I purchased this on Ebay some 20+ years ago. It looks to be a military refugee, perhaps part of a tracking scope or theodolite. But God knows what, if it's military! My shipping scale shows 32.6 pounds, so it's quite hefty. I don't really see it in an airborne application, but could be.
The truss tube is impressive as is the welding that holds it together. Mostly non-ferrous (Aluminum?), but with some ferrous bits, judging from my magnet. Overall length is 27 inches. The primary mirror diameter is about 9 inches. I have no idea what the optical design is. Of course, it looks to be a Cassegrain design of some sort. But who's to tell from merely looking at it? I have no way to determine the optical curves, so have left it completely alone since I purchased it. In fact, the telescope as seen in these photos remains exactly as I received it from the Ebay seller, whose name I do not recall and have no record of. Was it you??
I'm not sure just what to do with it. I think the first order of business would be to establish what the optical profiles are before making any changes to it. If it is a Cassegrain, I have little way to test or re-figure the optics. The primary, maybe. The secondary, certainly not. New optics might be a possibility. But I want to be certain of what steps I take.
To be honest, at 27 inches tall and given the weight, it would make a fine end table. But still, the truss tube alone deserves to be resurrected as a telescope. Already I can see how it might be modified into a Newtonian RFT.
(Do I hear gasps of dismay??)
Therefore, I wish to poll the wisdom and the sensibilities of the forum populus. Please comment and let me know your thoughts.
Edited by William Whitaker, 05 December 2021 - 02:56 PM.