[#25]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


The last link is about short haul airlines.

Turboprop light attack aircraft make sense because they are not high altitude fighters.

Embraer is in the short haul business.


You are not listening / reading what's being posted.

View Quote
We are listening.

However, jet engines aren't going away. Big semi trucks aren't going away from being an ICE for quite sometime.

Airports are packed now, 2 or 3 times the planes to move the same number of people, 2 to 3 times the congestion in the air.


Link Posted: 12/27/2021 2:47:33 PM EDT
[#26]
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Quoted:


Fail.
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Quoted:
Quoted:


The problem with commercial jet airlines, is the amount of CO2 released in the upper atmosphere.



Fail.


Two or three decades ago, there was a small amount of noise about a study claiming that sulfur dioxide in the exhaust of high altitude turbines was contributing to an increase in cloud cover.  I thought it sounded like an offshoot of the chemtrails nonsense, and asked a meteorology professor who, at the time, was active on talk.politics.guns for his opinion.  He said he had seen the news article that had gotten my attention and was interested due to having seen similar indications of sulfur dioxide from volcanic eruptions having an impact on cloud cover, but that he was surprised that people were talking about sulfur in aircraft exhaust gases, since he hadn't previously seen any mention of it.

Since then, I've only seen the initial news report about the study, and one aviation industry article bringing up the topic, so it's likely something that science supports as technically valid, but has so little impact that even the tree huggers can't point to questionable studies claiming to have measured a change.
Link Posted: 12/27/2021 2:48:07 PM EDT
[#27]
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Quoted:
Whether you’re right or not, the undeniable truth is we are on a path that ends with very few options.  And when people have less options, they tend to get violent.
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Agreed




There will be a push from those who believe they run everything in this world. Then, they’ll hit a wall of resistance. Reality will set in, and then we will return to “normalcy”. What happens in between the resistance and normalcy, it won’t be good. If you look at the things that have been happening globally, a whole lot of people have stopped giving a fuck and are starting to adopt the “Fuck around and find out” mentality.
Link Posted: 12/27/2021 2:50:46 PM EDT
[#28]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Sure about that? Hey, if I'm wrong please correct me.

Aviation fuel releases 3.15g of CO2 per g of fuel.

There's quite a few planes in the air simultaneously.
View Quote


The failure is accepting the nonsense that humanity could put enough carbon dioxide into the atmosphere to actually warm the planet even if we tried.
Link Posted: 12/27/2021 2:51:40 PM EDT
[#29]
Discussion ForumsJump to Quoted PostQuote History
Quoted:

Big semi trucks aren't going away from being an ICE for quite sometime.
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Discussion ForumsJump to Quoted PostQuote History
Quoted:

Big semi trucks aren't going away from being an ICE for quite sometime.


California seems to disagree with you.


Airports are packed now, 2 or 3 times the planes to move the same number of people, 2 to 3 times the congestion in the air.




How easily and rapidly that can be changed, was demonstrated in September of 2001, and again in 2020.
Link Posted: 12/27/2021 2:52:08 PM EDT
[#30]
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Quoted:
I need Cliff's Notes from someone other than the OP.
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FWD: FWD: FWD: FWD:
Link Posted: 12/27/2021 2:56:50 PM EDT
[#31]
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Quoted:

FWD: FWD: FWD: FWD:
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Fucking boomers.   Someone "accidentally" sent it to him

Lol

I KNOW WHAT I HAVE

I'm dying
Link Posted: 12/27/2021 3:00:20 PM EDT
[#32]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
United airlines, electric turboprop aircraft

New aircraft engines by GE, props

I dont know what to say guys.  I've got nothing to gain by lying about this.  I understand the denial.
View Quote



fuck.  get some help man
Link Posted: 12/27/2021 3:01:40 PM EDT
[#33]
Discussion ForumsJump to Quoted PostQuote History
Quoted:

Then you can travel half the distance of a charge or your vehicle is stuck somewhere without the ability to charge it.


You can carry 1000 miles+ of travel in the back of an SUV in Gerry cans weighing 400 pounds. Gas or diesel lasts a year in storage do charged batteries hold charge for a year of storage?

