[GreenKeys] Teletype Spotting

[Virgil Bierschwale]

Ugc 25 I think

Sent from my iPhone

> On Dec 10, 2017, at 11:14 AM, Paul Birkel <pbirkel at gmail.com> wrote:
> 
> Q:  What heavy-metal units are seen in the following photo?
>  
> https://www.mitre.org/sites/default/files/styles/responsive_large/public/hero/SATIN-1961.jpg?itok=75shIlSa
>  
> (SATIN: SAGE Air Traffic Integration; SATIN aimed to develop a single, unified system for managing the nation's airspace.)
>  
> Thanks!
>  
> -----
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