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| tarkkuuslähestymistutka | |||
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| tarkkuuslähestymistutka | |||
| PAR tarkkuuslähestymisen tutka | |||
| Englisch Thesaurus | |||
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| PAR | |||
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| Primary radar equipment used to determine the position of an aircraft during final approach, in terms of lateral and vertical deviations relative to a nominal approach path, and in range relative to touchdown. (Precision approach radars are designated to enable pilots of aircraft to be given guidance by radiocommunication during the final stages of the approach to land.) | |||
| A high-definition, short-range radar used as an approach aid. This system provides the controller with altitude, azimuth and range information of high accuracy for the purpose of assisting the pilot in executing an approach and landing. This form of navigation assistance is termed a "precision radar approach." | |||