If you need gas in an area with no electricity you can use a length of hose to get it from the storage tanks of any gas station. Can you get a charge if there is no generators running?

Can you carry 1000+ miles of batteries?
View Quote


So in your hypothetical situation, I'm not allowed to buy electricity and I'm not allowed to carry around a nice heavy 8 gauge Nema 6-50 extension cord... but I AM allowed to buy gasoline and carry around a siphon hose.

Because reasons.   Do I have that about right?
Link Posted: 12/27/2021 3:07:27 PM EDT
[#34]
We use sythetics for car oil, and we can already make gasoline from animal corpse, its not being used because big oul is profitable. Its like we have solar power, but people still build new houses with electricity, why? Because money.
Link Posted: 12/27/2021 3:08:06 PM EDT
[#35]
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Quoted:


You can store gas. You can’t store electricity.

If they shut down the supply of gas, there is still enough stored for people to do the needful.

They shut off electricity and all you have is what is in the batteries of your car and your range of travel is half a charge even if you have solar generators.

Everyone has gas very few have sufficient solar generators. And even if they do, they can’t travel far.
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You sound like someone who has never actually tried to store gasoline for an extended period of time.

Gasoline does not store well for shit.   Diesel is only a bit better.   But even then, you have to take pains to keep algae from growing in it.
Link Posted: 12/27/2021 3:13:49 PM EDT
[#36]
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Quoted:
One of our many hens made breakfast Christmas day this year.

She is the only indoor hen, she lays a egg and goes back in her cage.

https://www.ar15.com/media/mediaFiles/20856/E68FB0E8-F9B4-4BF5-AB6C-BF5A12CA1CD3-2215143.jpg

Her eggs

https://www.ar15.com/media/mediaFiles/20856/E664117D-E070-4425-85AE-B9F224EF8080-2215145.jpg
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Quoted:

I keep warning people that shit goes sideways when the average person cannot feed their family.
One of our many hens made breakfast Christmas day this year.

She is the only indoor hen, she lays a egg and goes back in her cage.

https://www.ar15.com/media/mediaFiles/20856/E68FB0E8-F9B4-4BF5-AB6C-BF5A12CA1CD3-2215143.jpg

Her eggs

https://www.ar15.com/media/mediaFiles/20856/E664117D-E070-4425-85AE-B9F224EF8080-2215145.jpg

You will survive.

I will not.
Link Posted: 12/27/2021 3:14:29 PM EDT
[#37]
Sounds like self-fulfilling, wet dream fantasy fanfic written up by an org of eccentric policy quacks. They call all FOAD. I live with -50F winters and need a combustion engine. I'm not driving an electric Chinese Prius clone because a pants-shitting potato pedophile is told to tell me too.
Link Posted: 12/27/2021 3:23:26 PM EDT
[#38]
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Quoted:
Its like we have solar power, but people still build new houses with electricity, why? Because money.
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Actually, it's a variety of reasons, with two of the bigger ones being the amount of inertia that the housing industry has to keep doing what they are already doing (building codes are just one aspect of this), and homeowners that have gotten the mindset that they have to have a certain style of house, regardless of whether or not that style of house fits their local climate, because "there's this thing called air conditioning".

There's all sorts of fun to be had with leftists on this topic, if you can lure them into branding you as just another knuckle dragging conservative that doesn't care about the environment, while they virtue signal about their Prius and the new energy efficient windows they had installed on their house.  They never seem to understand how little they actually know about 'the three Rs' - "Reuse, Repurpose, and Recycle" (there's a reason that recycling is the third option of those three).
Link Posted: 12/27/2021 3:37:20 PM EDT
[#39]
Link Posted: 12/27/2021 3:40:54 PM EDT
[#40]
So the jets are out, and the future of air travel is... only fans?

Better do a web search for only fans....
Link Posted: 12/27/2021 3:42:14 PM EDT
[#41]
They can just put solar panels on top of airplane wings to power them, problem solved.
Link Posted: 12/27/2021 3:46:26 PM EDT
[#42]
Discussion ForumsJump to Quoted PostQuote History
Quoted:



You sound like someone who has never actually tried to store gasoline for an extended period of time.

