![](/static/253f0d9b/assets/icons/icon-96x96.png)
![](https://lemmy.ml/pictrs/image/d3d059e3-fa3d-45af-ac93-ac894beba378.png)
Under because that way you can model it by making a cylinder and adding a plane to it, because the plane is attached to the back you don’t have to do the extra work of making sure the textures line up.
There is no record of this bio
Under because that way you can model it by making a cylinder and adding a plane to it, because the plane is attached to the back you don’t have to do the extra work of making sure the textures line up.
You actually can run the engines in reverse. They have thrust reversers. There’s very good reasons that they do not reverse the plane from the stand using the engines, but it is possible.
Her plane is worse than most. Its one of the last trijets in production. Planes with a small number of large engines are more efficient than planes with many small engines, which is why modern planes are all twinjets with wide high-bypass engines.
Airlines care about fuel efficiency. A minor reduction in fuel burn results in increased profits, and they operate large fleets. A small increase in efficiency across an entire fleet is huge. If you own a private jet, you are spending huge amounts of money to have one, the cost of fuel would only be a minor concern.
The solution to private jets is regulation. Private jets don’t need to exist. They don’t need to be replaced by another kind of airplane. The solution is to replace all planes on overland routes with electrified rail. Let the rich buy private railcars for transport.
I’m not skeptical on the concept of small aircraft. I wanted to give context because very few people will picture bush planes and puddle jumpers from the mention of “commercial aviation.”
PS: My calculations for fuel burn were based on comparing the range to the fuel capacity. Those are the numbers I have ready access. Planes are much less efficient when the tanks are full, and swift’s plane has a longer range, so it’s probably not quite as bad as my calculations indicate on comparable flights.
The carbon comes from the fuel. Burning a ton of jet fuel will release the same amount of carbon regardless of the plane that burns it.
Taylor Swift’s plane is a Dassault Falcon 7X. It weighs around 17 tons and seats 12 to 16 passengers.
Her plane burns 60% less fuel than a 737 MAX 8. However, her plane holds 9% of the passengers of the MAX 8, so its far less efficient per passenger than typical commercial aircraft.
Private planes are not a huge contributor to carbon emissions in comparison to others. They’re bad, obviously. But there are far more commercial airplanes, and they fly much more frequently than private jets.
Private jets get people’s attention. One person being directly responsible for that much carbon is notable is unconscionable. But it’s the scale of transportation overall that is the issue.
I got the number from wikipedia. Following the references, the number came from a BP datasheet about Jet A-1, where it is listed on a typical properties table, and the number is the net specific energy, which means it accounts for the inefficiency of the engines. Or at least that’s my assumption.
All the weights listed were operating empty weight. The battery planes will be even smaller than the planes I listed for comparison.
Weights of planes vary in flight, so I picked the one that disadvantages the point I’m trying to make in the interest of fairness.
Trains don’t need to store the energy at all. Pantographs are a mature technology. High speed renewable long haul transportation is a technologically solved problem for all overland routes, it just requires infrastructure investment.
The plane in the article is a 4 ton airplane, they mention plans to make an 8 ton commercial aircraft.
The Learjet 31 is 4.4 tons. It seats 8 passengers. The Cessna CitationJet CJ3+ is right around 4 tons with a maximum of 9 passengers.
The future 8 ton aircraft is around the size of the 10-ton Dash 8 Q200 with a maximum of 40 seats.
There are commercial uses for aircraft this small, but these jets are significantly smaller than most commercial aircraft.
For context jet fuel is around 9,720 Wh/L. However, energy density(energy per volume) is less important in aviation than specific energy(energy per mass) as weight is far more likely to be the limiting factor.
A standard lithium ion battery has 100-265 Wh/kg
The article claims 500 Wh/kg in this new battery.
Jet fuel has around 12,000 Wh/kg.
Though this is a major improvement in battery tech, batteries are unlikely to ever improve to the point to even approach the energy storage of liquid fuels.
Batteries cannot run commercial aviation as it currently exists. Battery planes will need to fly slower and shorter. There is no other way.
Vandalizing cybertrucks before delivery is cool. Laws are not the arbitor of coolness.
If the us supported the two state solution, they wouldn’t have vetoed Palestine’s UN membership.
I hate that this article doesn’t explain or show the language at all. You have to follow the twitter link which isn’t labeled as a link to the language at issue.
No strike/lockout clauses are a standard thing in union contracts in the US. This isn’t that it is much worse.
I’m unhappy that after an update gdm has a logo of the distro I’m using. I don’t want people to be able to see what distro it is, that way I don’t get the fun of telling everyone that I use arch btw.
No other issues.
deleted by creator
They use a cold silicon gel that sets from your body heat to make the molds. It is an interesting expierence having a cold viscous gel squeezed into your ears.
Did the USD deflate significantly between 2012 and 2016? Your gold based metric says yes.
The US is saying 3.4% because inflation is based on a consumer price index. It’s not a good metric because it doesn’t account for housing, education, healthcare and most other major expenses.
However, gold is an awful metric for the value of the currency. No single product can be a good metric alone. And gold is famously effected by speculation. People buy gold when the future of the currency seems uncertain.
Let me guess, you’re using unlock origin?
everyone who disagrees with me is russian or chinese
I bought an old business monochrome laser printer ten years ago. Still hasn’t needed a new toner cartridge.