OT All electric fighter plane.

That's gotta hurt, Dave. :)

I have explained to you exactly what works and what does not.

You have at best about an hours duration in an electric plane and almost no ability to carry a payload.

Electric planes are therefore finding a useful niche market in flying clubs and for pilot training where an hour is all you need and the lack of maintenance inherent in them makes them very cost effective.

They cant operate effectively as anything beyond short range however for reason I gave.

No, I have been designing electric planes for many years and still do. They fact that they fly vindicates the calculations.

Date numbers?

Correct

I have a dozen that work very well. But they wont fly the Atlantic.

They wont even fly the channel.

On Wednesday, April 8, 2020 at 7:37:32 PM UTC+1, The Natural Philosopher

Looks like something went wrong then, somewhere along the line,

michael adams

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On Wednesday, April 8, 2020 at 7:31:10 PM UTC+1, The Natural Philosopher

He was on about the Merlin me thinks.

Thatcher would have regarded him as a failure.

To be fair, I think he was talking about the ones *he's* been building for the last 15 or 20 years.

All launched from a catapult. Did you notice all the calculations involving catapults in his long explanation ?

Which just about make it over the fence, and land head first into next-doors garden.

michael adams

....

Me thinks many here do not know what they are talking about:

Graphene batteries:

I achieved what I wanted to achieve. You will never achieve anything.

His son lived just across the road from us for a time/

Well no, he said the last version of te spitfire used a merlin. 37 litres and twin superchargers you said. That was a griffon

So you are both in fact wrong. So no news there then.

Mine are a lot smaller than that.

I am not allowed to fly them across the channel

More puff. Doesn't exist does it?

Hasn't yet actually flown has it? and 650 miles range means its effective safe range with a payload will be about 200 miles.

And the video makes the point that we need better batteries. And that is my point. There cant be that much better batteries - we are close to the theoretical limits already.

I have been living with the limits of electric flight for far longer than you have been out of nappies. I know all the problems and all te benefits. Throw a magic battery ten times better than existing ones in and a transatlantic dreamliner with ducted fans power by electric motors is less than a decade away. But there is no such battery.

On Wednesday, 8 April 2020 19:57:26 UTC+1, michael adams wrote: n Wednesday, April 8, 2020 at 7:37:32 PM UTC+1, The Natural Philosopher

Like the Colditz plane. Amazing. A 20 years war?

Engineer in plane company said batteries would need to pack twice the energy. Tesla are near.

You certainly do not.

A plane with a 30 mile range and a top speed of 70mph capable of carrying one or two people is precisely the limit of what is possible.

If you can remember I showed that a 600 mile (1000km) range for a large passenger airliner was impossible. The two are not exclusive

There are at least a dozen comparable - and indeed better - electric planes out there.

I could also show you a video showing that in fact steam engines are equally the way to go for aeroplanes

Indeed. And the removal of local bus services from your area must have come as an additional blow.

michael adams

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