Gasoline does not store well for shit.   Diesel is only a bit better.   But even then, you have to take pains to keep algae from growing in it.
View Quote

Gas will store for a couple of years in good containers without ethanol in my experience.
Link Posted: 12/27/2021 3:47:06 PM EDT
[#43]
My thought process has always been that we bleed the rest of the world dry and then open up government controlled areas of the US as a last resort. I'd rather pay more and deny energy resources from our enemies.
Link Posted: 12/27/2021 3:57:42 PM EDT
[#44]
Discussion ForumsJump to Quoted PostQuote History
Quoted:

You sound like someone who has never actually tried to store gasoline for an extended period of time.

Gasoline does not store well for shit.   Diesel is only a bit better.   But even then, you have to take pains to keep algae from growing in it.
View Quote


For what it's worth, I think most Honda generator owners would agree that they are notorious for being fickle about the gas used.
I have a Honda ES6500 (no longer made) that I bought new more than 20 years ago.
I filled the tank with Casey's ethanol free gasoline on the day it arrived.  
I have only used it a handful of times, and have never added any gas since the day it arrived.
AND, I make sure I shut off the gas valve and let the engine run until it dies.  
I started it up last year after the wind storm that devastated Iowa, and it ran just fine on 20 year old gasoline.  
I am convinced the only storage issues with gasoline is ethanol blends.


Link Posted: 12/27/2021 4:02:10 PM EDT
[#45]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


So in your hypothetical situation, I'm not allowed to buy electricity and I'm not allowed to carry around a nice heavy 8 gauge Nema 6-50 extension cord... but I AM allowed to buy gasoline and carry around a siphon hose.

Because reasons.   Do I have that about right?
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:

Then you can travel half the distance of a charge or your vehicle is stuck somewhere without the ability to charge it.


You can carry 1000 miles+ of travel in the back of an SUV in Gerry cans weighing 400 pounds. Gas or diesel lasts a year in storage do charged batteries hold charge for a year of storage?

If you need gas in an area with no electricity you can use a length of hose to get it from the storage tanks of any gas station. Can you get a charge if there is no generators running?

Can you carry 1000+ miles of batteries?


So in your hypothetical situation, I'm not allowed to buy electricity and I'm not allowed to carry around a nice heavy 8 gauge Nema 6-50 extension cord... but I AM allowed to buy gasoline and carry around a siphon hose.

Because reasons.   Do I have that about right?


That's in every one of these EV threads, usually by more than one person.  They're convinced the gov will cut off electricity to tens of millions of homes, starving and putting out of work millions of families but for some reason won't or can't ration gas and diesel, which was easily done with 1930s technology.
Link Posted: 12/27/2021 4:07:07 PM EDT
[#46]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


For what it's worth, I think most Honda generator owners would agree that they are notorious for being fickle about the gas used.
I have a Honda ES6500 (no longer made) that I bought new more than 20 years ago.
I filled the tank with Casey's ethanol free gasoline on the day it arrived.  
I have only used it a handful of times, and have never added any gas since the day it arrived.
AND, I make sure I shut off the gas valve and let the engine run until it dies.  
I started it up last year after the wind storm that devastated Iowa, and it ran just fine on 20 year old gasoline.  
I am convinced the only storage issues with gasoline is ethanol blends.


View Quote



Ethanol is definitely not kind to gasoline powered devices, especially for storage purposes.

But yeah, specific cases will make for specific outcomes.   I wouldn't try to run modern cars on really old, stale gas.   Not unless it was an emergency.
Link Posted: 12/27/2021 4:16:13 PM EDT
[#47]
Hardly any turbo jets still in use today.  

Turbo prop, turbo jet, and turbo fan engines all use the same fuel (Jet A or a similar derivative, but for the sake of this thread they all use the same type of fuel).

