[GreenKeys] Help in Understanding Navy Classified Message System 1965-1975

[Steve Garrison]

Did the Navy use the KL-7 to encrypt traffic?  The AF used them and since it was mechanical as well as electronic it was maintained by TTY repair.

There is a good computer simulation of the KL-7 available online.

Steve G./N4TTY
Sent from my iPhone

> On Apr 25, 2018, at 8:51 PM, Nick England <navy.radio at gmail.com> wrote:
> 
> I have been corresponding with a Navy officer, CDR Bryan Leese, who is writing his dissertation concerning how Intelligence info was handled by the US Navy back in the Vietnam days. He's too young to have experienced anything but computers and screens. I have pointed him to some TTY photos and videos but that's not the same thing as seeing the Real Thing.
> Q) Is there anyone in the area of Bethesda MD who could give this guy a demo of an operating teletype? Ideally a Model 28 with TD and reperf so he can see what was in use then. But it doesn't have to be a M28 for him to get an idea of how marvelous these machines were and what working with them was like.
> 
> I have also pointed him at the little info that I have on line about message processing, Fleet Broadcast, etc. but I have no direct experience with anything other than equipment and know very little about actual operations
> Q) Is there anyone on the list who had experience with handling Navy message traffic back in the day? A CT might be best for his purposes, but any RM could provide more info than I can. If so, maybe you could answer some of his questions about what operational life was really like.
> 
> His email and phone numbers are below...
> 
> Thanks
> Nick England K4NYW
> Chapel Hill NC
> www.navy-radio.com
> 
> ---------- Forwarded message ----------
> From: Bryan Leese <bhleese at yahoo.com>
> Date: Wed, Apr 25, 2018 at 7:14 PM
> Subject: Re: Help in Understanding Navy Classified Message System 1965-1975
> To: Nick England <nick at navy-radio.com>
> 
> Nick,
> 
> Amazing stuff! I am in Bethesda, MD and would love to see some equipment. You wouldn't happen to know any CTMs from the Vietnam era who could talk specifics on how their operations. I assume it was all the same equipment, but maybe a single channel off-line crypto that changed into multiple channel online crypto? I imagine any radio room could have received the message traffic, but only decode it with the right crypto.
> 
> thanks again for all your help,
> Bryan
> --------------------------------------------
> 
> On Fri, Apr 20, 2018 at 5:36 PM, Bryan Leese <bhleese at yahoo.com> wrote:
> 
>   Nick,
>   I am CDR Bryan Leese, an active duty intelligence officer working on a  dissertation about afloat operational intelligence (OPINTEL) in the 1960s and 1970s. I came across your awesome website while researching how the classified, especially compartmented intelligence, messages were sent to the carriers during 1965 to 1975. I am looking to understand the communications path and how it improved from 1965 through 1975. I am lost in the sauce, as they say, in
>  trying to make sense of it. Can you help me?
> 
>  I am also looking to see if there was a Fleet Broadcast for classified reporting during this time.
> 
> vr
> Bryan Leese
> National Intelligence University
> 757.285.6425
> 
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