Replace (4) aircraft control tower CAB window glass

The Contractor shall furnish all labor, materials, equipment and supervision to replace the Fogged window glass panels located in the Control Tower Cab (see attached drawing that identifies the four units to be replaced) in the McCain Control Tower. The units to be replaced are labeled #4, #9,#11 and #12 as reflected on Drawing A-104 (attached). The Contractor will be required to visit the McCain Control Tower indicated to field measure, and verify the dimensions, type glass and installation requirements required to replace the Glass unit. A safety plan indicating work procedures, size of cranes or other lift equipment required for this work shall be provided to the Contracting Officer for approval. Specifications and Additional details shall be listed in the following sections.

Note: Due to strict Airfield requirements the Control Tower Window replacement work shall be scheduled and coordinated with Air Operations and the Contracting Officer. The work shall be performed after normal working hours. The Airfield is normally closed on Saturdays. The Contractor will be required to furnish sufficient man power and equipment to complete the Glass replacement on the day scheduled. All electronic equipment inside the tower shall be protected at all times and at no time shall the opening be left open unsupervised or to inclement weather.

1. McCain Air Field Control Tower: Replace (4) Control Cab insulated window units. The new units shall consist of two (2) lites of ½” annealed glass separated by a ½” bronze air spacer. The primary Glass shall be type 1, Quality Q3, meeting federal specification ASTM C-1036. The insulated unit shall be fully sealed at perimeters. The unit shall include Capillary tubes to equalize pressure inside units. Units shall be designed to reduce exterior noise to 30 db inside tower cab. The window shall also be designed to resist 120 mph wind loading, and have a light transmissivity of 85%. During installation all cleaners, primers or sealants shall be type recommended by the gasket manufacture. The new windows shall be installed and sealed not allowing any water or air infiltration in building. At completion the new window units shall be cleaned inside and out by the installer.