Poignard
Well-Known Member
I picked this up at a car boot sale. Presumably something to do with aiming torpedoes or guns, but can anyone tell me exactly what it was for and how it was used?
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http://books.google.co.uk/books?id=...g#v=onepage&q=bearing rate slide rule&f=false
This link seems to give an explanation!
Well thanks for that rapid response. When I have mastered the technique for hitting targets the next step will be to adapt it to avoid them![]()
dont need ais then![]()