Electric airplane - recharged

wrote in message
...
However, if this thing works out, a 10 hour, 1000NM range electric
airplane
is actually possible.

What are you basing that statement on?

That there have been one hour and 100 miles flights made with the old Li-Po
batteries.

Even if it's half that, electrics would be viable.

Bill Daniels

That there have been one hour and 100 miles flights made with the old Li-Po
batteries.

Even if it's half that, electrics would be viable.

In what aircraft was that?

wrote in message
...
That there have been one hour and 100 miles flights made with the old
Li-Po
batteries.

Even if it's half that, electrics would be viable.

In what aircraft was that?

None, at present.

He is talking about an airplane, if it were equipped with some new batteries
that are being developed, seen in an earlier link, that could have a 10 fold
increase in capacity, and with quicker recharge times, as icing on the cake.
--
Jim in NC

On Dec 23, 11:12*pm, "Morgans" wrote:
wrote in message

... That there have been one hour and 100 miles flights made with the old
Li-Po
batteries.

Even if it's half that, electrics would be viable.

In what aircraft was that?

None, at present.

Hmm.

I don't think 10 fold would do the trick. The math shouldn't be too
hard to show one way or another. P = IV. Too much ampere draw to move
a plane.

I just did a bit of playing with MathCad.

If we assume an ultralight can fly on 10HP, and we want at least 1/2 Hour,
then I get 300# worth of Lead Acid batteries (4 85 A*H Deep cycle
batteries), or 56 # worth of Lithium Ion batteries, in an unknown
configuration.

The lead acid batteries, along with 100# for a 10 HP motor and prop, weigh
more than an ultralight can carry.

The Lithium Ion batteries are not available off the shelf. So buy a couple
hundred laptops, and improvise!



wrote in message
...
On Dec 23, 11:12 pm, "Morgans" wrote:
wrote in message

...
That there have been one hour and 100 miles flights made with the old
Li-Po
batteries.

Even if it's half that, electrics would be viable.

In what aircraft was that?

None, at present.

Hmm.

I don't think 10 fold would do the trick. The math shouldn't be too
hard to show one way or another. P = IV. Too much ampere draw to move
a plane.