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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: The "ИМС-3": a clone of the SOLD KM2 octant
From: Tony Oz
Date: 2021 May 13, 01:05 -0700
From: Tony Oz
Date: 2021 May 13, 01:05 -0700
Hello!
Forgot to list the most useful addition I like on my ИМС-3: the drum vernier. Instead of the adjustable brake (the rubber boot in the lower left corner) there is a rubber roller - similarly looking - which may be brought into contact with the inner side of thr drum, the roler has a turning knob - very handy to operate with the thumb of one's right hand. Fine drum adjustments became easy and smooth. (Both the ИАС-1 and ИАС-1М clones have brakes, not too convenient)
Warm regards,
Tony
60°N 30°E
