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Lenz2 wind tunnel tests are done

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Ungrounded Lightning Rod:
Why do ducks fly in a V pattern?  Turbulance is created from the wing tips and travels out behind and down.   Nasty little eddy currents.  If the ducks flew below or behind another duck the rear duck would have to work twice as hard to keep up and as well would have a rough ride.  They know what their doing !
I had heard that aerodynamicists studying geese had found that each goose (except the one at the point) took advantage of a side-effect of the next forward goose's wake (the tip vortex?) to reduce its own expenditure of muscle energy to fly.  (That's also why the wing beats are synchronized in a phase-offset manner)  The leaders trade off from time to time.
The effect is also avialable to aircraft - though it invloves them flying dangerously close, too close for human pilots on a long flight.  There has been at least one proposal to build a pairable aircraft with electonic piloting to make use of this.

Nando:

              F A N T A S T I C

Old F:
Ed
Boy you  raised  quite a stir with your home brew  wind tunnel .
All most as much as two brothers  from Dayton  Ohio did with there's  :  )
Great work keep them flying the right or should I say Wright  way.
Have Fun
Old F

windstuffnow:
  Funny you should say that... My home-made tunnel is based on the original Wright bro's tunnel only a bit larger...  I figured if they could get reasonably accurate readings from theirs I should be able to come close as well...
.

ghurd:
Funny you should say that... Do you recall their propeller efficiency, and the propeller efficiency of a modern Cessna type aircraft?

Seems like the History Channel said 88% vs. 92%? Or there about?

Not bad for a century of progress, depending on how you look at it.

(I know a lot of the stuff on there is un-correct)

G-

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