AVSIG: ATIS at KATL wwswsigarch.jpg (7236 bytes)

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AVSIG Discussion Sections >> Air Traffic Control

Ralph Jones
Top Gun


Reged: 08/31/01
Posts: 21214
Loc: 4CO2
Re: ATIS at KATL
      12/22/17 03:23 PM

Quote:

Didn't I read somewhere that we figured out how to generate lift from laminar shear by analyzing some unexplained flight behavior observed in condors?



Specifically, from the curl. Even if the flow has zero vertical velocity everywhere, if it has a curl component, you can extract energy by circling in a constant 55-degree bank -- and certain birds do just that.

(Translation: Curl is a vector calculus term describing the kind of flow that makes lily pads in a stream rotate.)

--------------------
Ralph Jones
LS-4a N49LS 6R

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Entire topic
Subject Posted by Posted on
* ATIS at KATL Bill Bridges - 9S1 12/20/17 12:04 AM
. * * Re: ATIS at KATL sreyoB yrraL   12/21/17 07:37 AM
. * * Re: ATIS at KATL Scott Dyer [HPN/NY]   12/21/17 08:18 AM
. * * Re: ATIS at KATL Jeff Hartmann CIC   12/21/17 12:22 PM
. * * Re: ATIS at KATL Kcid LlirreM   12/22/17 08:39 AM
. * * Re: ATIS at KATL Ralph Jones   12/22/17 09:49 AM
. * * ATIS at KATL Bob Dubner   12/22/17 02:25 PM
. * * Re: ATIS at KATL Terry Carraway   12/23/17 10:46 PM
. * * ATIS at KATL Ray Tackett   12/22/17 08:57 PM
. * * Re: ATIS at KATL Gil Buettner [KAUW]   12/23/17 09:37 AM
. * * Re: ATIS at KATL Ralph Jones   12/22/17 03:23 PM
. * * Re: ATIS at KATL Dave Siciliano (ADS)   12/21/17 11:21 AM
. * * Re: ATIS at KATL Scott Dyer [HPN/NY]   12/21/17 05:19 PM
. * * Re: ATIS at KATL B. Butler (Oregonian)   12/21/17 12:36 PM
. * * Re: ATIS at KATL Bruce Gorrell [EQY]   12/20/17 10:15 PM

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