Using the laser range finder to determine the range enhances your accuracy in determining the unknown position's location.
Doubtless you know that Swarovski can now provide you with a telescope sight for your rifle which includes a built-in laser range finder.
It has been suggested that a handheld laser range finder may be obtained on request in the " gun writer mode.
Minor improvements in tangent sights certainly were made, notably an automatic clamp, but quadrant elevation was mainly used, and in the case of guns equipped with position-finders (see Range-Finder) the guns could be layed for direction by means, of a graduated arc on the emplacement and a pointer on the mounting.
For purposes of torpedo attack the periscope is used as a range-finder to determine the distance the target is away, and also in connexion with tables to determine the correct time to fire the torpedo, allowing for the speed of the enemy, course, etc. Officers of submarines have devised various mechanical devices to avoid calculations, and these have been added to the periscope.