Turbo fans are way more efficient than turbo props or turbo jets.  The cost to "force" the fleet to convert to turbo props would be astronomical.  And they would use way more fuel than turbo fans.
Link Posted: 12/27/2021 4:23:01 PM EDT
[#48]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


Two or three decades ago, there was a small amount of noise about a study claiming that sulfur dioxide in the exhaust of high altitude turbines was contributing to an increase in cloud cover.  I thought it sounded like an offshoot of the chemtrails nonsense, and asked a meteorology professor who, at the time, was active on talk.politics.guns for his opinion.  He said he had seen the news article that had gotten my attention and was interested due to having seen similar indications of sulfur dioxide from volcanic eruptions having an impact on cloud cover, but that he was surprised that people were talking about sulfur in aircraft exhaust gases, since he hadn't previously seen any mention of it.

Since then, I've only seen the initial news report about the study, and one aviation industry article bringing up the topic, so it's likely something that science supports as technically valid, but has so little impact that even the tree huggers can't point to questionable studies claiming to have measured a change.
View Quote


Remember when “acid rain” got all the attention in the early to mid 1980’s?

It seems like we get some new environmental boogey-man to worry about every decade.

Anywhooo… I figured I would google “how much sulfur is in jet fuel?”

Attachment Attached File


Link Posted: 12/27/2021 4:30:00 PM EDT
[#49]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
In the 1970's when I was in school we were being taught about the upcoming ice age and that the world would run out of fossil fuels in the 80's . Is this finally happening?
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Tower of Power  preached this in 1975. Awesome tune BTW>

Tower of Power - Only So Much Oil In The Ground - (Urban Renewal - 1975)
Link Posted: 12/27/2021 4:39:52 PM EDT
[#50]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


Remember when “acid rain” got all the attention in the early to mid 1980’s?

It seems like we get some new environmental boogey-man to worry about every decade.

Anywhooo… I figured I would google “how much sulfur is in jet fuel?”

https://www.ar15.com/media/mediaFiles/369122/7A170D25-0207-4269-BF16-7E835066322A_png-2218729.JPG

View Quote View All Quotes
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Quoted:
Quoted:


Two or three decades ago, there was a small amount of noise about a study claiming that sulfur dioxide in the exhaust of high altitude turbines was contributing to an increase in cloud cover.  I thought it sounded like an offshoot of the chemtrails nonsense, and asked a meteorology professor who, at the time, was active on talk.politics.guns for his opinion.  He said he had seen the news article that had gotten my attention and was interested due to having seen similar indications of sulfur dioxide from volcanic eruptions having an impact on cloud cover, but that he was surprised that people were talking about sulfur in aircraft exhaust gases, since he hadn't previously seen any mention of it.

Since then, I've only seen the initial news report about the study, and one aviation industry article bringing up the topic, so it's likely something that science supports as technically valid, but has so little impact that even the tree huggers can't point to questionable studies claiming to have measured a change.


Remember when “acid rain” got all the attention in the early to mid 1980’s?

It seems like we get some new environmental boogey-man to worry about every decade.

Anywhooo… I figured I would google “how much sulfur is in jet fuel?”

https://www.ar15.com/media/mediaFiles/369122/7A170D25-0207-4269-BF16-7E835066322A_png-2218729.JPG



Yep, the meteorology professor was surprised that there was any sulfur in the fuel.  As I recall, looking for indications of sulfur deposits on the 'hot' components in the engine, is part of the checklist for a Hot Section Inspection (but it's been ages since I got that far into taking a turbine engine apart).  Such deposits would have built up over an extended period of the engine running (thousands of hours of engine operation, between Hot Section Inspections).

The theory of the study was that the sulfur in the exhaust would react with the water molecules that formed the contrails, creating compounds that would cause the contrails to linger in the air and not disperse as quickly as the simple ice crystals that normally make the contrails, with overlapping contrails (containing these compounds) contributing to the formation of clouds that would linger longer than normal clouds that did not have these compounds, resulting in an increase in the cloud cover (and changing the climate).

Seemed to be at least a touch of the "a butterfly farting in Bolivia, has an impact on the winds in Oklahoma" reasoning in their theory.
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