Thanks for doing all that outreach, Clint!
Your post has generated a lot of slide rule nostalgia. There were a
number of analog computing devices developed for the aerospace
One of the ones I'm fascinated with is the "Martin Space Rule and
Handbook" and I gave a talk about it at the
meeting a couple of years ago. I suspect the orbital mechanics in
that recorded video will be "old hat" to the crew on this listserv
but some of you you might be interested in the history of the rule.
One of the really cool things, in my opinion, is the handbook that
goes along with the slide rule. And the Computer History Museum was
kind enough to scan their copy and make it available on this
for all of us to enjoy.
On 5/14/22 6:18 PM, Clint Bradford via
satellite presentations, I will ask attendees to access their
slide rules as we together derive satellite pass
data manually, to graph
each pass on equatorial graph paper …
“What - no one has a slide rule?” I will playfully
chide them. “Didn’t the
club president tell you all to have him for the
Well, the Puget Sound Repeater Group just floored
me: EIGHT SLIDE
RULES were in the audience (three from one person,
circular one and I recognized another as a Pickett
Vector Model 300 -
in its original leather case)!
Will Marchant, KW4WZ