Difference between revisions of "Rotating Optic"
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Revision as of 10:01, 1 March 2009
2-2-185
Alternative term: Revolving Optic
An assembly of one or more optical panels revolving about a vertical axis, and intended to produce a flashing light by Method a. of Note 1: to 2-2-180.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
