Prescison measuring system used by the faa for calibration of instrument landing system (ils), mls, vor, tacan, vortac, and other navigational aids. In ils calibration, an operator tracks the flight check aircraft and adjusts the theodolite so that the image remains in the crosshairs.
No other part numbers with same form, fit, and function found.
A precision telescopic instrument used in topographic and geodetic surveying or precise alignment operations. Generally, the optical systems for reading the horizontal and vertical circles are fully inclosed. The reading of the circles is made through optical micrometers. Some optical systems are so designed that readings of diametrically opposite points of the circles are mechanically averaged. The instruments are leveled by three leveling screws. Internal illumination may be provided for reading the circles and viewing the reticle crosslines. Excludes transit and transit, pocket.
Classification: Parts and accessories for surveying
NSN 6220-01-509-6882
NSN 4140-01-141-3700
NSN 6130-01-653-8207
NSN 6645-01-301-3066
NSN 6110-01-418-3292
NSN 5965-00-997-5764
NSN 5998-00-727-7428
NSN 6610-00-614-7943
NSN 5915-01-028-4466
NSN 5985-00-097-4034
NSN 6240-00-480-7896
NSN 5915-01-557-7909