Crossword clue: surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles

The most common answer is alidad (6 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

alidad 6 letters wn-def

surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles

alidade 7 letters wn-def

surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles