As I move into my sixth decade of life, I’m posting a series of stories from my past. This is part of that series.
A few weeks ago, as I waled to the coffee shop where I spend a lot of my writing time, a woman coming the other way pointed to me and said “Tacit Rainbow!”
Normally I answer people who randomly greet me on the street (when you wear bunny ears everywhere you go, this happens a lot), but on this occasion I was so gobsmacked I just stood there with my mouth hanging open until she’d passed.
So, a little backstory. “Tacit Rainbow” was the code name for a US Air Force project in the 80s and 90s. The plan was to create a cruise missile that could be launched near suspected enemy surface-to-air missile batteries, to replace Wild Weasel pilots.
The missle (by today’s standards, it would be considered a cross between a missle and a drone) would loiter, flying circles around the area until the enemy activated its anti-aircraft radar. At that point, the Tacit Rainbow would automatically lock on to the enemy radar and follow it down, destroying the SAM battery’s control and tracking capability.

AGM-136 Tacit Rainbow, the only one left in the world, on display in a museum. The Tacit Rainbow was the world’s first loitering munition.

Flight test of an early Tacit Rainbow prototype. It has two sets of wings to give it tons of lift for extended loiter.
The Tacit Rainbow project was canceled some time in the early 90s without ever going into production. I wasn’t particularly a military buff or anything, but when I heard about the project in the 1980s, I really liked the way those two words, “Tacit Rainbow,” sounded together. I adopted Tacit Rainbow as my handle on old-school computer BBS systems. For a time, more people knew me as Tacit Rainbow than knew my real name.
Thing is, I only used that name from about 1988 to about 1996 or 1997 or so. Classic computer bulletin board systems were text-only, no graphics. To my knowledge, there are no photos of me from those days attached to the name “Tacit Rainbow.”
Not that it would matter. I looked a lot different back then. Here’s a photo of me from the days I ran a BBS called a/L/T/E/R r/E/A/L/I/T/Y:

Today, not only have I not used the name Tacit Rainbow in 30 years, the only vestige remaining is my AOL email address “tacitr”. I got that email address in 1992, truncating it because at the time AOL dodn’t allow names as long as “Tacit Rainbow.” I still have it, and even still use it occasionally.
The idea that someone randomly wandering down the street would recognize me from a computer BBS handle I used thirty years ago was so jaw-droppingly improbable I just stood rooted in place until she was gone.
Had I had my wits about me, I would have been like, “Wait, hang on, do we know each other? Were you a BBS regular back in the day? How on earth do you know that name?”
Somewhere around, I don’t know, 1998 or 1999 or so, I was sitting in front of my computer when a chat window popped up asking me if the name “tacitr” came from Tacit Rainbow. When I said it did, the guy was like “OMG, were you on the project at Northrop? I was one of the lead engineers, retired after it got canceled. Did we work together?”
I explained that I wasn’t part of it but I knew about it and took my name from it because I liked the way those words sounded together, and we ended up chatting for about two or three hours. Really interesting guy. The project was fascinating and had some incredibly advanced avionics for the time, though apparently it was plagued by mismanagement, which is apparently one of the biggest reasons the DoD canceled it.
I still would dearly love to know why a random woman on a random street in Portland looked at me and said “Tacit Rainbow!” There’s a story there I will likely never know.





























































