The Drive article on Q1 2022 GR86 Sales

[Blighty]

Originally Posted by Dadhawk

There is work being done to create both electric and hydrogen based aircraft. Hydrogen makes the most sense to me, since you can turn around the plane about as quickly as with Jet A. Batteries in a plane (regardless of size of the plane) makes no sense to me, way too much weight to fly and in aviation every ounce counts against profit.

Hydrogen makes sense for a lot of reasons. Its biggest knock is that it is less energy efficient because it takes a lot of energy to create. The question is how difficult will it be to create clean energy in the future anyway - honestly there are so many ways to create energy I just simply don't think that is the issue.

[Sasquachulator]

Originally Posted by Dadhawk

There is work being done to create both electric and hydrogen based aircraft. Hydrogen makes the most sense to me, since you can turn around the plane about as quickly as with Jet A. Batteries in a plane (regardless of size of the plane) makes no sense to me, way too much weight to fly and in aviation every ounce counts against profit.

Battery electric planes aren't gonna be a thing beyond small private planes (that carry only like 9-12 passengers) because of the weight and range issue.

https://www.bbc.com/future/article/2...ne-ever-to-fly
https://theconversation.com/electric...problem-125900

According to the guy in the second article an airbus A380 could only travel over 1000kms (621miles) if it went full battery with current tech, and would need some 30x the weight of jet fuel in batteries if it were to travel its current 15000kms (9320miles) range. That would make it way too heavy to even get off the ground. The other thing is the plane gets lighter over time as the jet fuel is burned away, a battery will not as it drains.

A battery would need to be able to store a helluva lot more power and weigh a helluva lot less in order to make some short and all long haul flights work.

And imagine the amount of time it would need to recharge all those batteries......its gonna be hours....and i doubt the aviation industry can accept that with the amount of come and go planes do. They'd need a bunch of unused reserve planes waiting in the wings to replace the ones that touch down.

Alot of times its all "oh just do this and that, the tech is ready lets transition already!". But no one ever thinks about the processes involved (except the engineers that try to make it work) to make it a viable alternative.

It kind of makes me wonder how we can even reach these combustion ban goals (2030-2035) when we dont even have cars to sell RIGHT NOW. Alot of makes have stopped taking EV orders and now there are like 1+year waitlists. There is going to be like 2 or 3 years (or more) of wasted time before we can even get back to a normal timeline where any progress can even start being made.

[soundman98]

The point of government deadlines isn't to be met, but to spearhead innovation towards a specific goal.

Like getting a 10 year old to clean his room.

[Dadhawk]

Originally Posted by Blighty

Hydrogen makes sense for a lot of reasons. Its biggest knock is that it is less energy efficient because it takes a lot of energy to create. The question is how difficult will it be to create clean energy in the future anyway - honestly there are so many ways to create energy I just simply don't think that is the issue.

I don't know how much the energy density matters in larger aircraft. The big boys rarely fly with full fuel, they don't want to have to expend energy to fly fuel around. It's a trade-off that is likely possible except at the very extended range of the plane.

[Blighty]

Originally Posted by Dadhawk

I don't know how much the energy density matters in larger aircraft. The big boys rarely fly with full fuel, they don't want to have to expend energy to fly fuel around. It's a trade-off that is likely possible except at the very extended range of the plane.

I think you might of meant to quote @Sasquachulator.

But yeah I mean more than just aircraft and automobiles, industry and grids can use back-up hydrogen power generators that are clean and provide baseload power for when there are grid issues.

[Dadhawk]

Originally Posted by soundman98

The point of government deadlines isn't to be met, but to spearhead innovation towards a specific goal.

Like getting a 10 year old to clean his room.

Yea, the government can change (delete/extend) the artificial deadline as quickly as it made it in the first place. In fact, I'm not sure there has ever been a hard (not changed) deadline on any of these type rulings. Heck, even something like the analog to digital TV conversion was extended several times.