AVSIG: Robot Birds..... are coming..... wwswsigarch.jpg (7236 bytes)

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AVSIG Discussion Sections >> Drones, RC, Sport, Recreation

Ralph Jones
Top Gun

Reged: 08/31/01
Posts: 21214
Loc: 4CO2
Re: Robot Birds..... are coming.....
      07/27/16 10:37 AM

He's conflating enough aspects of the problem to obscure the performance issues.

First off, the notion that we don't know how to make a flapping-wing aircraft is absurd. We've been making them for most of a century, and they outperform birds, because we know one thing that nature doesn't: how to make a rotating joint.*

That means we can flap wings with efficient rotary motion instead of wildly inefficient reciprocating motion. We can carry thousands of pounds with a helicopter; when birds get over four or five pounds, they have to resort to external power (thermal or orographic lift) to range far enough to get food.

Which leads to the fuel issue: sure, birds don't burn kerosene. They have to eat, constantly, to power their inefficient flapping. That contraption with the solar cells on the wings is a hoot <g>.

The takeaway of this project is that we finally know enough about microelectronics to make an autopilot as smart as a birdbrain. That doesn't mean it makes sense.

*Yes, I know about the bacterial flagellum, but it depends on its environment for lubrication.

</curmudgeon mode>

Ralph Jones
LS-4a N49LS 6R

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Entire topic
Subject Posted by Posted on
* Robot Birds..... are coming..... Reams Goodloe 07/26/16 11:17 PM
. * * Re: Robot Birds..... are coming..... Russell Holton   07/27/16 12:19 AM
. * * Re: Robot Birds..... are coming..... Ralph Jones   07/27/16 10:37 AM
. * * Re: Robot Birds..... are coming..... Jeff Hartmann CIC   07/27/16 12:15 PM

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