MIL-R-81589, MILITARY SPECIFICATION: RAIN REPELLENT FLUID APPLICATION SYSTEM (27-AUG-1968) [NO S/S DOCUMENT]
MIL-R-81589, MILITARY SPECIFICATION: RAIN REPELLENT FLUID APPLICATION SYSTEM (27-AUG-1968) [NO S/S DOCUMENT]., This Specification covers a system for the application of rain repellent fluid conforming to Specification MIL-R-81261 (WP) to the windshields of manned aircraft.