Comments on: The ability to fly lower means it won’t have to spend time climbing

By: Lucklucky

Lucklucky — Thu, 03 Aug 2023 04:25:54 +0000

It depends on speed. For example, an attack combat fighter jet has about 50% range at low level compared to its most economic altitude. There is more drag at low level.

By: VXXC

VXXC — Tue, 01 Aug 2023 15:24:44 +0000

I can predict with confidence that not much energy will be used in the climb, except perhaps of bank accounts, lawyers fees, possibly stock prices.

The entire thing isn’t GREEN unless you bless away the vast amounts of BROWN to make it GREEN, which doesn’t address the 2,000 tons of waste for every ton of REE refined, including 1 ton of radioactive uranium or thorium waste left over.

But not to worry, someday they’ll be posts on how the radioactive waste has been repurposed as [?], and, moreover, the future Princess Markle II can tour the world promising to clean up the glowing sludge leftover from GREEN.

This scam ends when humanity ends, I suppose.

By: David Foster

David Foster — Mon, 31 Jul 2023 21:27:24 +0000

“a range of around 250 nautical miles (with an additional 30 minutes for reserves”..but normal reserve requirement for Instrument Flight Rules flights is 45 minutes. Surely they aren’t planning to restrict operations to Visual Flight Rules…

By: TRX

TRX — Mon, 31 Jul 2023 01:49:26 +0000

Besides the need to have a grid drop of sufficient amperage, charging still takes time. Commercial vehicles only make money when they’re moving.

I wonder how long it would take to charge that 8-ton battery.

Also, batteries are generally temperature-sensitive. A few hours sitting on a sunny runway, and you can burn your hand touching the plane. At 30,000 feet the ambient temperature is -70F.

By: Chris J.

Chris J. — Sun, 30 Jul 2023 23:02:26 +0000

Now, where did I leave my 800V charging adapter…?

By: Bob Sykes

Bob Sykes — Sun, 30 Jul 2023 22:06:05 +0000

Batteries have only one-tenth the energy content of an equal weight of fossil fuel, and Davis is flat out lying about it. He is also lying about the cost to charge the battery; it will be many times the cost of the fossil fuel it replaces.

McChuck is right about the fuel burn. Planes get much lighter over their flight plans.

This whole electric business yet another scam.

By: Phil B

Phil B — Sun, 30 Jul 2023 21:10:18 +0000

The random in-flight barbecue is not be touted as one of the benefits of the lithium battery in the press release.

By: VXXC

VXXC — Sun, 30 Jul 2023 20:09:26 +0000

This is a very expensive way to advance basic research but here we are…

By: Jim

Jim — Sun, 30 Jul 2023 19:52:48 +0000

We’ll have room-temperature superconductors before we have lithium-ion batteries capable of supporting electric airplanes.

By: McChuck

McChuck — Sun, 30 Jul 2023 19:45:14 +0000

Every plane has “the ability to fly lower.”

Every plane can fly to an airport at 2:00 am.

Next-night air is, in fact, not faster than same-day air.

The 8,000 pound battery doesn’t get much lighter as you use it up, thus it doesn’t get more efficient in the latter half of the trip.

I bet they can’t fly lower than a truck or a locomotive!