On Sep 20, 8:42*pm, wrote:
Mark wrote:
On Sep 20, 7:15*pm, wrote:
Mark wrote:
On Sep 20, 6:00*pm, wrote:
george wrote:
On Sep 21, 3:44*am, wrote:
george wrote:

I think the 'electric' powered aircraft is little more than a toy.
Seehttp://www.youtube.com/watch?v=fWoLsJz8J5U

Compared to a real airplane, yes.

There may be some niche applications, like unmanned surveillance, where they
might be useful but they are terribly fragile.

And a range of 90 minutes....
That's barely enough to start a crosscountry.
If you want a fun machine that goes places cheaply
The Bantam B22 Microlight has a 4 hour range at 60+ knots.

I was referring to the unmanned research things that stay up for days, mostly
because they are little more than gliders covered with solar cells with an
electric motor.

Correct. Those are aeronautical physics experiments.

They are unmanned to set records in duration and elevation.

No they are unmanned because they would have to be many times bigger to
carry the weight of a person.

--
Jim Pennino

Actually you could carry 2 or 3 people. They are unmanned to set
records in duration and elevation.

Where would you put them, strapped across the wing?

Well, since there's sufficient lift to carry them, you would
design accomodations. But they didn't build them to carry
people. They were trying to set records in endurance and
elevation, within the criteria of the original mission statement
which sought to display it's applications in mapping, etc.

"Payload: Up to 726 lb., including ballast, instrumentation,
experiments and a supplemental electrical energy system..."

Or in other words, it was already full of junk.

There is sufficient lift to carry 3 really fat chicks. But
they were trying to set records in endurance and
elevation, plus market it's applications.

BTW, this text isn't in your link.

Yesterday you called me stupid for not backtracking a site
to another site that wasn't even linked.

In this case, the text is on the *same* website I
just gave you. It's in the specification area. (Hint,
ya gotta click the little prompt icon).

---
Mark


--
Jim Pennino

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