New British built trainer, the Swift, central to the RAF’s green agenda.
Certainly the plan for a lot of the high duty cycle e-VTOLs. However, there's a lot of cash tied up in batteries and if your duty cycle can get away with not doing it, you're*probably* better off going for fast charging given how advanced car tech has become on that front. Example - if you can afford 20min between sorties you could probably take on 55ish kWh of juice if you're matching car speeds. Given that Pipistrel's battery is only 25ish kWh capacity in the first place (noting charging speeds won't be optimised against that pack size) you can see how you might skip the swap and go for a charge instead.
The following users liked this post:
if the batteries catch fire through thermal runaway, there is only one boldface drill. Try hard to get out. Really hard. I do hope a BRS will not be used to mitigate away occupant parachutes.
Mostly batteries are not removable as they're built in to wing and nose spaces in most electric designs at this scale. There may be requirements around thermal cycling and the number of fast charges that can be carried out over the life of the battery.
If you wanted removable batteries you'd put them in pods or panniers, not within the aircraft.
Mostly batteries are not removable as they're built in to wing and nose spaces in most electric designs at this scale. There may be requirements around thermal cycling and the number of fast charges that can be carried out over the life of the battery.
If you wanted removable batteries you'd put them in pods or panniers, not within the aircraft.
The following users liked this post:
Battery packs
Having seen a small Li Ion pack on fire I'd like an electric aircraft to have jettison able batteries - so a drop tank style thing to get it away from you whilst maintaining CG.
The fires are ferocious -
The fires are ferocious -
The following users liked this post:
CG
I've been wondering about this too, since the Ethiopian 787s with battery fires damaging the fuselage and more recently fires on electric cars. As for the e-bikes and scooters which are burning down houses ...
https://www.google.com/url?sa=t&sour..._MswQqe8pU_WGu
Are electric car fires really that common? - The Car Expert
The following users liked this post:
Of course AVGAS burns pretty well too! As this chap found out when his light aircraft in Florida caught fire in flight.
https://www.ladbible.com/community/i...-body-20210517
https://www.ladbible.com/community/i...-body-20210517
This battery powered utopia is pie-in-the-sky, and the most likely eventual outcome is a population scavenging around in the dirt for food scaps, surrounded by toxic piles of expensive, unuseable electronic junk. And all because there isnt enough electricty generation to run, or charge, any of it, never mind manufacture anything vaguely useful. You'll have to harness your children to a plough just to attempt growing a few vegetables. 🙄
The following users liked this post:
An airfield could be a giant solar panel farm, of course. Might discourage the birds too...
I'd like to know where all this electricity is going to come from? The UK doesn't have energy security now, and no realistic, believable plan to create it. There is just this lemming-like mentality that expects everyone will buy electric cars (and where is the infrastructure, never mind the energy, for them?), and other assorted green nonsense, when as it is, there is barely enough electricity generation to cover lighting, computers, phones, tablets, the millions of other battery powered items, the Cloud, Bitcoin, blah-flipping-blah.
This battery powered utopia is pie-in-the-sky, and the most likely eventual outcome is a population scavenging around in the dirt for food scaps, surrounded by toxic piles of expensive, unuseable electronic junk. And all because there isnt enough electricty generation to run, or charge, any of it, never mind manufacture anything vaguely useful. You'll have to harness your children to a plough just to attempt growing a few vegetables. 🙄
This battery powered utopia is pie-in-the-sky, and the most likely eventual outcome is a population scavenging around in the dirt for food scaps, surrounded by toxic piles of expensive, unuseable electronic junk. And all because there isnt enough electricty generation to run, or charge, any of it, never mind manufacture anything vaguely useful. You'll have to harness your children to a plough just to attempt growing a few vegetables. 🙄
National Grid FAQ
The following 3 users liked this post by PPRuNeUser0211:
Let me help you with that.
A cold, cloudless winter night followed by a windless day (standard high pressure scenario) means no wind power and very little solar - the UK hasn't invested in tidal power so where in fact is the electricity going to come from?
When you factor in how few charging points there are and how many houses have only on-street parking, there is nothing like the required infrastructure in UK to support full EV ownership at all.
As the report states "Even if we all switched to EVs overnight, we believe demand would only increase by around 10%. So we’d still be using less power as a nation than we did in 2002"
We believe........ in other words, they don't actually know, it's a guess
We believe........ in other words, they don't actually know, it's a guess
The demand would stay low simply because there aren't enough charging points.
Isn't there a thread on JB where you can park the EV debate and we can get back to talking about aeroplanes?
The following 2 users liked this post by Ninthace:
No one has ever laid out how your can charge all the vehicles owned by people in a multi storey block of flats for example
The following 2 users liked this post by PPRuNeUser0211:
Thread Starter
Join Date: Feb 2006
Location: Hanging off the end of a thread
Posts: 33,047
Received 2,920 Likes
on
1,249 Posts
I’d hate to think what jettisoning a battery pack would do to the C of G and along with the chute operation, I also wouldn’t fancy a burning Li Ion battery dropping out of the sky.