one (B-17) went right by my home last week.
At first I thought we were under attack by the Confederate Air Force. I guess they were on a recon flight.
Fantastic, beautiful sound. Paul in AJ AZ
Is aluminum shinier than steel when polished?
Apr 11, 2004
25 Replies
Lucky man. Best I get here is the occasional DC-3. (Sorry... "Dakota")
Better than nothing, 'though.
-- Jeff Sydney, Australia
That's the final coating, Ive got something else in between, don't remember just what, but aluminizing and overcoating cost almost $300, for a ten inch mirror. Unusual mirror anyhow, 10 inch f8, was f10 when I got it. thickness isn't quite full, but not as thin as a dobsonian would be, started in 1941 by someone that probably died of old age trying to polish out the coarse grit scratches using rouge. I just said screw it and had it done professionally. (That wasn't cheap either.)
A bit of useless knowledge, focal point of a parabolic dish is D^2/16d where D is diameter and d is depth of curve....
erie
How about a fiberglass dish with silver mylar bonded to the surface?
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