Airport Lighting SpecialistsResearch Engineers PAPIThe Research Engineers PAPI unit is modular in design and features interchangeable PAPI projectors, facilitating low cost maintenance of the airfield installation. The option of servicing Research Engineers PAPI projectors in the workshop results in minimum runway shut-down time. re-lamping projectors is also a very simple task. The cost of life of Research Engineers' PAPI system is the least expensive on the market.
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